# Patent

## Title
Highly corrosion-resistant, rust-prevention coating material, highly corrosion-resistant steel, and steel structure

## Abstract

A highly corrosion-resistant, rust-prevention coating material comprising:

    
    
        an inorganic binder; and
        Zn metal particles comprised of Zn and unavoidable impurities and dispersed in the binder at the rate of 30 mass % or greater based on a dry coating film,
        wherein (i) the Zn metal particles include (i-1) fine-grain Zn metal particles of 0.05 to 5 μm peak grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with a single peak and a tail on either side of the peak and (i-2) coarse-grain Zn metal particles of 6 to 100 μm peak grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with another single peak and a tail on either side of the peak, and
        wherein (ii) the percentage of all Zn metal particles accounted for by Zn metal particles of 0.05 to 5 μm grain diameter expressed in volume percentage is 5 to 99%.

## Background
FIELD OF THE INVENTION
This invention relates to a highly corrosion-resistant, rust-prevention coating material and a highly corrosion-resistant steel, particularly to a highly corrosion-resistant, rust-prevention coating material that exhibits outstanding corrosion resistance and rust prevention when applied to the surface of various types of steel, to a highly corrosion-resistant steel coated with the coating material, and to a steel structure including the steel.
DESCRIPTION OF THE RELATED ART
Rust-prevention coating materials containing large amounts of Zn particles, specifically zinc-rich paints, are in general use as rust-prevention coating materials against combating steel rusting. The Zn particles used in a zinc-rich paint are usually produced by the mist process. Zn particles (grains) produced by the mist process are spherical particles with a grain diameter distribution wherein the average grain diameter has a single frequency peak in the region of from several to several tens of μm.
The Zn particles are used mainly in the undercoating of heavy-duty corrosion preventive coating. The rust-prevention mechanism is characterized in utilizing the sacrificial corrosion protection effect of the Zn particles contained in the coating.
The rust-prevention performance of a zinc-rich paint coating therefore depends heavily on the sacrificial corrosion protection effect of the Zn particles. In some use environments, the rate of Zn consumption is so high that the protective effect with respect to the steel does not last very long.
Countermeasures include that of reducing the average grain diameter of the Zn particles in the coating material and that of increasing the coating thickness. But these expedients may lead to a decline in adherence to the steel and ready occurrence of coat cracking and sagging. In other words, it has been difficult to achieve a coating that offers excellent rust prevention performance while also being good in physical properties and easy to apply. The aforesaid countermeasures thus leave much to be desired.
In view of this situation, a need has been felt for the development of a high-performance zinc-rich paint that preserves the current merits of such paints and further exhibits sacrificial corrosion protection over the long term. A number of proposals for this purpose have been reported.
For example, Japanese Patent Publication (A) No. H08-151538 ('538) teaches an organic coating composition reduced in Zn particle and other metal content by addition of a bonding agent and metal powder of less than −750 mV potential.
Inventions aimed at improving corrosion resistance by combining new alloy particles have also been reported.
For example, Japanese Patent Publication (A) No. H01-3111178 ('178) teaches a zinc-rich paint containing Zn alloy particles and Mn particles in addition to Zn particles. And Japanese Patent Publication (A) No. 2001-164194 ('194) teaches a corrosion-resistant coating material containing Zn—Al—Mg alloy particles.
These inventions attempt to enhance corrosion resistance by combining Zn—Mg alloy particles and an organic resin such as epoxy resin or urethane resin.
In addition, Japanese Patent Publication (A) No. H02-73932 ('932) teaches use of an inorganic binder. The technology of this publication exploits the long-life performance of inorganic Zn—Mg particles having a metal structure composed of Zn and MgZn2.
A number of other studies have approached the issue from the aspect of particle shape. For example, Japanese Patent Publication (A) No. 2002-285102 ('102) and Japanese Patent Publication (A) No. 2005-336431 ('431) teach inorganic corrosion resistant coating materials containing flaky particles of Zn—Mg alloy and corrosion-resistant steels coated with the coating materials.
SUMMARY OF THE INVENTION
Although '538 achieves corrosion resistance superior to that of conventional zinc-rich paints by using a binding agent and controlling metal powder potential, it is an ordinary organic coating material readily degraded in an environment involving a combination of elements like ultraviolet rays, moisture and oxygen, so that it is vulnerable to secondary issues such the need for relatively frequent maintenance.
Another problem with '538 that must be addressed is that it generates much toxic gas during baking.
'178 and '194 use mainly organic binders and '932 uses mainly an inorganic binder. All three teach use of high-corrosion-resistance particles such as Mg, Al and the like as metal particles.
They improve corrosion resistance by forming MgZn2 and Mg2Zn11 intermetallic compounds. Specifically, the intermetallic compounds are present inside alloy particles whose surfaces are covered with an oxide layer or Zn and Mg solid solution phase.
The intermetallic compound phase having high corrosion resistance therefore cannot easily appear at the alloy particle surfaces. As a result, corrosion resistance is inadequate.
Moreover, when low-electrical-conductivity ZnCl2.4Zn(OH)2.H2O forms in the main rust component, the sacrificial corrosion protection effect is not thoroughly manifested. This is another issue that must be overcome.
The alloy particles are most often produced by ingot fragmentation, the atomization process or the mist process. Reliable production of the alloy particles on an industrial scale is therefore impossible. This is another point requiring attention.
Although '102 and '431 teach flaky alloy particles, spray-coating of flaky alloy particles is difficult. Flaky alloy particles cannot achieve adequate coating film adherence by conventional airless spraying, so that improvement is necessary in this regard.
The object of this invention is therefore to provide a highly corrosion-resistant, rust-prevention coating material and a highly corrosion-resistant steel that exhibit corrosion resistance and rust prevention markedly superior to that obtainable heretofore. It achieves this object by, unlike what has been possible heretofore, producing Zn metal particles or Zn alloy particles that have two different peak grain diameters or average grain diameters, particularly Zn metal particles or Zn alloy particles having two peaks including one added on the fine-grain side, and combining these particles with an inorganic or organic binder.
In the present invention, Zn metal particles comprised of Zn and unavoidable impurities are dispersed in the binder of the rust-prevention coating material in an amount of 30 mass % or greater based on the dry coating film. The inventors accomplished the invention by taking advantage of the following fundamental knowledge acquired in the course of a broad-ranging study.
Outstanding corrosion resistance, rust prevention and coating property are exhibited when the Zn metal particles used have a grain diameter distribution including two peaks, namely, when the Zn metal particles used include both (i) fine-grain Zn metal particles of 0.05 to 5 μm peak grain diameter or 0.01 to 5 μm average grain diameter and (ii) coarse-grain Zn metal particles of 6 to 100 μm peak grain diameter or average grain diameter, and the percentage of all Zn metal particles accounted for by fine-grain Zn metal particles of 0.05 to 5 μm grain diameter expressed in volume percent is 5% to 99%.
The inventors further conducted a detailed study regarding the possibility of further improving the corrosion resistance and rust prevention offered by the aforesaid particles having a grain diameter distribution including two peaks.
As a result, they learned that a rust-prevention coating material excellent rust prevention can be obtained by using as the fine-grain Zn metal particles or coarse-grain Zn metal particles Zn alloy particles containing, in mass %, 0.01 to 30% Mg and further that a rust-prevention coating material of still more excellent rust prevention performance can be obtained by incorporating in the Zn alloy particles, in mass %, one or both of Al: 0.01 to 30% and Si: 0.01 to 3%.
The inventors also conducted studies focused on the shape and state of the Zn alloy particles and the Zn—Mg—Al—Si alloy particles containing one or both of Al: 0.01 to 30 mass % and Si: 0.01 to 3 mass %.
As a result, they ascertained that rust prevention improves, probably owing to improved spontaneous dissolving property, when the fine-grain alloy particles or coarse-grain alloy particles are not spherical but are shaped bodies that are formed by fragmentation or the like to have multiple flat or curved surfaces each enclosed by a single contour line and that have physical fragmentation (fracture) faces or cracks on the surfaces thereof.
A particularly noteworthy finding was that rust prevention improves dramatically when cracks of 0.01 μm or greater length and 0.01 μm or greater depth are present. The inventors further found that in this case a notable additional improvement in rust prevention is observed when one or more of the intermetallic compounds MgZn2, Mg2Zn11, MgZn and Mg2Zn3 are present on the fragmentation surfaces.
The inventors further made an in-depth study with regard to a method for producing Zn metal particles having two grain-diameter frequency peaks in the grain-diameter distribution.
As a result, they discovered that Zn alloy particles that have not only a grain-diameter frequency peak like the conventional one but also a grain-diameter frequency peak farther to the fine-grain side than the conventional one and that exhibit even better corrosion resistance and rust prevention can be formed by producing primary particles by an ordinary method like the mist process or gas-atomization process and thereafter causing the particles to collide with one another or collide with another solid body.
The Zn alloy particles having the two grain-diameter frequency peaks exhibit excellent corrosion resistance and rust prevention when used as coating material pigment without modification. However, a further investigation revealed that when used as mixed with conventional, widely-employed Zn particle pigment produced by an ordinary method like the mist process or gas-atomization process, there is realized corrosion resistance and rust prevention far superior to that when conventional Zn particles are used alone.
The inventors further found that an organic coating material using the invention Zn metal particles or Zn alloy particles as pigment exhibits excellent corrosion resistance and rust prevention not heretofore achievable, even in a severe environment including a combination of organic coating material degrading factors like ultraviolet rays, moisture and oxygen.
The inventors further carried out a thorough study regarding the distribution of the Zn metal particles in the dry coating film and learned that an additional improvement in corrosion resistance and rust prevention can be achieved by concentrating the fine-grain Zn alloy particles in the film surface layer.
The present invention was accomplished based on the foregoing knowledge. The gist of the invention is as set out below.
(1) A highly corrosion-resistant, rust-prevention coating material comprising:
an inorganic binder; and
Zn metal particles comprised of Zn and unavoidable impurities and dispersed in the binder at the rate of 30 mass % or greater based on a dry coating film,
wherein (i) the Zn metal particles include (i-1) fine-grain Zn metal particles of 0.05 to 5 μm peak grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with a single peak and a tail on either side of the peak and (i-2) coarse-grain Zn metal particles of 6 to 100 μm peak grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with another single peak and a tail on either side of the peak, and
wherein (ii) the percentage of all Zn metal particles accounted for by Zn metal particles of 0.05 to 5 μm grain diameter expressed in volume percentage is 5 to 99%.
(2) A highly corrosion-resistant, rust-prevention coating material comprising:
an inorganic binder; and
Zn metal particles comprised of Zn and unavoidable impurities and dispersed in the binder at the rate of 30 mass % or greater based on a dry coating film,
wherein (i) the Zn metal particles include (i-1) fine-grain Zn metal particles of 0.01 to 5 μm average grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with a single peak and a tail on either side of the peak and (i-2) coarse-grain Zn metal particles of 6 to 100 μm average grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with another single peak and a tail on either side of the peak, and
wherein (ii) the percentage of the fine-grain Zn metal particles and coarse-grain Zn metal particles accounted for by the fine-grain Zn metal particles expressed in volume percentage is 5 to 99%.
(3) A highly corrosion-resistant, rust-prevention coating material according to (1) or (2), wherein the metal particles are Zn alloy particles containing, in mass %, Mg: 0.01 to 30% and a balance of Zn and unavoidable impurities.
(4) A highly corrosion-resistant, rust-prevention coating material according to (1) or (2), wherein the zinc metal particles are mixed particles including (a) zinc metal particles containing Zn and unavoidable impurities and (b) Zn alloy particles containing, in mass %, Mg: 0.01 to 30% and a balance of Zn and unavoidable impurities.
(5) A highly corrosion-resistant, rust-prevention coating material according to (3) or (4), wherein the Zn alloy particles further contain, in mass %, one or both of Al: 0.01 to 30% and Si: 0.01 to 3%.
(6) A highly corrosion-resistant, rust-prevention coating material according to any of (3) to (5), wherein the Zn alloy particles have physical fracture facets and/or cracks of 0.01 μm or greater length or cracks of 0.01 μm or greater depth, and Mg solid solution phase and Zn—Mg intermetallic compounds are present at the fragmentation faces and/or cracks
(7) A highly corrosion-resistant, rust-prevention coating material according to (6), wherein an average value of the aspect ratio (maximum grain diameter/minimum grain diameter) of the Zn alloy particles is 1 to 1.5.
(8) A highly corrosion-resistant, rust-prevention coating material according to (6) or (7), wherein the Zn—Mg intermetallic compounds are one or more of MgZn2, Mg2Zn11, Mg2Zn3, MgZn and Mg7Zn3.
(9) A highly corrosion-resistant, rust-prevention coating material according to any of (3) to (8), wherein the Zn alloy particles are polyhedrons having multiple flat or curved surfaces each enclosed by a single contour line.
(10) A highly corrosion-resistant, rust-prevention coating material according to any of (3) to (9), which has dispersed in the binder thereof not only said fine-grain Zn alloy particles and coarse-grain Zn alloy particles but also Zn metal particles of an average grain diameter of 0.05 to 50 μm containing Zn and a balance of unavoidable impurities, wherein (a) the total volume percentage of all metal particles accounted for by Zn alloy particles of a grain diameter of 0.05 to 5 μm expressed in volume percentage is 5 to 99% and (b) the metal particles are in total dispersed in the binder at the rate of 30 mass % or greater based on a dry coating film.
(11) A highly corrosion-resistant, rust-prevention coating material according to (10), wherein the ratio, in mass %, of (amount of the fine-grain and coarse-grain Zn metal particles or amount of the fine-grain and coarse-grain Zn alloy particles): (amount of the Zn metal particles of an average grain diameter of 0.05 to 50 μm containing Zn and a balance of unavoidable impurities) is, when expressed as 1/x, such that x is 300.0 or less.
(12) A highly corrosion-resistant, rust-prevention coating material according to (11), wherein the Mg content of the mixed particles including the Zn alloy particles and the Zn metal particles of an average grain diameter of 0.05 to 50 μm containing Zn and a balance of unavoidable impurities is 0.01 to less than 30 mass % where the total of the mixed particles is defined as 100 mass %.
(13) A highly corrosion-resistant, rust-prevention coating material according to any of (1) to (12), wherein an organic binder is used instead of the inorganic binder.
(14) A highly corrosion-resistant steel coated with a highly corrosion-resistant, rust-prevention coating material set out in any of (1) to (13), wherein the thickness of the dry coating film is 2 to 700 μl and the fine-grain Zn metal particles and coarse-grain Zn metal particles or the fine-grain Zn alloy particles and coarse-grain Zn alloy particles are dispersed in the coating film.
(15) A highly corrosion-resistant steel coated with a highly corrosion-resistant, rust-prevention coating material set out in any of (3) to (13),
wherein the thickness of the dry coating film is 2 to 700 μm and the fine-grain Zn alloy particles and coarse-grain Zn alloy particles are dispersed in the coating film, and
wherein the content ratio of the fine-grain Zn alloy particles of a grain diameter of 0.05 to 5 μm in an outermost 10% thickness surface layer region of the dry film is twice or greater the content ratio of the fine-grain Zn alloy particles of a grain diameter of 0.05 to 5 μm in the whole dry film.
(16) A steel structure equipped partially or completely with the highly corrosion-resistant steel set out in (14) or (15).
This invention enables provision of highly corrosion-resistant coating material and highly corrosion-resistant steel that exhibit excellent corrosion-resistance and rust prevention unattainable using the metal particles added to conventional rust-prevention coating materials. It achieves this improvement over the prior art by producing Zn metal particles or Zn alloy particles having two grain-diameter frequency peaks in the grain-diameter frequency distribution and combining the particles with an inorganic or organic binder.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagram showing the grain-diameter distribution of the Zn metal particles contained in a conventional zinc-rich primer. It shows part of the results obtained by laser scattering particle distribution analysis. The horizontal axis is scaled for grain diameter (μm) represented as equivalent spherical diameter. The vertical axis is scaled for frequency distribution (%) represented as equivalent spherical volume.
FIG. 2 is a diagram showing and example of the grain-diameter distribution of Zn alloy particles contained in the invention highly corrosion-resistant, rust-prevention coating material. It shows part of the results obtained by laser scattering particle distribution analysis. The horizontal axis is scaled for grain diameter (μm) represented as equivalent spherical diameter. The vertical axis is scaled for frequency distribution (%) represented as equivalent spherical volume.



DETAILED DESCRIPTION OF THE INVENTION
The requirements specified by the present invention will be explained in detail.
The invention does not particularly specify the method of producing the Zn metal particles and Zn alloy particles used. The coarse-grain Zn metal particles and coarse-grain Zn alloy particles of the invention can, for example, be produced by general-purpose powder production methods such as the mist process or the atomization process.
The fine-grain Zn metal particles and fine-grain Zn alloy particles can be produced by the mist process or the atomization process. They can also be produced by a physical fragmentation method that causes Zn metal particles or Zn alloy particles produced by one of the foregoing processes to collide directly or indirectly with one another.
As specific physical fracture methods can be mentioned, for instance, that of adding Zn metal particles or Zn alloy particles obtained by the mist process or atomization process to toluene or xylene and jetting the so-obtained slurry so as to bring counterflows into collision with one another, and that of causing a jetted stream of the slurry to collide perpendicularly with a separate flat solid body.
The Zn metal particles or Zn alloy particles contained in the highly corrosion-resistant, rust-prevention coating material according to the invention must be composed of (i-1) fine-grain Zn metal particles or fine-grain Zn alloy particles of 0.05 to 5 μm peak grain diameter or 0.01 to 5 μm average diameter whose grain-diameter distribution has a grain-diameter frequency distribution with a single peak and a tail on either side of the peak and (i-2) coarse-grain Zn metal particles or coarse-grain Zn alloy particles of 6 to 100 μm peak grain diameter or average grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with another single peak and a tail on either side of the peak.
Although Zn metal particles that have a single grain-diameter frequency distribution peak, like those contained in conventional rust-prevention coating materials, can be produced at low cost, they are limited with regard to improvement of the metal particle filling factor because, on average, particles of the same size come to be evenly distributed in the coating film.
Although the approach to corrosion resistance improvement has been to reduce the peak grain diameter or average grain diameter of the metal particle grain-diameter distribution, thereby increasing the filling factor, or to increase film thickness, adequate corrosion resistance improvement has not been achieved because these measures cause film cracking and sagging.
In contrast, the present invention imparts two grain-diameter frequency peaks to the grain-diameter distribution of the Zn metal particles or Zn alloy particles, thus increasing the filling factor and making it possible to markedly improve corrosion resistance without application of a thick coat.
The grain-diameter distribution of the Zn metal particles and Zn alloy particles can be determined by dispersing the Zn metal particles or Zn alloy particles in an organic solvent such as toluene or xylene having a moisture content of 0.8% or less and conducting laser scattering particle distribution analysis in this state.
When the moisture content is high, caution is required because the grain diameters change owing to a reaction between the Zn metal particles or Zn alloy particles and water.
In accordance with the principle of laser scattering analysis, the grain-diameter distribution is determined from the equivalent spherical diameters of the Zn metal particle or Zn alloy particle grain diameters.
The grain-diameter distribution can be represented as a histogram by representing the grain diameter d (μm) logarithmically on the horizontal axis, defining 25 to 27 d segments on the logarithmic representation for the individual orders of magnitude change in d, and linearly representing the frequency (vol %) detected for every d segment on the vertical axis.
In this invention, fragmenting the Zn alloy particles so as to form physical fragmentation (fracture) facets or cracks on the surfaces thereof produces an improvement in corrosion resistance exceeding the improvement in corrosion resistance that can be realized by increasing the filling factor.
A “physical fragmentation (fracture) face” as termed with respect to the present invention means a face shaped by a portion of a spherical particle breaking away. As explained further later, the fact of the Zn alloy particles having physical fragmentation faces makes it possible to realize a considerable improvement in corrosion resistance and rust prevention.
A “crack” as termed with respect to the present invention means a fissure present at the spherical particle surface of a length of 0.01 μm or greater or a depth from the surface of 0.01 μm or greater. When the length or depth of the cracks is less than 0.01 μm, an adequate improvement in corrosion resistance cannot be obtained. A length or depth of 0.01 μm or greater is therefore necessary.
The cracks are often formed as a byproduct of the fragmentation for obtaining the physical fragmentation faces. Regarding the abundance of cracks, it is preferable for 1 or more cracks of 0.01 μm or greater length or depth to be seen in 20% or greater of the number of Zn alloy particles per field of observation when the Zn alloy particles are observed with a scanning electron microscope or the like.
When the peak grain diameter of the grain-diameter distribution of the fine-grain Zn metal particles or fine-grain Zn alloy particles is less than 0.05 μm, or when the average grain diameter thereof is less than 0.01 μm, loss from the surfaces tends to occur owing to mechanical removal or chemical extraction, so that adequate sacrificial corrosion protection cannot be obtained. Therefore, the lower limit of the peak grain diameter was defined as 0.05 μm and the lower limit of the average grain diameter as 0.01 μm.
Two grain diameter frequency peaks cannot be obtained when the peak grain diameter or average grain diameter of the fine-grain Zn metal particles or fine-grain Zn alloy particles exceeds 5 μm, so 5 μm was defined as the upper limit.
The peak grain diameter or average grain diameter of the grain-diameter distribution of the coarse-grain Zn metal particles or coarse-grain Zn alloy particles was defined as 6 μm or greater because when it is less than 6 μm, the corrosion resistance and rust prevention saturate and, in addition, it becomes impossible to obtain two grain diameter frequency peaks.
When the peak grain diameter or average grain diameter of the grain-diameter distribution of the coarse-grain Zn metal particles or coarse-grain Zn alloy particles exceeds 100 μm, stable spray coating or brush coating cannot be achieved. The upper limit was therefore defined as 100 μm.
When coating property and adherence are a concern in addition to corrosion resistance, it is preferable to define the peak grain diameter or average grain diameter of the grain-diameter distribution of the fine-grain Zn metal particles or fine-grain Zn alloy particles as 1 to 4 μm and the peak grain diameter or average grain diameter of the grain-diameter distribution of the coarse-grain Zn metal particles or coarse-grain Zn alloy particles as 6 to 20 μm.
Further, from the viewpoint of achieving stable spray coating, it is preferable to define the peak grain diameter or average grain diameter of the grain-diameter distribution of the fine-grain Zn metal particles or fine-grain Zn alloy particles as 1.5 to 2.5 μm and the peak grain diameter or average grain diameter of the grain-diameter distribution of the coarse-grain Zn metal particles or coarse-grain Zn alloy particles as 8.5 to 11.5 μm.
Insofar as the particle diameters are within the foregoing ranges, no limit is placed on the width ratios of the two different grain diameter frequency peaks. However, sharper grain diameter frequency peaks are preferable from the viewpoint of maximizing rust prevention performance.
Among all of the particles contained in the invention highly corrosion-resistant, rust-prevention coating material, i.e., among the combined total of the fine-grain Zn metal particles or fine-grain Zn alloy particles whose peak grain diameter or average grain diameter of the grain-diameter distribution is 0.05 to 5 μm and the coarse-grain Zn metal particles or coarse-grain Zn alloy particles whose peak grain diameter or average grain diameter of the grain-diameter distribution is 6 to 100 μm, the percentage of the particles accounted for by particles of 0.05 to 5 μm diameter, expressed in volume percentage, must be 5% or greater.
When the percentage is less than 5%, no pronounced improvement of corrosion resistance and rust prevention is observed.
The maximum percentage accounted for by particles of 0.05 to 5 μm diameter contained in the invention highly corrosion-resistant, rust-prevention coating material, expressed in volume percentage, is defined as 99% because corrosion resistance improves in proportion as the percentage of fine-grain Zn metal particles or fine-grain Zn alloy particles increases.
At greater than 99%, however, the excessive fine-grain Zn metal particles do not contribute to, but may detract from, the effect of improving corrosion resistance. The upper limit is therefore defined as 99%.
Insofar as the percentage of all Zn metal particles having two grain diameter frequency peaks accounted for by Zn metal particles of 0.05 to 5 μm diameter, expressed in volume percentage, is 5 to 99%, a dramatic improvement in corrosion resistance and rust prevention can be achieved even if Zn metal particles produced by the mist process or gas atomization process are combined.
From the viewpoint of the applied film, it is necessary for the fine-grain Zn metal particles or fine-grain Zn alloy particles and the coarse-grain Zn metal particles or coarse-grain Zn alloy particles to be present in a total amount of 30 mass % or greater based on the dry coating film. Excellent corrosion resistance and rust prevention cannot be realized when the content is less than 30 mass %.
In the present invention, the presence of the two grain diameter frequency peaks enables marked improvement of corrosion resistance and rust prevention even when Zn alloy particles obtained by adding Mg, Al, Si or the like to Zn are combined with conventional Zn metal particles.
The corrosion resistance and rust prevention improving effect produced by the Zn alloy particles or the mixed Zn metal particles and Zn alloy particles having two grain diameter frequency peaks is more pronounced than the corrosion resistance and rust prevention improving effect produced by the Zn alloy particles having two grain diameter frequency peak.
Reasons for this stronger corrosion resistance improvement include, among others, an increase in the grain-diameter frequency distribution on the fine-grain side attributable to Mg addition and exposure of physical fracture facets and cracks.
No substantial improvement in rust prevention performance is obtained when the Mg content of the Zn alloy particles is less than 0.01 mass % and rust prevention performance declines when the Mg content exceeds 30 mass %. Mg content is therefore defined as 0.01 to 30 mass %.
In order to enhance physical fragmentation property and crack occurrence by adding Mg to the Zn alloy, Mg is preferably added to a content of 0.5 to 15 mass %. As Mg is more expensive than Zn, an Mg content of 0.5 to 10 mass % is economically preferable.
The mixing ratio of the Zn metal particles and Zn alloy particles need not be defined insofar as the aforesaid composition limits are observed. However, Mg addition produces no substantial improvement in rust prevention at an Mg content of less than 0.01 mass %, while Mg addition has a reverse effect at a content exceeding 30 mass %. The total Mg content is therefore preferably 0.01 to 30 mass %.
Although corrosion resistance improves with increasing Mg content, Mg is a more expensive material than Zn. Since overall material cost is therefore increased by Mg addition, the total Mg content is preferably 0.01 to 10 mass % for optimum balance between corrosion resistance and economy.
Moreover, the inventors discovered that addition of general-purpose Zn metal particles of 2 to 20 μm average grain diameter to Zn alloy particles having two grain diameter frequency peaks in the grain-diameter distribution enables a major improvement in economy without loss of steel corrosion resistance enhancing effect.
However, in this case too, it is necessary for the volume percentage of the total of the Zn alloy particles and Zn metal particles accounted for by Zn alloy particles of 0.05 to 5 μm diameter to be 5 to 99% and for the Zn alloy particles and Zn metal particles to be dispersed in a total amount of 30 mass % or greater based on the dry coating film.
Further, as regards the mixing of the Zn alloy particles and Zn metal particles, it is preferable from the viewpoint of improving corrosion resistance and rust prevention to conduct the mixing under a condition whereby the ratio, in mass %, of (Zn alloy particle content %): (Zn metal particle content %) is, when expressed as 1/x, such that x is 300.0 or less.
When x exceeds 300.0, the effect of Zn alloy particle addition toward improvement of corrosion resistance and rust prevention ceases to be observed and x must therefore be made 300.0 or less.
When top priority is placed on corrosion resistance, it is preferable to increase the percentage of Zn alloy particles without limit so that the percentage of Zn metal particles approaches zero. However, in the interest of striking a practical balance between corrosion resistance and economy, the ratio (Zn alloy particle content %):(Zn metal particle content %) is preferably between 1:1 and 1:120. From the aspect of mixing stability, the ratio is preferably between 1:1 and 1:30.
In the present invention, the average grain diameter in the grain-diameter distribution of the Zn metal particles used in the mixture is, from the standpoint of optimizing economy and filling factor, preferably 2 to 50 μm, which is an intermediate grain diameter range in the grain-diameter distribution having two grain diameter frequency peaks.
It is worth noting that addition of general-purpose Zn metal particles of 2 to 50 μm average grain diameter to Zn metal particles having two grain diameter frequency peaks in the grain-diameter distribution makes it possible to achieve better economy while retaining the effect of steel corrosion resistance improvement.
In the present invention, corrosion resistance can be increased by adding one or both of Al and Si to the Zn alloy.
No effect of improving rust prevention performance is obtained when the Al content of the Zn alloy particles is less than 0.01 mass %. When Al is present at content exceeding 30 mass %, it impairs the physical fragmentation property by incorporating Mg in solid solution. Al content is therefore defined as 0.01 to 30 mass %.
From the aspects of rust prevention performance and ease of occurrence of physical fracture facets and/or cracks, Al content is preferably 0.01 to 10 mass %, and when physical fragmentation property is a primary concern, it is preferably 0.01 to 2 mass %
No effect of improving coating film adherence or physical fragmentation property is obtained when the Si content of the Zn alloy particles is less than 0.01 mass %. When Si is present at a content exceeding 3 mass %, corrosion resistance declines. Si content is therefore defined as 0.01 to 3 mass %. In order to maximize coating film adherence and corrosion resistance, Si content is preferably 0.1 to 1 mass %.
The mixing ratio of Al and Si in the coating film need not be defined insofar as the Al and Si contents are within the aforesaid ranges. From the viewpoint of corrosion resistance, the contents are preferably Al: 0.01 to 1.0 mass % and Si: 0.01 to 1.0 mass %.
The Zn alloy particles containing Mg contain intermetallic compounds and can be provided with physical fragmentation faces and/or cracks on their outer surface during the fine alloy particle production process.
The intermetallic compounds are compounds of Mg and Zn combined in simple whole-number ratios. Examples include MgZn2, Mg2Zn11, MgZn, Mg2Zn3, and Mg7Zn3. Among these intermetallic compound, MgZn2 and Mg2Zn11 are particularly preferable from the viewpoint of fragmentation property and corrosion resistance.
Corrosion resistance and rust prevention improve further when the metal particles are not spherical but are physically fragmented into the shape of sphere-like polyhedrons. The sphere-like polyhedrons are quasi-spheres formed by physical fragmentation of spherical particles. Polyhedrons having 2 or more faces are preferable for optimizing the balance among coating film adherence, economy and corrosion resistance. Polyhedrons having 6 or more faces are preferable for corrosion resistance improvement.
Such Zn metal particles and Zn alloy particles are dispersed in a vehicle (liquid binder) to obtain the highly corrosion-resistant, rust-prevention coating material of this invention. Usable vehicles include, for example, inorganic binders such as alkyl silicate and alkali silicate, and organic binders such as epoxy resin, urethane resin, phenoxy resin and polyester resin.
Other liquid binders are also usable, including any of the liquid binders used in zinc-rich paints. The coating material can be either of the emulsion type or the solvent type.
Other ordinary additives can be incorporated within ranges not impairing corrosion resistance For example, when the coating material is to be used to form a corrosion preventive primer coat, a third component such as boron can be added to enhance adherence with the topcoat.
In order to achieve rust prevention capability, the mixing of the Zn metal particles and Zn alloy particles with the binder must be conducted so that the total of fine Zn metal particles or fine-grain Zn alloy particles and coarse-grain Zn metal particles or coarse-grain Zn alloy particles are evenly dispersed in an amount of 30 mass % or greater based on the dry coating film. From the viewpoint of good balance among the three properties of corrosion resistance, workability and cuttablility, the amount dispersed is preferably 40 to 65 mass %.
By keeping the moisture content of the produced coating material at 0.8% or less, it is possible to ensure that the fine-grain and coarse-grain Zn metal particles and the fine-grain and coarse-grain Zn alloy particles maintain their suitable stability and reactivity performance, thereby enabling production of a corrosion preventive coating material excellent in rust prevention.
When the highly corrosion-resistant, rust-prevention coating material according to the present invention is prepared using an inorganic binder such as alkali silicate or alkyl silicate, it is preferable at the time of applying it to a steel plate or other steel material to pretreat the base material to some degree so as to ensure strong adherence.
Although application following treatment with a hand tool or power tool is acceptable, application after blasting is desirable for obtaining high bonding strength.
When an organic binder such as epoxy resin, urethane resin, phenoxy resin or polyester resin is used, good results can be obtained by direct application to the steel plate or material. However, a coated steel plate or the like having still more excellent corrosion resistance can be obtained by subjecting the surface to blasting, phosphating or chromating beforehand.
The reason for defining the lower limit of coating thickness as 2 μm is that a coated material of adequate corrosion resistance and rust prevention cannot be obtained when the coating is thinner than 2 μm. Although rust prevention improves with increasing coat thickness, the upper limit of coating thickness must be set at 700 μm from the viewpoint of adherence performance and for preventing coat cracking after drying and coating material sagging during application.
For optimum coat performance and economy, the preferred range of coat thickness is 5 to 50 μm in combination with an inorganic binder and 5 to 100 μm in combination with an organic binder.
Moreover, with regard to the distribution of 0.05 to 5 μm grain diameter Zn alloy particles in the coating, corrosion resistance and rust prevention tend to improve when the content ratio of Zn alloy particles of a grain diameter of 0.05 to 5 μm in an outermost 10% thickness surface layer region of the dry film is high. In order to secure this corrosion resistance and rust prevention improving effect without fail, the content ratio of Zn alloy particles of a grain diameter of 0.05 to 5 μm in the outermost 10% thickness surface layer region of the dry film should be made twice or greater the content ratio of the Zn alloy particles of a grain diameter of 0.05 to 5 μm in the whole dry film. This markedly increases the high corrosion resistance and rust prevention effect of the coating film when it is applied to a steel.
EXAMPLES
Concrete embodiments of the present invention are explained in the following.
First Set of Examples
The grain-diameter distribution and average diameter of the Zn metal particles and Zn alloy particles, and the total volume percentage of particles in the 0.05 to 5 μm grain-diameter range were determined by laser scattering particle distribution analysis.
Therefore, grain diameter was evaluated as equivalent spherical diameter and volume percentage was evaluated as the equivalent spherical volume of the particles.
A histogram for evaluating grain diameter-distribution was drawn by representing grain diameters of 0.05 μm and greater on the horizontal axis and representing the proportion of the number of particles whose grain diameters fell in grain-diameter intervals dn to dn+1 (μm) of 0.05 μm and greater diameter on the vertical axis. Here, dn+1=(1+α) dn, where n is a natural number and α is for convenience defined as 0.09 to 0.1.
The peak value was determined from this grain-diameter histogram. In the case where grain diameter is represented as equivalent spherical diameter and grain diameter is represented logarithmically, this method makes possible to draw a histogram that, for instance, has the 1 to 10 μm range divided into 25 to 27 equal grain diameter segments.
Specifically, the histogram was created by logarithmically representing grain diameter on the horizontal axis as equivalent spherical diameter, linearly representing in every equivalent spherical diameter segment of dn to less than dn+1 on the vertical axis the frequency fn of the particles contained in the segment as the equivalent spherical volume percentage (%) of the total equivalent spherical volume of all measured particles, plotting fn for every (dn dn+1)1/2, and connecting neighboring plots.
The peak value is therefore the grain diameter (dn dn+1)1/2 at which frequency fn exhibits maximum value.
The grain-diameter distribution and average grain diameter of particles of 0.01 to 0.05 μm average diameter were determined by laser scattering particle distribution analysis using an analyzer equipped with an ultraviolet semiconductor laser.
As termed with respect to the present invention, “fine grains” means grains that, as determined by grain-diameter distribution measurement using laser scattering particle distribution analysis, are Zn metal particles or Zn alloy particles of 0.05 to 5 μm peak grain diameter or 0.01 to 5 μm average diameter having a grain-diameter frequency distribution with a single peak and a tail on either side of the peak. The term “coarse grains” means grains that are Zn metal particles or Zn alloy particles of 6 to 100 μm peak grain diameter or 6 to 100 μm average grain diameter having a grain-diameter frequency distribution with another single peak and a tail on either side of the peak.
Grain diameter distributions obtained in Examples are shown in Tables 1 to 172 as expressed in either peak grain diameter or average grain diameter.
The state of Zn metal particles and Zn alloy particles was determined by observing 50 to 100 randomly extracted particles using a scanning electron microscope equipped with a field emission electron gun.
Particle fragmentation (fracture) facets and cracked surfaces were observed with a scanning electron microscope. Zn alloy particles in particular were examined for Zn and Mg distribution state and the atomic concentration ratios of the elements by mapping analysis using an energy-dispersive X-ray analyzer attached to a scanning electron microscope. It was checked whether Zn—Mg intermetallic compounds were present and the element ratios of those found were examined.
Presence of Zn—Mg intermetallic compounds and their types were determined based on the shape of the secondary electron image, color and shape of the backscattered electron image, the mapping analysis image, the result of Zn and Mg atomic concentration ratio measurement, and result of Zn alloy particle X-ray diffraction analysis.
Specifically, Zn alloy particles for which presence of MgZn2, Mg2Zn11 or Mg2Zn3 was ascertained from the X-ray diffraction analysis results were measured with an energy-dispersive X-ray analyzer for physical fragmentation (fracture) facets on the surfaces of particles of 5 μm or greater grain diameter, MgZn2, Mg2Zn11, or Mg2Zn3 was identified from the results of the Zn and Mg atomic concentration ratio measurement, and the shape and color thereof was ascertained from the secondary electron image and backscattered electron image of the surface thereof.
In the case of the surface of a fine particle of less than 5 μm grain diameter which, because of its small size, could not be accurately measured for element ratio with an energy-dispersive X-ray analyzer, presence of MgZn2, Mg2Zn11 or Mg2Zn3 was inferred by comparing the secondary electron image and backscattered electron image with the secondary electron image and backscattered electron image of a region other than a physical fragmentation face.
On the other hand, in the case of Zn alloy particles having an Mg concentration of 20 to 30 mass %, MgZn and Mg7Zn3 were determined from the results of the atomic concentration ratio measurement.
FIG. 1 shows the grain-diameter distribution of Zn metal particles contained in a conventional zinc-rich primer, which can be considered to be typical of the Comparative Examples. FIG. 2 shows the grain-diameter distribution of Zn metal particles contained in a highly corrosion-resistant, rust-prevention coating material typical of the present invention.
The grain-diameter distribution of the conventional zinc-rich primer shown in FIG. 1 has a grain-diameter frequency peak at around 10 μm. In contrast, the grain-diameter distribution of the Invention Example shown in FIG. 2, while also having one grain-diameter frequency peak similar to that of the Comparative Example at around 10 μm, further has another grain-diameter frequency peak located 2 to 3 μm toward the fine-grain side from that of the Comparative Example.
In Comparative Examples 1 to 18 shown in Table 1, almost all of the particles are accounted for by spherical Zn metal particles of around 5 to 10 μm grain diameter produced by the mist processes. On the other hand, in all of the Invention Examples shown in Tables 2 to 5 and in Comparative Examples 19 to 49 shown in Tables 2 and 3, it can be seen that, with respect to the Zn metal particles and Zn alloy particles, the particles exhibiting two grain-diameter distributions had fragmentation (fracture) facets or cracks and were non-spherical, generally granular polyhedral particles of nearly spherical shape.
When the fragmentation (fracture) facets and cracked faces of the Zn alloy particles of the Invention Examples were observed as backscattered electron images, they were found to be divided into black regions with high Mg and white regions with low Mg content. An analysis of the black regions at the fragmentation faces and cracks of the particles of 5 μm or greater grain diameter revealed the presence of intermetallic compounds, chiefly of MgZn2 and Mg2Zn11 but in some cases Mg2Zn3, MgZn and Mg7Zn3.
Second Set of Examples
Coated test pieces were prepared as Comparative Examples and Invention Examples under the conditions indicated in Tables 1 to 172. The Comparative Examples are shown in Tables 1 to 5 and the Invention Examples in Tables 6 to 172. The coating materials of the respective examples were prepared by ordinary methods. In all Comparative Examples and Invention Examples of Tables 1 to 3, Tables 6 to 22, Tables 43 and 44, and Tables 79 and 80, two types were separately prepared using either a commercially available ethylene silicate resin inorganic binder or a commercially available urethane resin organic binder.
In the Examples of Tables 4 and 5, Tables 23 to 42, Tables 45 to 78, Tables 81 to 98, and Tables 99 to 172, various resins were used as binders and the type of resin used in each Example is indicated.
All coating materials had a moisture content of 0.8 mass % or less. The thicknesses of the dried coats are given in the Tables.
Corrosion resistance was assessed by conducting the salt spray test of JIS K 5600 (5% NaCl spray; 35° C.). Coating test pieces measuring 150×70×3.2 mm were used. The bottom of each test piece was formed with an X-cut using a cutter. The evaluation adopted in the corrosion test was time to occurrence of red rust from the test piece surface. The test results are shown in the tables.
When time to red rusting was less than 900 hours, corrosion resistance was rated Poor and designated by the symbol P in the tables. When time to red rusting was 900 hours to less than 2,000 hours, corrosion resistance was rated acceptable (Good) and designated by the symbol G in the tables. When time to red rusting was 2,000 hours or greater, corrosion resistance was rated particularly good within the acceptable range (Excellent) and designated by the symbol E in the tables.
In comparison with the Comparative Examples 1 to 30, the Invention Examples exhibited outstanding corrosion resistance as evidenced by marked suppression of red rusting.
Tables 43 to 78 show corrosion test results with presence/absence on the particle surfaces of Mg solid solution phase and Zn intermetallic compounds, and presence/absence of MgZn2 or Mg2Zn11.
It can be seen from Tables 43 to 78 that presence of Mg solid solution phase and Zn—Mg intermetallic compounds on the particle surfaces inhibited red rusting and that red rusting was markedly inhibited when the intermetallic compounds were MgZn2 and/or Mg2Zn11 and in some cases MgZn2, Mg2Zn11, Mg2Zn3, MgZn and/or Mg7Zn3.
Tables 79 to 98 show the corrosion test results obtained when the ratio of all particles accounted for by Zn alloy particles of a grain diameter of 0.05 to 5 μm in an outermost 10% thickness surface layer region of the dry film was varied.
The ratio of Zn alloy particles of a grain diameter of 0.05 to 5 μm in the outermost 10% thickness surface layer region was varied by applying coating materials varied in the ratio of Zn alloy particles of a grain diameter of 0.05 to 5 μm at the final stage of the coating.
It can be seen from Tables 79 to 98 that red rusting was markedly inhibited when the ratio of all particles accounted for by Zn alloy particles of a grain diameter of 0.05 to 5 μm in the outermost 10% thickness surface layer region was twice or greater the ratio in the whole dry film.
Tables 99 to 172 relate to Invention Examples in which Zn metal particles comprising Zn and unavoidable impurities and having a grain-diameter distribution whose peak grain diameter or average grain diameter was 2 to 50 μm were later added to and mixed with fine-grain Zn metal particles and coarse-grain Zn metal particles, or fine-grain Zn alloy particles and coarse-grain Zn alloy particles of Invention Examples, the mixed particles were used to prepare highly corrosion-resistant, rust-prevention coating materials, and the prepared coating materials were applied to steels and dried. The tables show the results of corrosion tests conducted on the so-prepared coated steels.
The results of the evaluation are shown in the Corrosion Test Results column. When time to red rusting was less than 900 hours, corrosion resistance was rated Poor and designated by the symbol P. When time to red rusting was 900 hours to less than 2,000 hours, corrosion resistance was rated acceptable (Good) and designated by the symbol G in the tables. When time to red rusting was 2,000 hours or greater, corrosion resistance was rated particularly good within the acceptable range (Excellent) and designated by the symbol E in the tables.
It can be seen from Tables 99 to 172 that when the coating material was prepared from Zn alloy particles having a grain-diameter distribution with two (fine particle and coarse particle) peaks and Zn metal particles having a grain-diameter distribution with only one peak falling between those of the fine particles and coarse particles, excellent corrosion resistance was exhibited in the case where the ratio, in mass % based on the dry coating film, of (Zn alloy particle content %):(Zn metal particle content %) was, expressed as 1/x, such that x was 300.0 or less.
It can also be seen that corrosion resistance was excellent even when Zn metal particles of 2 to 50 μm average grain diameter were later added to the fine-grain Zn metal particles and coarse-grain Zn metal particles.















TABLE 1










Metal grain
Percent of








diameter
fine-grain

Total




distribution
metal
Metal grain
metal



Average
(Ave grain
grains
chemical
grain
Coat














Comparative
grain
diameter) (μm))
among metal
component content
content of
thickness
Time to















Example
diameter
Fine grain
Coarse
grains
(Mass %)
coat
(μm)
red rusting




















No.
(μm)
metal
grain metal
(Vol %)
Zn
Mg
Al
Si
(Mass %)
Inorganic
Organic
Inorganic
Organic
























Prior Art
1
4.77
—
—
—
100
0
0
0
33
15.6
5
P
P


Product
2
4.89
—
—
—
100
0
0
0
36
20.3
14
P
P



3
5.05
—
—
—
100
0
0
0
39
24.5
50
P
P



4
4.00
—
—
—
100
0
0
0
37
16
100
P
P



5
5.11
—
—
—
100
0
0
0
32
55
150
P
P



6
5.23
—
—
—
100
0
0
0
38
45
160
P
P



7
5.39
—
—
—
100
0
0
0
47
65
170
P
P



8
4.34
—
—
—
100
0
0
0
51
38
134
P
P



9
4.32
—
—
—
100
0
0
0
52
42
167
P
P



10
4.44
—
—
—
100
0
0
0
53
25
38
P
P



11
4.60
—
—
—
100
0
0
0
49
32
268
P
P



12
3.55
—
—
—
100
0
0
0
48
25
256
P
P



13
4.66
—
—
—
100
0
0
0
46
36
234
P
P



14
4.78
—
—
—
100
0
0
0
86
19
243
P
P



15
6.54
—
—
—
100
0
0
0
88
28.6
132
P
P



16
6.38
—
—
—
100
0
0
0
89
27
124
P
P



17
4.58
—
—
—
100
0
0
0
90
195
87
P
P



18
15.2
—
—
—
100
0
0
0
85
23
95
P
P























TABLE 2









Metal grain








diameter
Percent of



distribution
fine-grain



(Ave grain
metal

Total metal



diameter) (μm))
grains
Metal grain chemical
grain
Coat















Comparative
Average

Coarse
among metal
component content
content of
thickness
Time to


Example
grain diameter
Fine grain
grain
grains
(Mass %)
coat
(μm)
red rusting




















No.
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
(Mass %)
Inorganic
Organic
Inorganic
Organic
























Other
19
Deficient fine
5.6
12.8
42.04
94.5
5.5


50
23
97
P
P




metal grains in




invention range



20
Deficient fine
0.005
6.4
38.41
93.2
6.8


30
18
94
P
P




metal grains in




invention range



21
Deficient fine
0.007
7.8
66.80
95.6
3.2
1.2

31
38
78
P
P




metal grains in




invention range



22
Deficient fine
0.008
13.5
76.50
87.6
4.7
5.7
2.0
42
42
213
P
P




metal grains in




invention range



23
Deficient fine
5.1
121
43.60
94.6
5.4


38
55
93
P
P




metal grains in




invention range



24
Deficient fine
5.6
113
34.20
78.4
15.6
3.0
3.0
53
16
97
P
P




metal grains in




invention range



25
Deficient fine
0.005
134
5.95
90.0
10.0


66
55
99
P
P




metal grains in




invention range



26
Deficient fine
5.3
103
6.43
80.5
15.3
4.2

77
45
102
P
P




metal grains in




invention range



27
Deficient fine
0.006
105
78.90
91.5
7.5

1.0
54
16
105
P
P




metal grains in




invention range



28
Deficient fine
4.5
125
44.12
95.7
3.5
0.1
0.8
39
19
177
P
P




metal grains in




invention range



29
Deficient fine
3.6
113
5.70
82.2
17.8


35
23
99
P
P




metal grains in




invention range



30
Deficient fine
2.7
105
67.80
91.9
3.6
2.7
1.8
65
16
56
P
P




metal grains in




invention range



31
Deficient fine
0.5
101
14.70
70.8
26.7
2.5

55
8
100
P
P




metal grains in




invention range























TABLE 3









Metal grain








diameter



distribution
Percent of



(Ave
fine-grain

Total



grain diameter)
metal

metal



(μm))
grains
Metal grain chemical
grain
Coat















Comparative
Average
Fine
Coarse
among metal
component content
content of
thickness
Time to


Example
grain diameter
grain
grain
grains
(Mass %)
coat
(μm)
red rusting




















No.
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
(Mass %)
Inorganic
Organic
Inorganic
Organic
























Other
32
Deficient
2.58
9.45
3.65
94.5
5.5


75
35
87
P
P




mixing ratio



33
Deficient
2.37
9.61
4.65
93.0
5.5
1.5

76
38
95
P
P




mixing ratio



34
Deficient
2.15
9.85
99.80
94.1
5.9


72
65
123
P
P




mixing ratio



35
Deficient
2.94
9.36
2.65
85.6
9.8
4.6

79
37
125
P
P




mixing ratio



36
Deficient
2.55
12.5
1.45
93.5
4.5
1.0
1.0
65
13
99
P
P




mixing ratio



37
Deficient coat
2.65
8.56
34.60
96.1
3.9

0.8
10
54
94
P
P




metal grains



38
Deficient coat
2.94
8.21
86.53
97.5
2.5

2.5
16
49
146
P
P




metal grains



39
Deficient coat
2.58
8.33
64.58
94.5
5.5
2.5
1.5
9
150
146
P
P




metal grains



40
Deficient
2.63
10.9
35.70
68.5
31.5


55
14
125
P
P




mixing ratio



41
Deficient
1.87
8.9
43.70
70.8
17.8
11.4

12
17
175
P
P




mixing ratio



42
Deficient
3.86
9.8
21.60
99.995
0.005


56
22
200
P
P




mixing ratio



43
Deficient
3.7
65.8
43.70
80.5
14.6

4.9
53
25
187
P
P




mixing ratio



44
Deficient
2.8
16.9
55.40
96.4
0.007

3.6
65
32
174
P
P




mixing ratio



45
Deficient
3.9
10.99
13.90
49.1
31.9
9.4
9.6
32
25
76
P
P




mixing ratio



46
Deficient
4.2
14.97
44.12
56.7
25.6
11.8
5.9
83
42
260
P
P




mixing ratio



47
Deficient
3.55
7.89
14.60
64.4
35.6


55
25
155
P
P




mixing ratio



48
Deficient
2.45
10.5
87.90
57.5
31.6

10.9
12
14
167
P
P




mixing ratio



49
Deficient
1.45
15.6
24.60
32.2
67.8


34
17
145
P
P




mixing ratio
























TABLE 4















Ratio of (Zn









metal grains





Percent



or Zn alloy




Diameter
of fine-



grains):(Later-




distribution
grain



added



Average
(peak
metal



Zn metal



diameter
diameter) of
grains

Zn alloy

grains)
















of
Zn metal
among Zn

grain

Zn




later-
grains/Zn
metal
Chemical component content
fracture

metal
Later-



added Zn
alloy grains
grains/
of Zn metal grains/Zn
surfaces

grains/
added


Comparative
metal
(μm)
Zn alloy
alloy grains
or
Ave
Zn
Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
cracks
aspect
alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





50
—
5.6
12.8
5.66
70.7
27.5
1
0.8
Yes
1.12
—
—


51
—
0.005
6.4
16.55
94.6
2.9
0
2.5
Yes
1.38
—
—


52
—
0.007
7.8
21.55
94
4.5
0
1.5
Yes
1.22
—
—


53
—
0.008
13.5
5.66
99.43
0.07
0
0.5
Yes
1.14
—
—


54
—
5.1
121
33.66
96.82
3.1
0.04
0.04
Yes
1.02
—
—


55
—
5.6
113
45.65
100
0
0
0
Yes
1.05
—
—


56
—
0.005
134
49.88
68.84
29.5
0.06
1.6
Yes
1.36
—
—


57
—
5.3
103
42.33
92.33
7.6
0.07
0
No
1.11
—
—


58
—
0.006
105
65.44
100
0
0
0
Yes
1.07
—
—


59
—
4.5
125
77.55
91.8
4.6
1.8
1.8
Yes
1.42
—
—


60
—
3.6
113
96.55
82
8.3
9.2
0.5
Yes
1.38
—
—


61
—
2.7
105
5.97
88.2
11.8
0
0
No
1.22
—
—


62
—
0.5
101
87.77
86.06
12.9
0
1.04
No
1.14
—
—


63
—
2.45
11.1
3.65
99.34
0.6
0
0.06
Yes
1.13
—
—


64
—
1.85
8.92
4.65
96.82
3.1
0.04
0.04
Yes
1.02
—
—


65
—
1.65
9.23
99.80
96.82
3.1
0.04
0.04
Yes
1.50
—
—


66
—
2.45
9.05
2.65
100
0
0
0
No
1.13
—
—


67
—
2.01
10.91
67.89
96.82
3.1
0.04
0.04
Yes
1.04
—
—


68
—
1.99
11.12
56.89
96.82
3.1
0.04
0.04
Yes
1.02
—
—


69
—
2.38
10.93
45.67
100
0
0
0
Yes
1.08
—
—


70
—
2.49
9.34
34.67
68.5
31.5


No
1.15
—
—


71
—
2.34
8.77
95.66
70.8
17.8
11.4

No
1.34
—
—













Coating details

















Mg
Total








content
metal




of all
grain



Comparative
metal
content
Base
Coat



Example
grains
of coat
resin
thickness
Coating




No
(Mass %)
(Mass %)
type
(μm)
method
Corrosion Test Results







50
—
35
Alkali-silicate
2
Spray
P



51
—
66
Alkyl silicate
37
Spray
P



52
—
38
Alkali-silicate
12
Spray
P



53
—
84
Alkyl silicate
160
Brush
P



54
—
39
Alkali-silicate
5
Brush
P



55
—
85
Alkyl silicate
12
Brush
P



56
—
36
Alkali-silicate
2
Spray
P



57
—
56
Alkyl silicate
18
Spray
P



58
—
42
Alkyl silicate
23
Spray
P



59
—
31
Epoxy resin
30
Brush
P



60
—
88
Acrylic resin
77
Brush
P



61
—
78
Urethane resin
254
Brush
P



62
—
36
Polyester resin
47
Spray
P



63
—
37
Epoxy resin
43
Spray
P



64
—
45
Acrylic resin
322
Brush
P



65
—
68
Urethane resin
25
Brush
P



66
—
79
Polyester resin
700
Brush
P



67
—
10
Alkali-silicate
22
Spray
P



68
—
16
Acrylic resin
25
Spray
P



69
—
9
Alkali-silicate
14
Spray
P



70
—
90
Urethane resin
112
Spray
P



71
—
43
Alkali-silicate
554
Spray
P























TABLE 5










Percent







Diameter
of fine-




distribution
grain



Average
(peak
metal



diameter
diameter) of
grains

Zn alloy



of
Zn metal
among Zn

grain



later-
grains/Zn
metal
Chemical component content
fracture



added Zn
alloy grains
grains/
of Zn metal grains/Zn
surfaces


Comparative
metal
(μm)
Zn alloy
alloy grains
or
Ave














Example
grains
Fine
Coarse
grains
(Mass %)
cracks
aspect

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio





72
—
3.99
27.6
34.21
100
0.005


Yes
1.25


73
—
1.02
21.9
7.88
80.5
14.6

4.9
Yes
1.19


74
—
0.05
22.5
92.32
96.4
0.007

3.6
Yes
1.18


75
—
2.01
17.5
11.22
49.1
31.9
9.4
9.6
No
1.24


76
—
1.51
6.99
55.66
56.7
25.6
11.8
5.9
Yes
1.11


77
—
2.38
7.65
78.99
64.4
35.6


Yes
1.27


78
—
2.35
9.25
35.87
57.5
31.6

10.9
Yes
1.31


79
—
2.57
9.56
42.04
32.2
67.8


No
1.26


80
23.5
1.99
11.12
95.66
80.5
14.6

4.9
Yes
1.02


81
5.96
2.38
10.93
34.21
96.4
0.007

3.6
Yes
1.50


82
10.64
2.49
9.34
7.88
49.1
31.9
9.4
9.6
No
1.13


83
16.5
0.006
105
92.32
86.06
12.9
0
1.04
Yes
1.04


84
7.95
4.5
125
11.22
99.34
0.6
0
0.06
Yes
1.02


85
7.95
1.02
21.9
4.65
96.82
3.1
0.04
0.04
Yes
1.08


86
9.64
0.05
22.5
99.80
91.8
4.6
1.8
1.8
No
1.15


87
0.96
2.01
17.5
95.66
82
8.3
9.2
0.5
Yes
1.02


88
5.26
1.51
6.99
34.21
88.2
11.8
0
0
Yes
1.50


89
13.5
2.38
7.65
7.88
86.06
12.9
0
1.04
No
1.13


90
13.5
2.35
9.25
92.32
99.34
0.6
0
0.06
Yes
1.04


91
9.64
2.57
9.56
11.22
96.82
2.4
0.04
0.04
Yes
1.02


92
16.5
2.35
9.25
55.66
99.5
0.5
0
0
Yes
1.08


93
58.2
2.57
9.56
78.99
99.34
0.6
0
0.06
Yes
1.15















Ratio of (Zn






metal grains



or Zn alloy



grains):(Later-



added



Zn metal



grains)

Coating details
















Zn

Mg
Total







metal
Later-
content
metal



grains/
added
of all
grain


Comparative
Zn
Zn
metal
content
Base
Coat

Corrosion


Example
alloy
metal
grains
of coat
resin
thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results





72
—
—
—
38
Urethane resin
150
Spray
P


73
—
—
—
56
Alkali silicate
18
Spray
P


74
—
—
—
89
Alkyl silicate
657
Brush
P


75
—
—
—
32
Alkyl silicate
24
Spray
P


76
—
—
—
55
Urethane resin
99
Spray
P


77
—
—
—
79
Alkyl silicate
7
Spray
P


78
—
—
—
49
Epoxy resin
100
Spray
P


79
—
—
—
89
Alkyl silicate
27
Brush
P


80
1
387
1.867
43
Alkali silicate
15
Spray
P


81
1
198.7
0.047
38
Alkyl silicate
14
Spray
P


82
1
36
0.500
56
Urethane resin
55
Spray
P


83
1
1.5
0.012
89
Alkyl silicate
8
Spray
P


84
1
0.008
1.587
32
Urethane resin
122
Brush
P


85
1
1.4
2.833
55
Alkyl silicate
555
Spray
P


86
1
4.2
2.673
79
Alkali silicate
19
Spray
P


87
1
1.6
0.731
10
Alkyl silicate
25
Brush
P


88
1
7.5
0.671
16
Alkyl silicate
58
Spray
P


89
1
1.6
3.538
9
Alkyl silicate
685
Spray
P


90
1
385
0.002
49
Alkali silicate
19
Brush
P


91
1
270
0.009
89
Urethane resin
700
Spray
P


92
1
195
0.003
89
Alkyl silicate
77
Spray
P


93
1
2.9
0.154
79
Alkyl silicate
54
Spray
P























TABLE 6








Diameter









distribution



of Zn metal
Percent of fine
Chemical



grains/Zn alloy
grain metal
component content
Zn alloy
Total



grains (Ave grain
grains among Zn
of Zn metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thikness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























1
2.65
9.56
5.66
100
0
0
0
No
35
22
120
G
G


2
0.05
6.50
16.55
100
0
0
0
No
66
18
77
G
G


3
4.6
65.50
21.55
100
0
0
0
No
38
23
85
G
G


4
3.56
13.50
5.66
100
0
0
0
No
84
25
126
G
G


5
4.55
16.70
33.66
100
0
0
0
No
39
15
145
G
G


6
2.15
9.89
45.65
100
0
0
0
No
85
19
120
G
E


7
3.22
10.55
49.88
100
0
0
0
No
36
24
110
G
G


8
2.99
9.64
42.33
100
0
0
0
No
56
15
105
G
G


9
3.65
11.22
65.44
100
0
0
0
No
42
10
99
G
G


10
4.55
13.50
77.55
100
0
0
0
No
31
7
120
G
G


11
3.57
22.50
96.55
100
0
0
0
No
88
5.5
85
G
G


12
1.99
8.56
5.97
100
0
0
0
No
78
17
102
G
E


13
2.12
9.46
87.77
100
0
0
0
No
36
22
99
G
G


14
2.45
11.10
86.55
100
0
0
0
No
37
26
134
G
G


15
1.85
8.92
15.67
100
0
0
0
No
45
21
156
G
G


16
1.65
9.23
31.55
100
0
0
0
No
68
17
121
G
E


17
2.45
9.05
26.76
100
0
0
0
No
79
6
109
G
E


18
2.01
10.91
67.89
100
0
0
0
No
47
10
89
G
G


19
1.99
11.12
56.89
100
0
0
0
No
56
21
94
G
G


20
2.38
10.93
45.67
100
0
0
0
No
37
34
103
G
G























TABLE 7








Diameter distribution of
Percent of fine
Chemical







Zn metal grains/Zn alloy
grain metal
component content
Zn alloy
Total



grains (Ave grain
grains among Zn
of Zn metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























21
2.49
9.34
34.67
100
0
0
0
No
90
21
111
G
E


22
2.34
8.77
95.66
100
0
0
0
No
43
18
90
G
G


23
3.99
27.60
34.21
100
0
0
0
No
38
19
109
G
G


24
1.02
21.90
7.88
100
0
0
0
No
56
21
89
G
G


25
0.05
22.50
92.32
100
0
0
0
No
89
17
99
G
G


26
2.01
17.50
11.22
100
0
0
0
No
32
14
89
G
G


27
1.51
6.99
55.66
100
0
0
0
No
55
16
134
G
G


28
2.38
7.65
78.99
100
0
0
0
No
79
21
120
G
E


29
2.35
9.25
35.87
96.0
4.0
0
0
Yes
47
20.3
189
E
E


30
2.57
9.56
42.04
97.5
2.5
0
0
Yes
49
24.5
167
G
G


31
2.56
9.84
6.55
98.4
1.6
0
0
Yes
52
16
156
G
G


32
2.21
9.75
43.60
95.5
4.5
0
0
Yes
51
55
203
E
E


33
2.64
9.85
44.12
96.2
3.8
0
0
No
53
45
206
G
G


34
1.99
8.56
37.21
98.0
2.0
0
0
Yes
78
65
214
E
E


35
2.94
8.21
43.38
94.5
5.5
0
0
Yes
83
38
256
E
E


36
2.58
8.33
13.52
94.0
6.0
0
0
No
89
42
215
E
E


37
2.37
8.00
44.94
97.5
2.5
0
0
Yes
90
25
245
E
E


38
2.15
9.22
45.46
93.2
6.8
0
0
Yes
86
32
167
E
E


39
2.96
9.36
35.96
94.5
5.5
0
0
Yes
53
25
158
G
G


40
2.85
9.45
42.13
93.6
6.4
0
0
No
48
36
169
G
G























TABLE 8








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among Zn
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























41
2.94
9.61
7.56
94.1
5.9
0
0
Yes
46
19
145
G
G


42
2.11
9.85
43.69
93.5
6.5
0
0
Yes
47
28.6
167
E
E


43
2.68
9.23
44.21
97.6
2.4
0
0
Yes
49
27
169
G
G


44
2.99
9.08
39.51
94.5
5.5
0
0
Yes
83
195
160
E
E


45
2.78
9.87
45.68
96.8
3.2
0
0
No
85
23
159
E
E


46
2.96
9.46
65.58
95.4
4.6
0
0
No
90
23
157
E
E


47
2.85
9.28
47.24
94.8
5.2
0
0
Yes
89
18
146
E
E


48
2.64
9.45
47.76
97.5
2.5
0
0
Yes
88
55
148
E
E


49
2.35
9.25
45.02
90.0
10.0
0
0
No
47
19
123
E
E


50
2.12
9.46
47.02
92.5
7.5
0
0
Yes
47
42
213
E
E


51
2.34
9.46
7.66
91.6
8.4
0
0
No
52
19
215
E
E


52
2.33
9.46
15.20
90.8
9.2
0
0
No
52
28.6
224
E
E


53
2.23
9.06
43.16
88.5
11.5
0
0
Yes
52
27
267
E
E


54
2.12
9.30
49.33
87.5
12.5
0
0
Yes
88
195
243
E
E


55
2.21
8.68
19.47
92.4
7.6
0
0
Yes
87
23
74
E
E


56
1.38
8.53
69.55
91.6
8.4
0
0
Yes
89
23
63
E
E


57
1.95
9.32
51.41
91.1
8.9
0
0
Yes
90
28.6
65
E
E


58
2.26
8.95
75.88
90.6
9.4
0
0
Yes
91
27
98
E
E


59
2.05
12.54
48.08
86.5
13.5
0
0
Yes
46
195
98
G
G


60
1.65
8.70
66.85
92.5
7.5
0
0
Yes
47
23
97
E
E























TABLE 9








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among Zn
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























61
2.35
8.55
7.68
91.1
8.9
0
0
Yes
47
23
94
E
E


62
1.62
8.91
8.64
90.6
9.4
0
0
Yes
49
18
93
E
E


63
1.88
9.91
16.58
89.4
10.6
0
0
Yes
50
55
75
G
G


64
2.35
9.25
35.87
96.0
4.0
0
0
Yes
47
16.5
64
E
E


65
2.57
9.56
42.04
97.5
2.5
0
0
Yes
48
25.4
62
G
G


66
2.56
9.84
38.41
98.4
1.6
0
0
Yes
49
5.8
64
G
G


67
2.21
9.75
6.99
95.5
4.5
0
0
Yes
51
42.5
75
E
E


68
2.64
9.85
44.12
96.2
3.8
0
0
Yes
52
15.6
73
G
G


69
2.65
8.56
66.99
98.0
2.0
0
0
Yes
88
8.4
65
E
E


70
2.94
8.21
43.38
94.5
5.5
0
0
Yes
89
17.6
75
E
E


71
2.58
8.33
39.75
94.0
6.0
0
0
Yes
87
19.8
73
E
E


72
2.37
8.00
65.38
97.5
2.5
0
0
Yes
85
22.5
78
E
E


73
2.15
9.22
45.46
93.2
6.8
0
0
Yes
83
24.6
125
E
E


74
2.96
9.36
22.55
94.5
5.5
0
0
Yes
46
23.8
167
G
G


75
2.85
9.45
42.13
93.6
6.4
0
0
Yes
48
15.2
28
G
G


76
2.94
9.61
38.50
94.1
5.9
0
0
Yes
51
10.6
34
G
G


77
2.11
9.85
64.13
93.5
6.5
0
0
Yes
51
10.7
256
E
E


78
2.68
9.23
44.21
97.6
2.4
0
0
Yes
51
15
24
G
G


79
2.99
9.08
39.51
94.5
5.5
0
0
Yes
88
10.5
96
E
E


80
1.82
2.87
78.64
96.8
3.2
0
0
No
87
14.5
94
E
E























TABLE 10








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among Zn
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























81
1.42
9.46
42.05
95.4
4.6
0
0
No
85
12.3
93
E
E


82
2.12
9.28
64.58
94.8
5.2
0
0
No
82
8.6
95
E
E


83
1.92
9.45
47.76
97.5
2.5
0
0
Yes
86
17.5
92
E
E


84
2.11
9.63
24.10
96.3
3.7
0
0
Yes
45
12.6
95
E
E


85
2.97
9.16
39.11
94.5
5.5
0
0
Yes
48
10.4
91
G
G


86
2.36
10.39
19.65
95.5
4.5
0
0
Yes
50
10.9
90
E
E


87
3.05
10.56
65.39
97.3
2.7
0
0
Yes
51
19
99
G
G


88
2.15
10.74
48.57
95.8
4.2
0
0
Yes
51
25.6
98
E
E


89
2.19
10.27
24.91
94.6
5.4
0
0
Yes
79
28.6
97
E
E


90
2.48
11.50
39.92
94.7
5.3
0
0
No
81
24.7
94
E
E


91
2.85
11.67
22.65
94.8
5.2
0
0
No
80
22.9
93
E
E


92
2.75
11.85
66.20
96.1
3.9
0
0
No
82
52.3
83
E
E


93
2.46
11.38
49.38
97.5
2.5
0
0
Yes
83
56.3
88
E
E


94
2.71
12.61
30.58
94.0
6.0
0
0
Yes
46
33.3
89
G
G


95
2.36
12.78
45.59
95.0
5.0
0
0
Yes
48
34.5
87
G
G


96
2.16
9.57
28.32
97.2
2.8
0
0
Yes
51
23.5
86
E
E


97
2.46
9.81
71.87
99.5
0.5
0
0
Yes
53
26.7
85
E
E


98
2.49
8.43
53.05
94.6
5.4
0
0
Yes
54
38.5
89
E
E


99
2.95
8.55
27.74
96.5
3.5
0
0
Yes
88
45.2
84
E
E


100
2.36
8.22
42.75
96.7
3.3
0
0
Yes
89
36.9
88
E
E























TABLE 11








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among Zn
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























101
2.21
9.44
23.29
96.5
3.5
0
0
No
90
35.8
86
E
E


102
2.25
9.58
61.12
95.5
4.5
0
0
Yes
86
34.2
85
E
E


103
2.44
9.67
44.30
95.8
4.2
0
0
Yes
85
31.2
83
E
E


104
2.78
9.83
23.96
96.4
3.6
0
0
Yes
46
37.5
82
G
G


105
2.15
10.07
44.09
95.7
4.3
0
0
Yes
47
12.5
81
E
E


106
2.19
9.45
24.63
95.8
4.2
0
0
Yes
47
10.2
89
E
E


107
2.48
9.30
62.46
96.8
3.2
0
0
Yes
48
14.5
96
E
E


108
2.59
9.99
45.64
97.1
2.9
0
0
Yes
50
16.3
95
G
G


109
2.47
9.58
25.30
96.3
3.7
0
0
Yes
86
15.8
99
E
E


110
2.69
9.40
42.84
94.2
5.8
0
0
Yes
84
13.5
100
E
E


111
2.57
9.57
25.44
95.6
4.4
0
0
Yes
83
12.7
123
E
E


112
2.49
9.54
63.27
97.8
2.2
0
0
Yes
82
11.2
89
E
E


113
2.68
9.58
46.45
94.5
5.5
0
0
Yes
81
16.5
87
E
E


114
2.35
9.25
46.45
90.0
10.0
0
0
Yes
46
10.6
86
E
E


115
2.48
10.04
50.91
92.5
7.5
0
0
No
47
10.7
84
E
E


116
2.13
11.27
27.25
91.6
8.4
0
0
Yes
48
15
89
E
E


117
1.93
11.44
42.26
90.8
9.2
0
0
Yes
51
10.5
100
E
E


118
2.05
8.90
33.69
88.5
11.5
0
0
Yes
53
14.5
87
G
G


119
1.42
8.75
48.70
87.5
12.5
0
0
Yes
88
12.3
89
E
E


120
1.46
9.44
29.24
92.4
7.6
0
0
Yes
85
8.6
85
E
E























TABLE 12








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among Zn
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























121
1.75
9.03
67.07
91.6
8.4
0
0
Yes
83
17.5
83
E
E


122
1.86
8.85
50.25
91.1
8.9
0
0
Yes
82
12.6
86
E
E


123
1.74
8.95
29.91
90.6
9.4
0
0
Yes
83
10.4
88
E
E


124
1.96
12.54
87.50
86.5
13.5
0
0
Yes
47
10.9
80
G
G


125
1.65
8.70
30.58
87.4
12.6
0
0
No
51
19
89
G
G


126
2.35
8.55
68.41
88.5
11.5
0
0
No
52
25.6
89
G
G


127
1.62
10.72
54.59
89.6
10.4
0
0
No
51
28.6
98
G
G


128
2.25
9.90
34.25
89.4
10.6
0
0
No
52
24.7
96
G
G


129
2.36
9.57
37.61
90.6
9.4
0
0
Yes
89
22.9
94
E
E


130
2.24
10.79
45.60
90.3
9.7
0
0
Yes
85
52.3
123
E
E


131
2.46
10.93
46.70
90.2
9.8
0
0
Yes
82
56.3
156
E
E


132
1.56
11.02
41.22
91.5
8.5
0
0
Yes
87
33.3
234
E
E


133
1.24
11.18
45.68
86.5
13.5
0
0
Yes
88
34.5
278
E
E


134
1.68
11.42
22.02
85.5
14.5
0
0
Yes
49
23.5
134
G
G


135
2.65
10.80
37.03
89.4
10.6
0
0
Yes
50
26.7
88
G
G


136
2.22
10.65
28.46
90.6
9.4
0
0
Yes
51
38.5
98
E
E


137
2.45
11.34
43.47
90.8
9.2
0
0
Yes
52
25.4
97
E
E


138
2.23
11.62
35.19
91.6
8.4
0
0
Yes
53
5.8
94
G
G


139
2.26
11.15
73.02
92.4
7.6
0
0
Yes
88
42.5
93
E
E


140
2.72
12.38
56.20
88.8
11.2
0
0
Yes
85
15.6
75
E
E























TABLE 13








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among Zn
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
metal grains/
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
Zn alloy grains
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
(Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























141
2.13
12.55
35.86
85.1
14.9
0
0
Yes
83
8.4
64
E
E


142
1.98
9.34
93.45
92.5
7.5
0
0
Yes
81
17.6
62
E
E


143
2.02
9.58
30.66
90.5
9.5
0
0
Yes
80
19.8
64
E
E


144
2.21
9.88
74.21
91.4
8.6
0
0
Yes
47
22.5
75
E
E


145
2.55
10.00
55.39
92.1
7.9
0
0
Yes
49
24.6
73
G
G


146
1.92
10.67
30.08
86.3
13.7
0
0
Yes
50
23.8
65
G
G


147
1.96
11.89
45.09
90.2
9.8
0
0
Yes
51
15.2
97
G
G


148
2.11
12.03
41.41
89.5
10.5
0
0
No
52
10.6
85
G
G


149
2.97
12.12
17.75
83.6
16.4
0
0
Yes
83
10.7
65
E
E


150
2.36
12.28
32.76
92.4
7.6
0
0
No
88
15
78
E
E


151
3.05
12.52
30.89
86.5
13.5
0
0
Yes
85
10.5
67
E
E


152
2.57
11.90
45.90
86.2
13.8
0
0
No
83
14.5
78
E
E


153
2.65
11.75
42.22
89.6
10.4
0
0
Yes
82
12.3
79
E
E


154
2.54
12.44
18.56
89.4
10.6
0
0
No
47
8.6
78
G
G


155
2.85
12.03
33.57
90.5
9.5
0
0
Yes
46
17.5
67
G
G


156
2.75
10.61
31.70
87.2
12.8
0
0
Yes
49
28.6
67
G
G


157
2.46
11.30
46.71
92.4
7.6
0
0
Yes
50
24.7
56
E
E


158
2.71
11.58
47.89
91.5
8.5
0
0
Yes
51
22.9
85
V
V


159
2.36
11.11
24.23
91
9
0
0
Yes
83
52.3
89
E
E


160
2.16
12.34
39.24
88.8
11.2
0
0
Yes
82
56.3
89
E
E























TABLE 14








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn metal
Zn alloy
Total



alloy grains (Ave grain
grains among
grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























161
2.46
12.51
37.37
86.2
13.8
0
0
Yes
88
33.3
98
E
E


162
2.49
11.64
50.38
92.4
7.6
0
0
Yes
85
34.5
96
E
E


163
1.63
9.16
37.14
90.6
9.4
0
0
Yes
86
23.5
94
E
E


164
1.51
9.46
13.48
91.4
8.6
0
0
Yes
47
26.7
123
E
E


165
3.05
9.54
40.05
87.5
12.5
0
0
No
48
38.5
156
G
G


166
2.57
9.56
38.18
88.5
11.5
0
0
No
50
25.4
234
G
G


167
2.65
9.46
7.63
90.6
9.4
0
0
Yes
51
5.8
278
G
G


168
2.54
11.99
37.95
91.4
8.6
0
0
Yes
52
42.5
134
G
G


169
2.85
12.08
14.29
91.5
8.5
0
0
Yes
88
15.6
88
E
E


170
2.75
12.24
40.86
89.6
10.4
0
0
No
89
42.5
98
E
E


171
2.46
12.48
97.50
89.3
10.7
0
0
No
86
15.6
97
E
E


172
2.71
11.86
13.30
92.1
7.9
0
0
Yes
87
8.4
94
E
E


173
2.36
11.71
43.62
87.5
12.5
0
0
No
86
17.6
93
E
E


174
2.46
11.35
56.93
91.9
7.5
0.6
0
Yes
46
22.5
75
E
E


175
1.45
12.02
36.59
90.45
9.5
0.05
0
Yes
49
24.6
64
G
G


176
2.42
13.24
39.95
91.38
8.6
0.02
0
Yes
35
23.8
62
G
G


177
2.11
9.46
86.50
91.1
7.9
1
0
Yes
37
15.2
64
E
E


178
2.97
13.47
32.87
81.1
13.7
5.2
0
No
36
10.6
134
G
G


179
2.36
9.46
16.23
85.6
9.8
4.6
0
Yes
38
107
167
E
E


180
3.05
13.87
37.40
89.5
10.5
0
0.001
Yes
48
15
38
G
G























TABLE 15








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn metal
Zn alloy
Total



alloy grains (Ave grain
grains among
grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























181
2.57
13.25
40.76
83
16.4
0
0.6
No
46
10.5
268
G
G


182
2.65
13.10
87.31
95.3
3.9
0
0.8
Yes
52
14.5
256
G
G


183
2.12
9.08
92.50
95
2.5
0
2.5
Yes
51
12.3
234
E
E


184
1.65
9.87
17.93
92.5
6
0
1.5
No
50
8.6
243
E
E


185
2.35
9.46
44.50
94.1
5
0
0.9
Yes
30
17.5
132
E
E


186
1.63
9.28
96.50
96.7
2.8
0
0.5
Yes
38
12.6
124
E
E


187
2.64
9.45
16.94
98.5
0.5
0.3
0.7
Yes
39
10.4
87
G
G


188
2.35
9.25
88.12
94.58
5.4
0.02
0.005
Yes
83
10.9
95
E
E


189
2.31
9.46
60.57
95.65
3.5
0.05
0.8
Yes
79
15
97
E
E


190
2.62
9.46
39.48
89
3.3
5.2
2.5
Yes
75
10.5
94
E
E


191
2.52
9.46
15.82
94.98
3.5
0.02
1.5
Yes
76
14.5
93
E
E


192
2.24
13.32
49.57
89.5
5
4.6
0.9
Yes
72
12.3
88
E
E


193
0.05
6.54
86.52
97.5
2.5
0
0.07
Yes
49
32
83
G
G


194
2.42
6.35
90.98
93.5
6.5
0
0.11
Yes
51
25
88
E
E


195
0.11
7.54
67.32
88.5
11.5
0
0.42
Yes
46
36
89
G
G


196
1.92
8.64
82.33
97.6
2.4
0
0.65
No
49
19
87
E
E


197
0.46
6.45
73.76
95.5
4.5
0
0.35
Yes
35
28.6
86
G
G


198
0.77
6.48
88.77
97.3
2.7
0
2.7
Yes
37
27
85
G
G


199
1.55
10.54
80.49
96.5
3.5
0
0.6
Yes
36
195
89
E
E


200
1.23
12.54
88.60
93.2
6.8
0
1.8
Yes
38
23
84
G
G























TABLE 16








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn metal
Zn alloy
Total



alloy grains (Ave grain
grains among
grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























201
1.45
18.67
53.20
87.6
12.4
0
1.34
No
48
23
88
G
G


202
1.64
19.45
98.71
98.5
1.5
0
0.75
Yes
46
18
86
G
G


203
0.54
21.55
97.23
87.5
12.5
0
0.43
Yes
52
55
85
G
G


204
1.85
7.54
70.16
95.4
4.6
5.8
0
No
51
19
83
E
E


205
1.42
35.48
82.73
95.2
4.8
2.7
0
No
50
42
82
G
G


206
0.06
65.22
68.54
92.5
7.5
0.6
0
Yes
30
19
81
G
G


207
1.34
35.47
75.38
98.4
1.6
0.5
0
Yes
38
28.6
89
G
G


208
1.58
15.24
90.39
97.1
2.9
0.2
0
Yes
39
27
89
G
G


209
1.47
13.67
86.71
96.5
3.5
0.01
0
Yes
83
195
85
E
E


210
1.64
6.45
63.05
97.4
2.6
0.06
0
Yes
79
23
83
E
E


211
1.86
7.54
78.06
94.6
5.4
0.07
0
Yes
75
23
86
E
E


212
0.25
14.32
98.71
93.6
6.4
0.05
0
Yes
76
25.4
88
E
E


213
0.46
45.22
97.23
92.2
7.8
0.02
0
No
72
5.8
80
E
E


214
0.77
48.57
70.16
94.4
5.6
0.65
0
Yes
71
42.5
89
E
E


215
1.55
99.52
82.73
96.5
3.5
0.78
0
Yes
88
15.6
89
E
E


216
1.23
13.64
98.71
97.3
2.7
0.99
0
Yes
82
8.4
98
E
E


217
1.45
18.54
97.23
94.5
5.5
1.76
0
No
83
17.6
96
E
E


218
1.64
7.54
70.16
90.6
9.4
7.8
0
Yes
81
19.8
94
E
E


219
0.54
14.52
82.73
87.4
12.6
9.88
0
Yes
64
22.5
123
G
G


220
1.85
13.75
86.54
88.4
11.6
4.65
0
Yes
69
24.6
156
G
G























TABLE 17








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn metal
Zn alloy
Total



alloy grains (Ave grain
grains among
grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























221
1.42
16.54
75.20
89.5
10.5
3.65
0
Yes
83
23.8
234
E
E


222
2.3
9.80
82.73
95.2
4.8
8.99
0
Yes
50
15.2
95
E
E


223
1.8
11.20
97.23
96.4
3.6
0
0.07
Yes
72
10.6
99
E
E


224
1.92
7.99
38.92
95.3
4.5
0.2
0
Yes
51
32
94
E
E


225
1.96
10.89
45.09
94.2
5.2
0.6
0
Yes
50
25
92
E
E


226
2.25
11.03
41.46
91.45
8.5
0.05
0
Yes
30
36
87
E
E


227
2.36
6.35
46.12
97.58
2.4
0.02
0
No
38
19
84
E
E


228
2.24
7.54
46.64
95.9
3.1
1
0
Yes
39
28.6
100
E
E


229
2.11
8.64
29.13
88.3
6.5
5.2
0
Yes
83
27
99
E
E


230
2.97
11.90
41.70
90.5
4.9
4.6
0
Yes
79
195
86
G
E


231
2.36
11.75
42.22
91.5
8.5
0
0.001
Yes
75
23
97
G
E


232
3.05
12.44
46.93
86.85
12.5
0.05
0.6
Yes
76
23
32
G
E


233
2.57
12.03
47.45
83.6
14.6
1
0.8
Yes
72
28.6
55
G
E


234
1.88
9.91
12.60
91
6.5
0
2.5
Yes
71
27
57
E
E


235
1.86
7.54
42.51
92.8
5.7
0
1.5
No
82
195
39
E
E


236
1.57
8.64
43.03
95.7
3.4
0
0.9
Yes
83
23
67
E
E


237
2.75
10.71
47.74
92.6
6.9
0
0.5
Yes
81
23
78
E
E


238
0.54
21.55
97.23
93.4
5.6
0.3
0.7
Yes
64
25.4
79
G
E


239
1.85
26.87
70.16
96.38
3.6
0.02
0.005
Yes
69
5.8
82
G
E


240
1.42
35.48
82.73
92.12
7.8
0.04
0.04
Yes
83
42.5
81
E
E























TABLE 18








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























241
0.06
65.22
94.81
80.3
16.5
1
2.2
Yes
50
15.6
89
G
E


242
1.34
35.47
96.54
79.94
18.4
0.06
1.6
Yes
72
19
96
G
E


243
0.25
14.32
98.71
91.85
2.5
5.6
0.05
Yes
76
42
95
G
E


244
0.46
45.22
97.23
91.4
4.3
4.2
0.1
Yes
72
23
99
G
E


245
0.77
48.57
70.16
89.8
3.5
6.4
0.3
Yes
46
28.6
100
G
E


246
1.55
99.52
82.73
84.9
2.6
9.6
2.9
Yes
52
5.8
123
G
E


247
1.23
13.64
98.71
88.4
1.5
8.5
1.6
Yes
83
15.2
89
E
E


248
2.94
9.61
7.56
94.1
5.9
0.65
0.07
Yes
46
19
145
G
G


249
2.11
9.85
95.98
93.5
6.5
0.07
0
Yes
47
28.6
167
E
E


250
2.68
9.23
68.91
97.6
2.4
0.08
2.5
Yes
49
27
169
G
G


251
2.74
9.46
46.67
92.5
7.5
1.2
2.9
Yes
47
42
213
G
G


252
2.13
9.46
7.66
91.6
8.4
1.8
1.8
Yes
52
19
215
E
E


253
2.82
9.46
15.20
90.8
9.2
9.2
0.5
Yes
52
28.6
224
G
G


254
1.88
9.91
16.58
89.4
10.6
8.9
0.8
Yes
50
55
75
G
G


255
2.35
9.25
35.87
96.0
4.0
0
0.7
Yes
47
16.5
64
E
E


256
2.57
9.56
42.04
97.5
2.5
0.02
0
Yes
48
25.4
62
G
G


257
2.56
9.84
38.41
98.4
1.6
7.8
0
Yes
49
5.8
64
G
G


258
2.21
9.75
6.99
95.5
4.5
0
0.5
Yes
51
42.5
75
E
E


259
2.64
9.85
44.12
96.2
3.8
0.08
0
Yes
52
15.6
73
G
G


260
2.68
9.23
44.21
97.6
2.4
2.7
0
No
51
15
24
G
G























TABLE 19








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























261
1.55
9.08
39.51
94.5
5.5
3.7
0
Yes
88
10.5
96
E
E


262
1.88
9.87
78.64
96.8
3.2
1.8
0
No
87
14.5
94
E
E


263
1.55
9.46
42.05
95.4
4.6
1.5
0
Yes
85
12.3
93
E
E


264
2.85
9.28
64.58
94.8
5.2
0
2.9
Yes
82
8.6
95
E
E


265
2.64
9.45
47.76
97.5
2.5
0
2.7
Yes
86
17.5
92
E
E


266
2.36
10.39
19.65
95.5
4.5
0
0.05
Yes
50
10.9
90
E
E


267
3.05
10.56
65.39
97.3
2.7
0
0.02
Yes
51
19
99
G
G


268
2.57
10.74
48.57
95.8
4.2
0
0.08
Yes
51
25.6
98
G
G


269
2.65
10.27
24.91
94.6
5.4
0
1.02
No
79
28.6
97
G
E


270
2.54
11.50
39.92
94.7
5.3
0
1.05
No
81
24.7
94
G
E


271
2.85
11.67
22.65
94.8
5.2
0
0.04
Yes
80
22.9
93
G
E


272
2.75
11.85
66.20
96.1
3.9
3.6
0.03
Yes
82
52.3
83
G
E


273
2.69
9.40
42.84
94.2
5.8
0.08
0.06
Yes
84
13.5
100
G
E


274
2.57
9.57
25.44
95.6
4.4
0.6
0.02
Yes
83
12.7
123
G
E


275
2.49
9.54
63.27
97.8
2.2
0.2
0.07
Yes
82
11.2
89
E
E


276
2.68
9.58
46.45
94.5
5.5
0
1.11
Yes
81
16.5
87
G
E


277
2.35
9.25
46.45
90.0
10.0
0
1.04
Yes
46
10.6
86
G
G


278
2.48
10.04
50.91
92.5
7.5
0
0.06
Yes
47
10.7
84
E
E


279
1.74
8.95
29.91
90.6
9.4
0
0.99
No
83
10.4
88
E
E


280
2.25
9.90
34.25
89.4
10.6
0
0.45
Yes
52
24.7
96
E
E























TABLE 20








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























281
2.36
9.57
37.61
90.6
9.4
0.7
0
Yes
89
22.9
94
E
E


282
2.24
10.79
45.60
90.3
9.7
0.5
0
Yes
85
52.3
123
E
E


283
2.23
11.62
35.19
91.6
8.4
0.2
0
Yes
53
5.8
94
G
G


284
2.26
11.15
73.02
92.4
7.6
0.07
0
Yes
88
42.5
93
E
E


285
2.72
12.38
56.20
88.8
11.2
0.06
0
Yes
85
15.6
75
G
E


286
2.11
12.03
41.41
89.5
10.5
0.13
0
No
52
10.6
85
G
G


287
2.97
12.12
17.75
83.6
16.4
0.65
0
Yes
83
10.7
65
G
E


288
2.36
12.28
32.76
92.4
7.6
0.27
0
Yes
88
15
78
G
E


289
2.75
10.61
31.70
87.2
12.8
0.45
0.65
Yes
49
28.6
67
G
G


290
2.46
11.30
46.71
92.4
7.6
0.33
0.99
Yes
50
24.7
56
G
G


291
2.71
11.58
47.89
91.5
8.5
1
2.5
Yes
51
22.9
85
G
G


292
2.36
11.11
24.23
91
9
0.87
1.8
Yes
83
52.3
89
G
E


293
2.16
12.34
39.24
88.8
11.2
0.07
0
Yes
82
56.3
89
G
E


294
2.46
12.51
37.37
86.2
13.8
0.27
0
Yes
88
33.3
98
G
E


295
2.49
11.64
50.38
92.4
7.6
0.86
0
No
85
34.5
96
G
E


296
2.71
11.86
13.30
92.1
7.9
0.65
0
Yes
87
8.4
94
G
E


297
2.36
11.71
43.62
87.5
12.5
0.43
0
No
86
17.6
93
G
E


298
1.96
10.89
56.93
91.9
7.5
0.6
0
Yes
46
22.5
75
E
E


299
2.25
11.03
36.59
90.45
9.5
0.05
0
Yes
49
24.6
64
E
E


300
2.42
13.24
39.95
91.38
8.6
0.02
0
Yes
35
23.8
62
G
G























TABLE 21








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























301
2.96
9.46
44.50
94.1
5
0
0.9
No
30
17.5
132
G
G


302
2.85
9.28
96.50
96.7
2.8
0
0.5
Yes
38
12.6
124
G
G


303
2.64
9.45
16.94
98.5
0.5
0.3
0.7
Yes
39
10.4
87
G
G


304
2.35
9.25
88.12
94.58
5.4
0.02
0.005
Yes
83
10.9
95
E
E


305
2.31
9.46
60.57
95.65
3.5
0.05
0.8
Yes
79
15
97
E
E


306
2.62
9.46
39.48
89
3.3
5.2
2.5
Yes
75
10.5
94
G
E


307
2.52
9.46
15.82
94.98
3.5
0.02
1.5
Yes
76
14.5
93
G
E


308
2.24
13.32
49.57
89.5
5
4.6
0.9
Yes
72
12.3
88
G
E


309
0.06
65.22
68.54
92.5
7.5
0.06
0.07
Yes
30
19
81
G
G


310
1.34
35.47
75.38
98.4
1.6
0.99
0.01
Yes
38
28.6
89
G
G


311
1.58
15.24
90.39
97.1
2.9
0.54
0.03
Yes
39
27
89
G
G


312
1.47
9.28
86.71
96.5
3.5
0.02
0.07
Yes
83
195
85
E
E


313
1.64
9.28
63.05
97.4
2.6
0.07
0.8
Yes
79
23
83
E
E


314
1.86
16.54
78.06
94.6
5.4
0.09
0.03
Yes
75
23
86
G
E


315
0.25
14.32
98.71
93.6
6.4
1.05
0.99
Yes
76
25.4
88
G
E


316
0.46
45.22
97.23
92.2
7.8
2.6
0.54
Yes
72
5.8
80
G
E


317
0.77
48.57
70.16
94.4
5.6
5.8
0.22
Yes
71
42.5
89
G
E


318
1.55
99.52
82.73
96.5
3.5
6.8
0.91
Yes
88
15.6
89
G
E


319
1.96
10.89
45.09
94.2
5.2
0.6
0.43
Yes
50
25
92
E
E


320
2.25
11.03
41.46
91.45
8.5
0.05
0.32
Yes
30
36
87
E
E























TABLE 22








Diameter distribution of
Percent of fine
Chemical component







Zn metal grains/Zn
grain metal
content of Zn
Zn alloy
Total



alloy grains (Ave grain
grains among
metal grains/Zn
grain
metal grain
Coat


Invention
diameter)
Zn metal
alloy grains
fracture
content of
thickness
Time to red


Example
(μm)
grains/Zn alloy
(Mass %)
surfaces
coat
(μm)
rusting




















No
Fine metal
Coarse metal
grains (Vol %)
Zn
Mg
Al
Si
present?
(Mass %)
Inorganic
Organic
Inorganic
Organic























321
2.36
12.12
46.12
97.58
2.4
0.02
0
Yes
38
19
84
G
G


322
2.24
9.46
46.64
95.9
3.1
1
0
Yes
39
28.6
100
E
E


323
2.11
12.52
29.13
88.3
6.5
5.2
0
No
83
27
99
G
E


324
2.97
11.90
41.70
90.5
4.9
4.6
0
Yes
79
195
86
G
E


325
2.36
9.46
42.22
91.5
8.5
0
0.001
Yes
75
23
97
E
E


326
3.05
12.44
46.93
86.9
12.5
0
0.6
No
76
23
32
G
E


327
2.57
12.03
47.45
84.6
14.6
0
0.8
Yes
72
28.6
55
G
E


328
1.85
26.87
70.16
96.38
3.6
0.02
0.005
Yes
69
5.8
82
G
G


329
1.42
35.48
82.73
92.12
7.8
0.04
0.04
Yes
83
42.5
81
G
E


330
0.06
65.22
94.81
80.3
16.5
1
2.2
Yes
50
15.6
89
G
G


331
1.34
35.47
96.54
79.94
18.4
0.06
1.6
Yes
72
19
96
G
E


332
0.25
14.32
98.71
91.85
2.5
5.6
0.05
Yes
76
42
95
G
E


333
0.46
45.22
97.23
91.4
4.3
4.2
0.1
Yes
72
23
99
G
E


334
0.77
48.57
70.16
89.8
3.5
6.4
0.3
Yes
46
28.6
100
G
G
























TABLE 23









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























413
2.65
9.56
5.66
100
0
0
0
No
—
35
Alkali silicate
2
Spray
G


414
0.05
6.5
16.55
100
0
0
0
No
—
66
Alkyl silicate
37
Spray
E


415
4.6
65.5
21.55
100
0
0
0
No
—
38
Alkali silicate
12
Spray
E


416
3.56
13.5
5.66
100
0
0
0
No
—
84
Alkyl silicate
160
Brush
E


417
4.55
16.7
33.66
100
0
0
0
No
—
39
Alkali silicate
5
Brush
G


418
2.15
9.89
45.65
100
0
0
0
No
—
85
Alkyl silicate
12
Brush
E


419
3.22
10.55
49.88
100
0
0
0
No
—
36
Alkali silicate
2
Spray
G


420
2.99
9.64
42.33
100
0
0
0
No
—
56
Alkyl silicate
18
Spray
E


421
3.65
11.22
65.44
100
0
0
0
No
—
42
Alkyl silicate
23
Spray
E


422
4.55
13.5
77.55
100
0
0
0
No
—
31
Epoxy resin
30
Brush
E


423
3.57
22.5
96.55
100
0
0
0
No
—
88
Acrylic resin
77
Brush
E


424
1.99
8.56
5.97
100
0
0
0
No
—
78
Urethane resin
254
Brush
E


425
2.12
9.46
87.77
100
0
0
0
No
—
36
Polyester resin
47
Spray
E


426
2.45
11.1
86.55
100
0
0
0
No
—
37
Epoxy resin
43
Spray
E


427
1.85
8.92
15.67
100
0
0
0
No
—
45
Acrylic resin
322
Brush
E


428
1.65
9.23
31.55
100
0
0
0
No
—
68
Urethane resin
20
Brush
E


429
2.45
9.05
26.76
100
0
0
0
No
—
79
Polyester resin
700
Brush
E


430
2.01
10.91
67.89
100
0
0
0
No
—
47
Alkali silicate
22
Spray
E


431
1.99
11.12
56.89
100
0
0
0
No
—
56
Alkyl silicate
25
Spray
E


432
2.38
10.93
45.67
100
0
0
0
No
—
37
Alkali silicate
14
Spray
E


433
2.49
9.34
34.67
100
0
0
0
No
—
90
Urethane resin
112
Spray
E


434
2.34
8.77
95.66
100
0
0
0
No
—
43
Alkali silicate
554
Spray
E
























TABLE 24









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























435
3.99
27.6
34.21
100
0
0
0
No
—
38
Urethane resin
150
Spray
E


436
1.02
21.9
7.88
100
0
0
0
No
—
56
Alkali silicate
18
Spray
E


437
0.05
22.5
92.32
100
0
0
0
No
—
89
Alkyl silicate
657
Brush
E


438
2.01
17.5
11.22
100
0
0
0
No
—
32
Alkyl silicate
24
Spray
E


439
1.51
6.99
55.66
100
0
0
0
No
—
55
Urethane resin
99
Spray
E


440
2.38
7.65
78.99
100
0
0
0
No
—
79
Alkyl silicate
7
Spray
E


441
1.99
8.56
5.97
100
0
0
0
No
—
78
Epoxy resin
100
Spray
E


442
2.49
9.34
34.67
100
0
0
0
No
—
77
Alkyl silicate
27
Brush
E


443
1.02
21.9
7.88
100
0
0
0
No
—
56
Alkali silicate
15
Spray
E


444
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
49
Alkyl silicate
14
Spray
E


445
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
89
Urethane resin
55
Spray
E


446
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
90
Alkyl silicate
8
Spray
E


447
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
86
Urethane resin
122
Brush
E


448
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
48
Alkyl silicate
555
Spray
E


449
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
47
Alkali silicate
19
Spray
E


450
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
47
Alkyl silicate
25
Brush
E


451
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
47
Alkyl silicate
58
Spray
E


452
2.37
8
44.94
94.3
5.7
0
0
No
1.07
52
Alkyl silicate
685
Spray
E


453
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
52
Alkali silicate
19
Brush
E


454
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
52
Urethane resin
700
Spray
E


455
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
88
Alkyl silicate
77
Spray
E


456
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
87
Alkyl silicate
54
Spray
E
























TABLE 25









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























457
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
89
Alkyl silicate
64
Spay
E


458
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
90
Alkyl silicate
34
Brush
E


459
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
91
Alkali silicate
28
Spay
E


460
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
46
Urethane resin
109
Brush
E


461
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
47
Alkyl silicate
15
Spay
E


462
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
47
Alkyl silicate
14
Spay
E


463
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
49
Alkyl silicate
18
Spay
E


464
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
50
Alkali silicate
2
Spay
G


465
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
87
Alkyl silicate
37
Spay
E


466
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
83
Alkali silicate
12
Spay
E


467
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
48
Alkyl silicate
160
Brush
E


468
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
51
Alkali silicate
5
Brush
E


469
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
51
Alkyl silicate
56
Brush
E


470
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
87
Alkali silicate
2
Spay
E


471
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
85
Alkyl silicate
18
Spay
E


472
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
86
Alkyl silicate
23
Spay
E


473
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
50
Epoxy resin
30
Brush
E


474
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
51
Acrylic resin
77
Brush
E


475
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
51
Urethane resin
655
Brush
E


476
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
80
Polyester resin
47
Spay
E


477
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
46
Epoxy resin
43
Spay
E


478
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
51
Acrylic resin
52
Brush
E
























TABLE 26









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























479
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
86
Urethane resin
20
Brush
E


480
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
85
Polyester resin
200
Brush
E


481
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
82
Alkali silicate
22
Spray
E


482
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
81
Alkyl silicate
25
Spray
E


483
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
46
Alkali silicate
14
Spray
E


484
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
47
Urethane resin
112
Spray
E


485
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
48
Alkali silicate
24
Spray
E


486
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
51
Urethane resin
150
Spray
E


487
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
53
Alkali silicate
18
Spray
E


488
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
88
Alkyl silicate
19
Brush
E


489
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
85
Alkyl silicate
24
Spray
E


490
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
83
Urethane resin
99
Spray
E


491
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
82
Alkyl silicate
7
Spray
E


492
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
83
Epoxy resin
100
Spray
E


493
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
47
Alkyl silicate
27
Brush
E


494
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
51
Alkali silicate
15
Spray
E


495
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
52
Alkyl silicate
14
Spray
E


496
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
51
Urethane resin
55
Spray
E


497
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
52
Alkyl silicate
8
Spray
E


498
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
89
Urethane resin
122
Brush
E


499
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
85
Alkyl silicate
54
Spray
E


500
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
82
Alkali silicate
19
Spray
E
























TABLE 27









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























501
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
87
Alkyl silicate
25
Brush
E


502
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
88
Alkyl silicate
58
Spray
E


503
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
49
Alkyl silicate
21
Spray
E


504
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
50
Alkali silicate
19
Brush
E


505
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
51
Urethane resin
56
Spray
E


506
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
52
Alkyl silicate
77
Spray
E


507
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
53
Alkyl silicate
12
Spray
E


508
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
88
Alkyl silicate
64
Spray
E


509
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
85
Alkyl silicate
34
Brush
E


510
2.36
12.78
45.59
80
20
0
0
Yes
1.05
83
Alkali silicate
28
Spray
E


511
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
81
Urethane resin
109
Brush
E


512
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
80
Alkyl silicate
15
Spray
E


513
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
47
Alkyl silicate
14
Spray
E


514
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
49
Alkyl silicate
18
Spray
E


515
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
50
Urethane resin
122
Brush
E


516
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
51
Alkyl silicate
54
Spray
E


517
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
52
Alkali silicate
19
Spray
E


518
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
83
Alkyl silicate
25
Brush
E


519
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
88
Alkyl silicate
58
Spray
E


520
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
85
Alkyl silicate
21
Spray
E


521
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
83
Alkali silicate
19
Brush
E


522
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
82
Urethane resin
56
Spray
E
























TABLE 28









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























523
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
47
Alkyl silicate
77
Spray
E


524
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
46
Alkyl silicate
54
Spray
E


525
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
49
Alkali silicate
2
Spray
G


526
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
50
Alkali silicate
20
Spray
E


527
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
51
Alkali silicate
5
Spray
G


528
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
83
Alkyl silicate
20
Spray
E


529
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
82
Alkali silicate
15
Brush
E


530
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
88
Alkyl silicate
57
Brush
E


531
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
85
Alkali silicate
13
Brush
E


532
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
86
Alkyl silicate
22
Brush
E


533
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
47
Alkali silicate
20
Spray
E


534
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
48
Alkyl silicate
27
Spray
E


535
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
50
Alkali silicate
15
Spray
E


536
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
51
Alkyl silicate
35
Spray
E


537
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
52
Alkali silicate
34
Brush
E


538
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
88
Alkyl silicate
45
Brush
E


539
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
89
Alkali silicate
52
Brush
E


540
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
86
Alkyl silicate
23
Brush
E


541
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
87
Alkali silicate
5
Spray
E


542
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
86
Alkyl silicate
52
Brush
E


543
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
46
Alkali silicate
150
Brush
E


544
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
49
Alkyl silicate
60
Brush
E
























TABLE 29









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























545
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
35
Alkali silicate
15
Spray
E


546
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
37
Alkyl silicate
24
Spray
E


547
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
36
Alkali silicate
34
Spray
E


548
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
38
Alkyl silicate
20
Brush
E


549
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
48
Alkali silicate
200
Brush
E


550
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
46
Alkyl silicate
56
Brush
E


551
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
51
Alkali silicate
34
Spray
E


552
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
46
Alkyl silicate
2
Spray
G


553
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
38
Alkali silicate
15
Spray
E


554
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
48
Alkali silicate
10
Spray
E


555
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
52
Alkyl silicate
125
Brush
E


556
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
30
Alkali silicate
24
Brush
E


557
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
76
Alkyl silicate
110
Brush
E


558
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
72
Alkali silicate
24
Brush
E


559
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
81
Alkyl silicate
2
Spray
G


560
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
64
Alkali silicate
37
Spray
E


561
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
69
Alkyl silicate
113
Brush
E


562
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
83
Alkali silicate
2
Spray
G


563
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
30
Alkyl silicate
75
Brush
E


564
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
83
Alkali silicate
30
Brush
E


565
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
75
Alkyl silicate
34
Brush
E


566
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
76
Epoxy resin
124
Brush
E
























TABLE 30









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























567
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
72
Acrylic resin
15
Spray
E


568
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
71
Urethane resin
23
Spray
E


569
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
82
Polyester resin
157
Brush
E


570
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
81
Epoxy resin
26
Spray
E


571
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
83
Acrylic resin
38
Spray
E


572
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
50
Urethane resin
160
Brush
E


573
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
72
Polyester resin
27
Brush
E


574
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
47
Epoxy resin
180
Brush
E


575
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
47
Acrylic resin
26
Spray
E


576
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
52
Urethane resin
180
Brush
E


577
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
52
Polyester resin
15
Spray
E


578
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
50
Epoxy resin
2
Spray
G


579
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
46
Acrylic resin
28
Spray
E


580
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
47
Urethane resin
30
Spray
E


581
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
83
Polyester resin
2
Spray
G


582
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
52
Epoxy resin
157
Brush
E


583
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
89
Acrylic resin
28
Brush
E


584
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
85
Alkyl silicate
130
Brush
E


585
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
53
Alkyl silicate
29
Brush
E


586
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
88
Epoxy resin
30
Brush
E


587
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
85
Acrylic resin
120
Brush
E


588
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
82
Urethane resin
187
Brush
E
























TABLE 31









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























589
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
83
Polyester resin
28
Spray
E


590
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
88
Epoxy resin
5
Spray
E


591
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
49
Acrylic resin
35
Spray
E


592
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
50
Urethane resin
5
Spray
G


593
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
51
Polyester resin
200
Brush
E


594
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
83
Alkali silicate
25
Spray
E


595
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
82
Alkali silicate
15
Spray
E


596
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
88
Alkyl silicate
20
Spray
E


597
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
85
Alkali silicate
18
Spray
E


598
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
87
Alkyl silicate
22
Spray
E


599
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
86
Alkali silicate
19
Spray
E


600
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
46
Alkyl silicate
29
Spray
E


601
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
49
Alkali silicate
23
Spray
E


602
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
35
Alkyl silicate
21
Spray
E


603
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
30
Alkali silicate
19
Spray
E


604
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
76
Alkyl silicate
15
Spray
E


605
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
72
Alkali silicate
18
Spray
E


606
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
30
Alkyl silicate
22
Spray
E


607
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
83
Alkyl silicate
21
Spray
E


608
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
75
Alkyl silicate
29
Spray
E


609
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
76
Alkali silicate
23
Spray
E


610
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
72
Alkyl silicate
21
Spray
E
























TABLE 32









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (peak
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























611
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
83
Alkali silicate
19
Spray
E


612
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
50
Alkyl silicate
21
Spray
E


613
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
72
Alkali silicate
19
Spray
E


614
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
50
Acrylic resin
654
Spray
E


615
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
48
Alkali silicate
700
Spray
E


616
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
75
Alkyl silicate
555
Spray
E


617
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
55
Alkyl silicate
321
Spray
E


618
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
38
Alkyl silicate
152
Brush
E


619
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
48
Urethane resin
674
Spray
E


620
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
76
Polyester resin
325
Spray
E


621
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
72
Alkyl silicate
665
Spray
E


622
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
75
Alkyl silicate
354
Brush
E


623
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
76
Alkyl silicate
165
Spray
E


624
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
72
Urethane resin
354
Spray
E
























TABLE 33









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (Ave
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























625
2.65
9.56
5.66
100
0
0
0
N
—
35
Alkali silicate
2
Spray
G


626
0.05
6.5
16.55
100
0
0
0
N
—
66
Alkyl silicate
37
Spray
E


627
4.6
65.5
21.55
100
0
0
0
N
—
38
Alkali silicate
12
Spray
E


628
3.56
13.5
5.66
100
0
0
0
N
—
84
Alkyl silicate
160
Brush
E


629
4.55
16.7
33.66
100
0
0
0
N
—
39
Alkali silicate
5
Brush
G


630
2.15
9.89
45.65
100
0
0
0
N
—
85
Alkyl silicate
12
Brush
E


631
3.22
10.55
49.88
100
0
0
0
N
—
36
Alkali silicate
2
Spray
G


632
2.99
9.64
42.33
100
0
0
0
N
—
56
Alkyl silicate
18
Spray
E


633
3.65
11.22
65.44
100
0
0
0
N
—
42
Alkyl silicate
23
Spray
E


634
4.55
13.5
77.55
100
0
0
0
N
—
31
Epoxy resin
30
Brush
E


635
3.57
22.5
96.55
100
0
0
0
N
—
88
Acrylic resin
77
Brush
E


636
1.99
8.56
5.97
100
0
0
0
N
—
78
Urethane resin
254
Brush
E


637
2.12
9.46
87.77
100
0
0
0
N
—
36
Polyester resin
47
Spray
E


638
2.45
11.1
86.55
100
0
0
0
N
—
37
Epoxy resin
43
Spray
E


639
1.85
8.92
15.67
100
0
0
0
N
—
45
Acrylic resin
322
Brush
E


640
1.65
9.23
31.55
100
0
0
0
N
—
68
Urethane resin
20
Brush
E


641
2.45
9.05
26.76
100
0
0
0
N
—
79
Polyester resin
700
Brush
E


642
2.01
10.91
67.89
100
0
0
0
N
—
47
Alkali silicate
22
Spray
E


643
1.99
11.12
56.89
100
0
0
0
N
—
56
Alkyl silicate
25
Spray
E


644
2.38
10.93
45.67
100
0
0
0
N
—
37
Alkali silicate
14
Spray
E
























TABLE 34









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (Ave
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























645
2.49
9.34
34.67
100
0
0
0
No
—
90
Urethane resin
112
Spray
E


646
2.34
8.77
95.66
100
0
0
0
No
—
43
Alkali silicate
554
Spray
E


647
3.99
27.60
34.21
100
0
0
0
No
—
38
Urethane resin
150
Spray
E


648
1.02
21.90
7.88
100
0
0
0
No
—
56
Alkali silicate
18
Spray
E


649
0.05
22.50
92.32
100
0
0
0
No
—
89
Alkyl silicate
657
Brush
E


650
2.01
17.50
11.22
100
0
0
0
No
—
32
Alkyl silicate
24
Spray
E


651
1.51
6.99
55.66
100
0
0
0
No
—
55
Urethane resin
99
Spray
E


652
2.38
7.65
78.99
100
0
0
0
No
—
79
Alkyl silicate
7
Spray
E


653
1.99
8.56
5.97
100
0
0
0
No
—
78
Epoxy resin
100
Spray
E


654
2.49
9.34
34.67
100
0
0
0
No
—
77
Alkyl silicate
27
Brush
E


655
1.02
21.9
7.88
100
0
0
0
No
—
56
Alkali silicate
15
Spray
E


656
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
49
Alkyl silicate
14
Spray
E


657
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
89
Urethane resin
55
Spray
E


658
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
90
Alkyl silicate
8
Spray
E


659
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
86
Urethane resin
122
Brush
E


660
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
48
Alkyl silicate
555
Spray
E


661
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
47
Alkali silicate
19
Spray
E


662
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
47
Alkyl silicate
25
Brush
E


663
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
47
Alkyl silicate
58
Spray
E


664
2.37
8.00
44.94
94.3
5.7
0
0
No
1.07
52
Alkyl silicate
685
Spray
E
























TABLE 35









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (Ave
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























665
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
52
Alkali silicate
19
Brush
E


666
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
52
Urethane resin
700
Spray
E


667
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
88
Alkyl silicate
77
Spray
E


668
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
87
Alkyl silicate
54
Spray
E


669
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
89
Alkyl silicate
64
Spray
E


670
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
90
Alkyl silicate
34
Brush
E


671
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
91
Alkali silicate
28
Spray
E


672
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
46
Urethane resin
109
Brush
E


673
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
47
Alkyl silicate
15
Spray
E


674
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
47
Alkyl silicate
14
Spray
E


675
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
49
Alkyl silicate
18
Spray
E


676
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
50
Alkali silicate
2
Spray
G


677
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
87
Alkyl silicate
37
Spray
E


678
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
83
Alkali silicate
12
Spray
E


679
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
48
Alkyl silicate
160
Brush
E


680
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
51
Alkali silicate
5
Brush
G


681
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
51
Alkyl silicate
56
Brush
E


682
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
87
Alkali silicate
2
Spray
G


683
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
85
Alkyl silicate
18
Spray
E


684
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
86
Alkyl silicate
23
Spray
E
























TABLE 36









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (Ave
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























686
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
51
Acrylic resin
77
Brush
E


687
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
51
Urethane resin
655
Brush
E


688
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
80
Polyester resin
47
Spray
E


689
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
46
Epoxy resin
43
Spray
E


690
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
51
Acrylic resin
52
Brush
E


691
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
86
Urethane resin
20
Brush
E


692
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
85
Polyester resin
200
Brush
E


693
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
82
Alkali silicate
22
Spray
E


694
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
81
Alkyl silicate
25
Spray
E


695
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
46
Alkali silicate
14
Spray
E


696
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
47
Urethane resin
112
Spray
E


697
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
48
Alkali silicate
24
Spray
E


698
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
51
Urethane resin
150
Spray
E


699
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
53
Alkali silicate
18
Spray
E


700
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
88
Alkyl silicate
19
Brush
E


701
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
85
Alkyl silicate
24
Spray
E


702
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
83
Urethane resin
99
Spray
E


703
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
82
Alkyl silicate
7
Spray
E


704
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
83
Epoxy resin
100
Spray
E


705
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
47
Alkyl silicate
27
Brush
E
























TABLE 37









Granularity
Percent of








distribution
fine-grain




of Zn
metal




metal grains/
grains

Zn alloy

Coating details


















Zn alloy
among Zn

grain

Total







grains (Ave
metal
Chemical component
fracture

metal



grain diameter)
grains/
content of
surfaces

grain


Invention
(μm)
Zn alloy
Zn metal grains/Zn alloy
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
grains (Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























706
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
51
Alkali silicate
15
Spray
E


707
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
52
Alkyl silicate
14
Spray
E


708
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
51
Urethane resin
55
Spray
E


709
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
52
Alkyl silicate
8
Spray
E


710
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
89
Urethane resin
122
Brush
E


711
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
85
Alkyl silicate
54
Spray
E


712
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
82
Alkali silicate
19
Spray
E


713
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
87
Alkyl silicate
25
Brush
E


714
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
88
Alkyl silicate
58
Spray
E


715
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
49
Alkyl silicate
21
Spray
E


716
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
50
Alkali silicate
19
Brush
E


717
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
51
Urethane resin
56
Spray
E


718
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
52
Alkyl silicate
77
Spray
E


719
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
53
Alkyl silicate
12
Spray
E


720
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
88
Alkyl silicate
64
Spray
E


721
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
85
Alkyl silicate
34
Brush
E


722
2.36
12.78
45.59
80
20
0
0
Yes
1.05
83
Alkali silicate
28
Spray
E


723
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
81
Urethane resin
109
Brush
E


724
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
80
Alkyl silicate
15
Spray
E


725
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
47
Alkyl silicate
14
Spray
E
























TABLE 38










Percent of








Granularity
fine-grain



distribution of
metal



Zn metal
grains

Zn alloy

Coating details


















grains/Zn alloy
among Zn
Chemical component
grain

Total







grains (Ave
metal
content of Zn metal
fracture

metal



grain diameter)
grains/
grains/Zn alloy
surfaces

grain


Invention
(μm)
Zn alloy
grains
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























726
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
49
Alkyl silicate

Spray
E


727
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
50
Urethane resin
122
Brush
E


728
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
51
Alkyl silicate
54
Spray
E


729
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
52
Alkali silicate
19
Spray
E


730
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
83
Alkyl silicate
25
Brush
E


731
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
88
Alkyl silicate
58
Spray
E


732
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
85
Alkyl silicate
21
Spray
E


733
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
83
Alkali silicate
19
Brush
E


734
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
82
Urethane resin
56
Spray
E


735
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
47
Alkyl silicate
77
Spray
E


736
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
46
Alkyl silicate
54
Spray
E


737
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
49
Alkali silicate
2
Spray
E


738
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
50
Alkali silicate
20
Spray
E


739
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
51
Alkali silicate
5
Spray
E


740
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
83
Alkyl silicate
20
Spray
E


741
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
82
Alkali silicate
15
Brush
E


742
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
88
Alkyl silicate
57
Brush
E


743
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
85
Alkali silicate
13
Brush
E


744
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
86
Alkyl silicate
22
Brush
E


745
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
47
Alkali silicate
20
Spray
E


746
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
48
Alkyl silicate
27
Spray
E
























TABLE 39










Percent of








Granularity
fine-grain



distribution of
metal



Zn metal
grains

Zn alloy

Coating details


















grains/Zn alloy
among Zn
Chemical component
grain

Total







grains (Ave
metal
content of Zn metal
fracture

metal



grain diameter)
grains/
grains/Zn alloy
surfaces

grain


Invention
(μm)
Zn alloy
grains
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























747
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
50
Alkali silicate
15
Spray
E


748
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
51
Alkyl silicate
35
Spray
E


749
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
52
Alkali silicate
34
Brush
E


750
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
88
Alkyl silicate
45
Brush
E


751
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
89
Alkali silicate
52
Brush
E


752
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
86
Alkyl silicate
23
Brush
E


753
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
87
Alkali silicate
5
Spray
E


754
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
86
Alkyl silicate
52
Brush
E


755
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
46
Alkali silicate
150
Brush
E


756
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
49
Alkyl silicate
60
Brush
E


757
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
35
Alkali silicate
15
Spray
E


758
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
37
Alkyl silicate
24
Spray
E


759
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
36
Alkali silicate
34
Spray
E


760
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
38
Alkyl silicate
20
Brush
E


761
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
48
Alkali silicate
200
Brush
E


762
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
46
Alkyl silicate
56
Brush
E


763
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
51
Alkali silicate
34
Spray
E


764
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
46
Alkyl silicate
2
Spray
G


765
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
38
Alkali silicate
15
Spray
E


766
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
48
Alkali silicate
10
Spray
E
























TABLE 40










Percent of








Granularity
fine-grain



distribution of
metal



Zn metal
grains

Zn alloy

Coating details


















grains/Zn alloy
among Zn
Chemical component
grain

Total







grains (Ave
metal
content of Zn metal
fracture

metal



grain diameter)
grains/
grains/Zn alloy
surfaces

grain


Invention
(μm)
Zn alloy
grains
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























767
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
52
Alkyl silicate
125
Brush
E


768
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
30
Alkali silicate
24
Brush
E


769
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
76
Alkyl silicate
110
Brush
E


770
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
72
Alkali silicate
24
Brush
E


771
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
81
Alkyl silicate
2
Spray
G


772
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
64
Alkali silicate
37
Spray
E


773
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
69
Alkyl silicate
113
Brush
E


774
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
83
Alkali silicate
2
Spray
G


775
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
30
Alkyl silicate
75
Brush
E


776
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
83
Alkali silicate
30
Brush
E


777
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
75
Alkyl silicate
34
Brush
E


778
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
76
Epoxy resin
124
Brush
E


779
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
72
Acrylic Resin
15
Spray
E


780
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
71
Urethane Resin
23
Spray
E


781
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
82
Polyester resin
157
Brush
E


782
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
81
Epoxy resin
26
Spray
E


783
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
83
Acrylic resin
38
Spray
E


784
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
50
Urethane resin
160
Brush
E


785
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
72
Polyester resin
27
Brush
E


786
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
47
Epoxy resin
180
Brush
E
























TABLE 41










Percent of








Granularity
fine-grain



distribution of
metal



Zn metal
grains

Zn alloy

Coating details


















grains/Zn alloy
among Zn
Chemical component
grain

Total







grains (Ave
metal
content of Zn metal
fracture

metal



grain diameter)
grains/
grains/Zn alloy
surfaces

grain


Invention
(μm)
Zn alloy
grains
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























788
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
52
Urethane resin
180
Brush
E


789
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
52
Polyester resin
15
Spray
E


790
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
50
Epoxy resin
2
Spray
G


791
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
46
Acrylic resin
28
Spray
E


792
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
47
Urethane resin
30
Spray
E


793
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
83
Polyester resin
2
Spray
G


794
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
52
Epoxy resin
157
Brush
E


795
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
89
Acrylic resin
28
Brush
E


796
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
85
Alkyl silicate
130
Brush
E


797
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
53
Alkyl silicate
29
Brush
E


798
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
88
Epoxy resin
30
Brush
E


799
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
85
Acrylic resin
120
Brush
E


800
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
52
Urethane resin
187
Brush
E


801
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
83
Polyester resin
28
Spray
E


802
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
88
Epoxy resin
5
Spray
E


803
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
49
Acrylic resin
35
Spray
E


804
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
50
Urethane resin
5
Spray
G


805
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
51
Polyester resin
200
Brush
E


806
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
83
Alkali silicate
25
Spray
E


807
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
82
Alkali silicate
15
Spray
E
























TABLE 42










Percent of








Granularity
fine-grain



distribution of
metal



Zn metal
grains

Zn alloy

Coating details


















grains/Zn alloy
among Zn
Chemical component
grain

Total







grains (Ave
metal
content of Zn metal
fracture

metal



grain diameter)
grains/
grains/Zn alloy
surfaces

grain


Invention
(μm)
Zn alloy
grains
or
Ave
content

Coat

Corrosion


















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
of coat

thickness
Coating
Test





















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
(Mass %)
Base resin type
(μm)
method
Results
























808
2.57
13.25
40.76
81.4
18.6
0
0
Yes
1.16
88
Alkyl silicate
20
Spray
E


809
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
85
Alkali silicate
18
Spray
E


810
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
87
Alkyl silicate
22
Spray
E


811
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
86
Alkali silicate
19
Spray
E


812
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
46
Alkyl silicate
29
Spray
E


813
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
49
Alkali silicate
23
Spray
E


814
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
35
Alkyl silicate
21
Spray
E


815
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
30
Alkali silicate
19
Spray
E


816
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
76
Alkyl silicate
15
Spray
E


817
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
72
Alkali silicate
18
Spray
E


818
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
30
Alkyl silicate
22
Spray
E


819
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
83
Alkyl silicate
21
Spray
E


820
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
75
Alkyl silicate
29
Spray
E


821
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
76
Alkali silicate
23
Spray
E


822
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
72
Alkyl silicate
21
Spray
E


823
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
83
Alkali silicate
19
Spray
E


824
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
50
Alkyl silicate
21
Spray
E


825
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
72
Alkali silicate
19
Spray
E


826
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
50
Acrylic resin
654
Spray
E


827
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
48
Alkali silicate
700
Spray
E

























TABLE 43










Percent of

Zn alloy Mg








Diameter
fine-grain

solid




distribution of
metal

solution




Zn metal
grains

phase




grains/Zn alloy
among Zn
Chemical component
and Zn—Mg

Mg




grains (Ave
metal
content of Zn metal
intermetallic

content
Coat



Average
grain diameter)
grains/
grains/Zn alloy
compounds

of all
thickness
Time to red


Invention
grain
(μm)
Zn alloy
grains
present on
MgZn2 or
metal
(μm)
rusting



















Example
diameter
Fine
Coarse
grains
(Mass %)
grain
Mg2Zn11
grains
Inor-


Inor-






















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
surfaces?
present?
(Mass %)
ganic
Organic
Organic
ganic

























335
—
2.35
9.25
78.99
96.0
4.0
0
0
Yes
Yes
92
24.6
125
E
E


336
—
1.99
9.56
42.04
97.5
2.5
0
0
Yes
Yes
80
23.8
167
E
E


337
—
2.35
10
6.55
98.4
1.6
0
0
Yes
Yes
67
15.2
88
E
E


338
—
2.21
8.54
43.60
95.5
7.8
0
0
Yes
Yes
77
10.6
56
E
E


339
—
2.64
9.85
44.12
96.2
3.8
0
0
Yes
Yes
53
10.7
256
E
E


340
—
2.65
8.56
80.33
98.0
2.0
0
0
Yes
No
78
15
24
E
E


341
—
2.94
8.21
43.38
94.5
5.5
0
0
No
No
83
10.5
96
G
G


342
—
2.58
8.33
13.52
94.0
6.0
0
0
No
No
89
14.5
94
G
G


343
—
2.37
8.5
34.55
97.5
2.5
0
0.07
Yes
Yes
90
12.3
93
E
E


344
—
2.15
10.11
80.50
93.2
6.8
0
0.99
Yes
Yes
45
8.6
95
E
E


345
—
2.96
9.36
79.08
94.5
5.5
0
0
No
No
53
17.5
92
G
G


346
—
2.85
9.45
42.13
93.6
6.4
0
0
No
No
48
12.6
95
G
G


347
—
2.94
9.61
7.56
94.1
5.9
0
0
Yes
No
46
10.4
91
E
E


348
—
2.11
9.85
33.30
93.5
6.5
0
0
Yes
No
47
10.9
90
E
E


349
—
2.68
9.23
79.25
97.6
2.4
0
0
No
No
49
19
99
G
G


350
—
2.49
9.08
7.83
94.5
5.5
0
0.53
Yes
Yes
83
25.6
115
E
E


351
—
2.21
9.87
45.68
92.45
7.5
0
0.05
Yes
Yes
35
18
97
E
E


352
—
2.96
9.46
65.58
90.45
9.5
0.05
0
No
No
90
24.7
94
G
G


353
—
2.85
9.28
47.24
91.38
8.6
0.02
0
No
No
89
22.9
93
G
G


354
—
2.64
9.45
47.76
91.1
7.9
1
0
Yes
No
88
52.3
83
G
G

























TABLE 44










Percent of

Zn alloy Mg








Diameter
fine-grain

solid




distribution of
metal

solution




Zn metal
grains

phase




grains/Zn alloy
among Zn
Chemical component
and Zn—Mg

Mg



Average
grains (Ave
metal
content of Zn metal
intermetallic

content
Coat



grain
grain diameter)
grains/
grains/Zn alloy
compounds

of all
thickness
Time to red


Invention
di-
(μm)
Zn alloy
grains
present on
MgZn2 or
metal
(μm)
rusting



















Example
ameter
Fine
Coarse
grains
(Mass %)
grain
Mg2Zn11
grains
Inor-


Inor-






















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
surfaces?
present?
(Mass %)
ganic
Organic
Organic
ganic

























355
—
2.35
9.25
80.06
81.1
13.7
5.2
0
Yes
Yes
47
56.3
88
E
G


356
—
2.12
9.46
47.02
85.6
9.8
4.6
0
No
No
47
33.3
89
G
G


357
—
1.76
9.46
7.66
89.5
10.5
0
0.001
No
No
52
34.5
87
G
G


358
—
2.12
9.46
15.20
91.2
8.8
0
0
Yes
Yes
52
23.5
103
E
E


359
—
1.65
9.06
86.28
96.1
3.9
0
0
Yes
Yes
52
26.7
85
E
E


360
—
2.12
10.99
49.33
97.5
2.5
0
0
Yes
Yes
88
19.5
109
E
E


361
—
2.21
8.08
5.99
94
6
0
0
Yes
Yes
49
15
74
E
E


362
—
1.99
8.53
69.55
99.4
0.6
0
0
Yes
Yes
35
23
105
E
E


363
—
1.95
9.32
86.45
91.6
7.9
0
0.5
No
No
37
31.2
83
G
G


364
—
1.76
8.95
75.88
98.5
0.5
0.3
0.7
No
No
36
37.5
82
G
G


365
—
1.48
10.21
48.08
88.43
11.5
0.02
0.05
Yes
Yes
80
9.8
124
E
E


366
—
1.65
8.7
66.85
95.73
3.5
0.12
0.65
Yes
Yes
55
15.5
89
E
E


367
—
2.35
9.86
7.68
92.09
7.8
0.06
0.05
No
No
46
14.5
96
G
G


368
—
1.62
8.91
8.64
95.49
3.5
0.02
0.99
Yes
Yes
35
16.3
95
E
E


369
—
1.88
9.91
16.58
93.96
5
0.54
0.5
Yes
Yes
67
15.8
99
E
E


370
—
2.35
9.25
35.87
91.45
8.5
0.05
0
No
No
47
19
89
G
G


371
—
2.57
9.56
42.04
97.13
2.4
0.02
0.45
Yes
Yes
78
14.6
89
E
E


372
—
2.56
9.84
38.41
94.58
5.4
0.02
0.11
Yes
Yes
34
19.5
98
E
E


373
—
2.21
9.75
6.99
95.65
6.8
0.05
0.8
No
No
51
24.7
96
G
G























TABLE 45









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase
Any of



of Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





837
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


838
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


839
2.56
9.84
6.55
81.45
18.5
0
0.5
Yes
1.22
Yes
Yes


840
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


841
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


842
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


843
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


844
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


845
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


846
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


847
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


848
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


849
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


850
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


851
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


852
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


853
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


854
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


855
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


856
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







837
49
Alkyl silicate
14
Spray
E



838
89
Urethane resin
55
Spray
E



839
90
Alkyl silicate
8
Spray
E



840
86
Urethane resin
122
Brush
E



841
48
Alkyl silicate
555
Spray
E



842
47
Alkali silicate
19
Spray
E



843
47
Alkyl silicate
25
Brush
E



844
47
Alkyl silicate
58
Spray
E



845
52
Alkyl silicate
685
Spray
E



846
52
Alkali silicate
19
Brush
E



847
52
Urethane resin
700
Spray
E



848
88
Alkyl silicate
77
Spray
E



849
87
Alkyl silicate
54
Spray
E



850
89
Alkyl silicate
64
Spray
E



851
90
Alkyl silicate
34
Brush
E



852
91
Alkali silicate
28
Spray
E



853
46
Urethane resin
109
Brush
E



854
47
Alkyl silicate
15
Spray
E



855
47
Alkyl silicate
14
Spray
E



856
49
Alkyl silicate
18
Spray
E
























TABLE 46









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





857
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


858
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


859
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


860
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


861
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


862
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


863
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


864
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


865
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


866
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


867
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


868
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


869
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


870
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


871
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


872
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


873
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


874
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


875
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


876
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







857
50
Alkali silicate
2
Spray
G



858
87
Alkyl silicate
37
Spray
E



859
83
Alkali silicate
12
Spray
E



860
48
Alkyl silicate
160
Brush
E



861
51
Alkali silicate
5
Brush
G



862
51
Alkyl silicate
56
Brush
E



863
87
Alkali silicate
2
Spray
G



864
85
Alkyl silicate
18
Spray
E



865
86
Alkyl silicate
23
Spray
E



866
50
Epoxy resin
30
Brush
E



867
51
Acrylic resin
77
Brush
E



868
51
Urethane resin
655
Brush
E



869
80
Polyester resin
47
Spray
E



870
46
Epoxy resin
43
Spray
E



871
51
Acrylic resin
52
Brush
E



872
86
Urethane resin
20
Brush
E



873
85
Polyester resin
200
Brush
E



874
82
Alkali silicate
22
Spray
E



875
81
Alkyl silicate
25
Spray
E



876
46
Alkali silicate
14
Spray
E
























TABLE 47









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





877
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


878
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


879
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


880
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


881
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


882
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


883
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


884
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


885
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


886
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


887
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


888
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


889
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


890
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


891
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


892
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


893
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


894
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


895
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


896
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







877
47
Urethane resin
112
Spray
E



878
48
Alkali silicate
24
Spray
E



879
51
Urethane resin
150
Spray
E



880
53
Alkali silicate
18
Spray
E



881
88
Alkyl silicate
19
Brush
E



882
85
Alkyl silicate
24
Spray
E



883
83
Urethane resin
99
Spray
E



884
82
Alkyl silicate
7
Spray
E



885
83
Epoxy resin
100
Spray
E



886
47
Alkyl silicate
27
Brush
E



887
51
Alkali silicate
15
Spray
E



888
52
Alkyl silicate
14
Spray
E



889
51
Urethane resin
55
Spray
E



890
52
Alkyl silicate
8
Spray
E



891
89
Urethane resin
122
Brush
E



892
85
Alkyl silicate
54
Spray
E



893
82
Alkali silicate
19
Spray
E



894
87
Alkyl silicate
25
Brush
E



895
88
Alkyl silicate
58
Spray
E



896
49
Alkyl silicate
21
Spray
E
























TABLE 48









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





897
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


898
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


899
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


900
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


901
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


902
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


903
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


904
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


905
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


906
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


907
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


908
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


909
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


910
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


911
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


912
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


913
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


914
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


915
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


916
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







897
50
Alkali silicate
19
Brush
E



898
51
Urethane resin
56
Spray
E



899
52
Alkyl silicate
77
Spray
E



900
53
Alkyl silicate
12
Spray
E



901
88
Alkyl silicate
64
Spray
E



902
85
Alkyl silicate
34
Brush
E



903
83
Alkali silicate
28
Spray
E



904
81
Urethane resin
109
Brush
E



905
80
Alkyl silicate
15
Spray
E



906
47
Alkyl silicate
14
Spray
E



907
49
Alkyl silicate
18
Spray
E



908
50
Urethane resin
122
Brush
E



909
51
Alkyl silicate
54
Spray
E



910
52
Alkali silicate
19
Spray
E



911
83
Alkyl silicate
25
Brush
E



912
88
Alkyl silicate
58
Spray
E



913
85
Alkyl silicate
21
Spray
E



914
83
Alkali silicate
19
Brush
E



915
82
Urethane resin
56
Spray
E



916
47
Alkyl silicate
77
Spray
E
























TABLE 49









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





917
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


918
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


919
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


920
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


921
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


922
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


923
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


924
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


925
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


926
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


927
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


928
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


929
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


930
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


931
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


932
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


933
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


934
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


935
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


936
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







917
46
Alkyl silicate
54
Spray
E



918
49
Alkali silicate
2
Spray
G



919
50
Alkali silicate
20
Spray
E



920
51
Alkali silicate
5
Spray
G



921
83
Alkyl silicate
20
Spray
E



922
82
Alkali silicate
15
Brush
E



923
88
Alkyl silicate
57
Brush
E



924
85
Alkali silicate
13
Brush
E



925
86
Alkyl silicate
22
Brush
E



926
47
Alkali silicate
20
Spray
E



927
48
Alkyl silicate
27
Spray
E



928
50
Alkali silicate
15
Spray
E



929
51
Alkyl silicate
35
Spray
E



930
52
Alkali silicate
34
Brush
E



931
88
Alkyl silicate
45
Brush
E



932
89
Alkali silicate
52
Brush
E



933
86
Alkyl silicate
23
Brush
E



934
87
Alkali silicate
5
Spray
E



935
86
Alkyl silicate
52
Brush
E



936
46
Alkali silicate
150
Brush
E
























TABLE 50









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





937
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


938
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


939
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


940
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


941
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


942
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


943
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


944
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


945
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


946
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


947
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


948
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


949
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


950
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


951
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


952
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


953
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


954
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


955
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


956
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes


957
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







937
49
Alkyl silicate
60
Brush
E



938
35
Alkali silicate
15
Spray
E



939
37
Alkyl silicate
24
Spray
E



940
36
Alkali silicate
34
Spray
E



941
38
Alkyl silicate
20
Brush
E



942
48
Alkali silicate
200
Brush
E



943
46
Alkyl silicate
56
Brush
E



944
51
Alkali silicate
34
Spray
E



945
46
Alkyl silicate
2
Spray
G



946
38
Alkali silicate
15
Spray
E



947
48
Alkali silicate
10
Spray
E



948
52
Alkyl silicate
125
Brush
E



949
30
Alkali silicate
24
Brush
E



950
76
Alkyl silicate
110
Brush
E



951
72
Alkali silicate
24
Brush
E



952
81
Alkyl silicate
2
Spray
G



953
64
Alkali silicate
37
Spray
E



954
69
Alkyl silicate
113
Brush
E



955
83
Alkali silicate
2
Spray
G



956
30
Alkyl silicate
75
Brush
E



957
83
Alkali silicate
30
Brush
E
























TABLE 51









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





958
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


959
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


960
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


961
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


962
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


963
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


964
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


965
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


966
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


967
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


968
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


969
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


970
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


971
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


972
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


973
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


974
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


975
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


976
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes


977
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







958
75
Alkyl silicate
34
Brush
E



959
76
Epoxy resin
124
Brush
E



960
72
Acrylic resin
15
Spray
E



961
71
Urethane resin
23
Spray
E



962
82
Polyester resin
157
Brush
E



963
81
Epoxy resin
26
Spray
E



964
83
Acrylic resin
38
Spray
E



965
50
Urethane resin
160
Brush
E



966
72
Polyester resin
27
Brush
E



967
47
Epoxy resin
180
Brush
E



968
47
Acrylic resin
26
Spray
E



969
52
Urethane resin
180
Brush
E



970
52
Polyester resin
15
Spray
E



971
50
Epoxy resin
2
Spray
G



972
46
Acrylic resin
28
Spray
E



973
47
Urethane resin
30
Spray
E



974
83
Polyester resin
2
Spray
G



975
52
Epoxy resin
157
Brush
E



976
89
Acrylic resin
28
Brush
E



977
85
Alkyl silicate
130
Brush
E
























TABLE 52









Percent of








Granularity
fine-grain



Mg solid



distribution
metal



solution



(peak diameter)
grains

Zn alloy

phase and
Any of



of Zn metal
among Zn
Chemical component
grain

Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





978
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


979
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


980
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


981
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


982
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


983
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


984
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


985
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


986
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


987
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


988
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


989
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


990
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


991
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


992
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


993
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


994
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


995
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


996
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes


997
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes













Coating details
















Total








metal




grain



Invention
content

Coat

Corrosion



Example
of coat

thickness
Coating
Test



No
(Mass %)
Base resin type
(μm)
method
Results







978
53
Alkyl silicate
29
Brush
E



979
88
Epoxy resin
30
Brush
E



980
85
Acrylic resin
120
Brush
E



981
52
Urethane resin
187
Brush
E



982
83
Polyester resin
28
Spray
E



983
88
Epoxy resin
5
Spray
E



984
49
Acrylic resin
35
Spray
E



985
50
Urethane resin
5
Spray
G



986
51
Polyester resin
200
Brush
E



987
83
Alkali silicate
25
Spray
E



988
82
Alkali silicate
15
Spray
E



989
88
Alkyl silicate
20
Spray
E



990
85
Alkali silicate
18
Spray
E



991
87
Alkyl silicate
22
Spray
E



992
86
Alkali silicate
19
Spray
E



993
46
Alkyl silicate
29
Spray
E



994
49
Alkali silicate
23
Spray
E



995
35
Alkyl silicate
21
Spray
E



996
30
Alkali silicate
19
Spray
E



997
76
Alkyl silicate
15
Spray
E























TABLE 53









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





 998
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes


 999
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes


1000
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes


1001
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes


1002
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes


1003
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes


1004
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes


1005
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes


1006
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes


1007
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes


1008
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes


1009
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes


1010
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes


1011
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes


1012
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes


1013
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes


1014
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes


1015
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes


1016
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes


1017
2.57
11.9
45.90
60.9
27.5
10.8
0.8
Yes
1.23
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







 998
Yes
72
Alkali silicate
18
Spray
E



 999
Yes
30
Alkyl silicate
22
Spray
E



1000
Yes
83
Alkyl silicate
21
Spray
E



1001
Yes
75
Alkyl silicate
29
Spray
E



1002
Yes
76
Alkali silicate
23
Spray
E



1003
Yes
72
Alkyl silicate
21
Spray
E



1004
Yes
83
Alkali silicate
19
Spray
E



1005
Yes
50
Alkyl silicate
21
Spray
E



1006
Yes
72
Alkali silicate
19
Spray
E



1007
Yes
50
Acrylic resin
654
Spray
E



1008
Yes
48
Alkali silicate
700
Spray
E



1009
Yes
75
Alkyl silicate
555
Spray
E



1010
Yes
55
Alkyl silicate
321
Spray
E



1011
Yes
38
Alkyl silicate
152
Brush
E



1012
Yes
48
Urethane resin
674
Spray
E



1013
Yes
76
Polyester resin
325
Spray
E



1014
Yes
72
Alkyl silicate
665
Spray
E



1015
Yes
75
Alkyl silicate
354
Brush
E



1016
Yes
76
Alkyl silicate
165
Spray
E



1017
Yes
72
Urethane resin
354
Spray
E























TABLE 54









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1018
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes


1019
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes


1020
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes


1021
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes


1022
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes


1023
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes


1024
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No


1025
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No


1026
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes


1027
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes


1028
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No


1029
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No


1030
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes


1031
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes


1032
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No


1033
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes


1034
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes


1035
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No


1036
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No


1037
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1018
Yes
49
Alkyl silicate
14
Spray
E



1019
Yes
89
Urethane resin
55
Spray
E



1020
Yes
90
Alkyl silicate
8
Spray
E



1021
Yes
86
Urethane resin
122
Brush
E



1022
Yes
48
Alkyl silicate
555
Spray
E



1023
Yes
47
Alkali silicate
19
Spray
E



1024
Yes
47
Alkyl silicate
25
Brush
E



1025
Yes
47
Alkyl silicate
58
Spray
E



1026
Yes
52
Alkyl silicate
685
Spray
E



1027
Yes
52
Alkali silicate
19
Brush
E



1028
Yes
52
Urethane resin
700
Spray
E



1029
Yes
88
Alkyl silicate
77
Spray
E



1030
Yes
87
Alkyl silicate
54
Spray
E



1031
Yes
89
Alkyl silicate
64
Spray
E



1032
Yes
90
Alkyl silicate
34
Brush
E



1033
Yes
91
Alkali silicate
28
Spray
E



1034
Yes
46
Urethane resin
109
Brush
E



1035
Yes
47
Alkyl silicate
15
Spray
E



1036
Yes
47
Alkyl silicate
14
Spray
E



1037
Yes
49
Alkyl silicate
18
Spray
E























TABLE 55









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1038
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes


1039
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No


1040
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No


1041
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes


1042
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes


1043
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes


1044
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes


1045
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes


1046
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No


1047
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No


1048
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes


1049
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes


1050
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No


1051
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes


1052
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes


1053
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No


1054
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes


1055
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes


1056
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No


1057
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1038
Yes
50
Alkali silicate
2
Spray
G



1039
Yes
87
Alkyl silicate
37
Spray
E



1040
Yes
83
Alkali silicate
12
Spray
E



1041
Yes
48
Alkyl silicate
160
Brush
E



1042
Yes
51
Alkali silicate
5
Brush
G



1043
Yes
51
Alkyl silicate
56
Brush
E



1044
Yes
87
Alkali silicate
2
Spray
G



1045
Yes
85
Alkyl silicate
18
Spray
E



1046
Yes
86
Alkyl silicate
23
Spray
E



1047
Yes
50
Epoxy resin
30
Brush
E



1048
Yes
51
Acrylic resin
77
Brush
E



1049
Yes
51
Urethane resin
655
Brush
E



1050
Yes
80
Polyester resin
47
Spray
E



1051
Yes
46
Epoxy resin
43
Spray
E



1052
Yes
51
Acrylic resin
52
Brush
E



1053
Yes
86
Urethane resin
20
Brush
E



1054
Yes
85
Polyester resin
200
Brush
E



1055
Yes
82
Alkali silicate
22
Spray
E



1056
Yes
81
Alkyl silicate
25
Spray
E



1057
Yes
46
Alkali silicate
14
Spray
E























TABLE 56









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1058
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes


1059
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes


1060
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes


1061
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes


1062
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes


1063
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes


1064
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes


1065
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes


1066
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes


1067
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes


1068
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes


1069
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes


1070
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes


1071
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes


1072
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes


1073
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes


1074
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes


1075
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes


1076
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes


1077
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1058
Yes
47
Urethane resin
112
Spray
E



1059
Yes
48
Alkali silicate
24
Spray
E



1060
Yes
51
Urethane resin
150
Spray
E



1061
Yes
53
Alkali silicate
18
Spray
E



1062
Yes
88
Alkyl silicate
19
Brush
E



1063
Yes
85
Alkyl silicate
24
Spray
E



1064
Yes
83
Urethane resin
99
Spray
E



1065
Yes
82
Alkyl silicate
7
Spray
E



1066
Yes
83
Epoxy resin
100
Spray
E



1067
Yes
47
Alkyl silicate
27
Brush
E



1068
Yes
51
Alkali silicate
15
Spray
E



1069
Yes
52
Alkyl silicate
14
Spray
E



1070
Yes
51
Urethane resin
55
Spray
E



1071
Yes
52
Alkyl silicate
8
Spray
E



1072
Yes
89
Urethane resin
122
Brush
E



1073
Yes
85
Alkyl silicate
54
Spray
E



1074
Yes
82
Alkali silicate
19
Spray
E



1075
Yes
87
Alkyl silicate
25
Brush
E



1076
Yes
88
Alkyl silicate
58
Spray
E



1077
Yes
49
Alkyl silicate
21
Spray
E























TABLE 57









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1078
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes


1079
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes


1080
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes


1081
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes


1082
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes


1083
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes


1084
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes


1085
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes


1086
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes


1087
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes


1088
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes


1089
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes


1090
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes


1091
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes


1092
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes


1093
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes


1094
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes


1095
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes


1096
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes


1097
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1078
Yes
50
Alkali silicate
19
Brush
E



1079
Yes
51
Urethane resin
56
Spray
E



1080
Yes
52
Alkyl silicate
77
Spray
E



1081
Yes
53
Alkyl silicate
12
Spray
E



1082
Yes
88
Alkyl silicate
64
Spray
E



1083
Yes
85
Alkyl silicate
34
Brush
E



1084
Yes
83
Alkali silicate
28
Spray
E



1085
Yes
81
Urethane resin
109
Brush
E



1086
Yes
80
Alkyl silicate
15
Spray
E



1087
Yes
47
Alkyl silicate
14
Spray
E



1088
Yes
49
Alkyl silicate
18
Spray
E



1089
Yes
50
Urethane resin
122
Brush
E



1090
Yes
51
Alkyl silicate
54
Spray
E



1091
Yes
52
Alkali silicate
19
Spray
E



1092
Yes
83
Alkyl silicate
25
Brush
E



1093
Yes
88
Alkyl silicate
58
Spray
E



1094
Yes
85
Alkyl silicate
21
Spray
E



1095
Yes
83
Alkali silicate
19
Brush
E



1096
Yes
82
Urethane resin
56
Spray
E



1097
Yes
47
Alkyl silicate
77
Spray
E























TABLE 58









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1098
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes


1099
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes


1100
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes


1101
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes


1102
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes


1103
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes


1104
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes


1105
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes


1106
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes


1107
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes


1108
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes


1109
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes


1110
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes


1111
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes


1112
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes


1113
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes


1114
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes


1115
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes


1116
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes


1117
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1098
Yes
46
Alkyl silicate
54
Spray
E



1099
Yes
49
Alkali silicate
2
Spray
G



1100
Yes
50
Alkali silicate
20
Spray
E



1101
Yes
51
Alkali silicate
5
Spray
G



1102
Yes
83
Alkyl silicate
20
Spray
E



1103
Yes
82
Alkali silicate
15
Brush
E



1104
Yes
88
Alkyl silicate
57
Brush
E



1105
Yes
85
Alkali silicate
13
Brush
E



1106
Yes
86
Alkyl silicate
22
Brush
E



1107
Yes
47
Alkali silicate
20
Spray
E



1108
Yes
48
Alkyl silicate
27
Spray
E



1109
Yes
50
Alkali silicate
15
Spray
E



1110
Yes
51
Alkyl silicate
35
Spray
E



1111
Yes
52
Alkali silicate
34
Brush
E



1112
Yes
88
Alkyl silicate
45
Brush
E



1113
Yes
89
Alkali silicate
52
Brush
E



1114
Yes
86
Alkyl silicate
23
Brush
E



1115
Yes
87
Alkali silicate
5
Spray
E



1116
Yes
86
Alkyl silicate
52
Brush
E



1117
Yes
46
Alkali silicate
150
Brush
E























TABLE 59









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1118
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes


1119
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes


1120
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes


1121
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes


1122
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes


1123
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes


1124
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes


1125
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes


1126
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes


1127
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes


1128
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes


1129
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes


1130
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes


1131
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes


1132
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes


1133
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes


1134
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes


1135
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes


1136
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes


1137
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1118
Yes
49
Alkyl silicate
60
Brush
E



1119
Yes
35
Alkali silicate
15
Spray
E



1120
Yes
37
Alkyl silicate
24
Spray
E



1121
Yes
36
Alkali silicate
34
Spray
E



1122
Yes
38
Alkyl silicate
20
Brush
E



1123
Yes
48
Alkali silicate
200
Brush
E



1124
Yes
46
Alkyl silicate
56
Brush
E



1125
Yes
51
Alkali silicate
34
Spray
E



1126
Yes
46
Alkyl silicate
2
Spray
G



1127
Yes
38
Alkali silicate
15
Spray
E



1128
Yes
48
Alkali silicate
10
Spray
E



1129
Yes
52
Alkyl silicate
125
Brush
E



1130
Yes
30
Alkali silicate
24
Brush
E



1131
Yes
76
Alkyl silicate
110
Brush
E



1132
Yes
72
Alkali silicate
24
Brush
E



1133
Yes
81
Alkyl silicate
2
Spray
G



1134
Yes
64
Alkali silicate
37
Spray
E



1135
Yes
69
Alkyl silicate
113
Brush
E



1136
Yes
83
Alkali silicate
2
Spray
G



1137
Yes
30
Alkyl silicate
75
Brush
E























TABLE 60









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1138
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes


1139
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes


1140
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes


1141
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes


1142
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes


1143
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes


1144
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes


1145
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes


1146
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes


1147
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes


1148
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes


1149
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes


1150
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes


1151
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes


1152
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes


1153
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes


1154
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes


1155
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes


1156
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes


1157
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1138
Yes
83
Alkali silicate
30
Brush
E



1139
Yes
75
Alkyl silicate
34
Brush
E



1140
Yes
76
Epoxy resin
124
Brush
E



1141
Yes
72
Acrylic resin
15
Spray
E



1142
Yes
71
Urethane resin
23
Spray
E



1143
Yes
82
Polyester resin
157
Brush
E



1144
Yes
81
Epoxy resin
26
Spray
E



1145
Yes
83
Acrylic resin
38
Spray
E



1146
Yes
50
Urethane resin
160
Brush
E



1147
Yes
72
Polyester resin
27
Brush
E



1148
Yes
47
Epoxy resin
180
Brush
E



1149
Yes
47
Acrylic resin
26
Spray
E



1150
Yes
52
Urethane resin
180
Brush
E



1151
Yes
52
Polyester resin
15
Spray
E



1152
Yes
50
Epoxy resin
2
Spray
G



1153
Yes
46
Acrylic resin
28
Spray
E



1154
Yes
47
Urethane resin
30
Spray
E



1155
Yes
83
Polyester resin
2
Spray
G



1156
Yes
52
Epoxy resin
157
Brush
E



1157
Yes
89
Acrylic resin
28
Brush
E























TABLE 61









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1158
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes


1159
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes


1160
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes


1161
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes


1162
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes


1163
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes


1164
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes


1165
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes


1166
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes


1167
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes


1168
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes


1169
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes


1170
2.57
13.25
40.76
81.4
18.6
0
0
Yes
1.16
Yes


1171
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes


1172
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes


1173
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes


1174
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes


1175
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes


1176
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes


1177
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1158
Yes
85
Alkyl silicate
130
Brush
E



1159
Yes
53
Alkyl silicate
29
Brush
E



1160
Yes
88
Epoxy resin
30
Brush
E



1161
Yes
85
Acrylic resin
120
Brush
E



1162
Yes
52
Urethane resin
187
Brush
E



1163
Yes
83
Polyester resin
28
Spray
E



1164
Yes
88
Epoxy resin
5
Spray
E



1165
Yes
49
Acrylic resin
35
Spray
E



1166
Yes
50
Urethane resin
5
Spray
G



1167
Yes
51
Polyester resin
200
Brush
E



1168
Yes
83
Alkali silicate
25
Spray
E



1169
Yes
82
Alkali silicate
15
Spray
E



1170
Yes
88
Alkyl silicate
20
Spray
E



1171
Yes
85
Alkali silicate
18
Spray
E



1172
Yes
87
Alkyl silicate
22
Spray
E



1173
Yes
86
Alkali silicate
19
Spray
E



1174
Yes
46
Alkyl silicate
29
Spray
E



1175
Yes
49
Alkali silicate
23
Spray
E



1176
Yes
35
Alkyl silicate
21
Spray
E



1177
Yes
30
Alkali silicate
19
Spray
E























TABLE 62









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1178
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes


1179
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes


1180
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes


1181
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes


1182
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes


1183
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes


1184
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes


1185
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes


1186
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes


1187
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes


1188
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes


1189
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes


1190
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes


1191
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes


1192
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes


1193
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes


1194
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes


1195
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes


1196
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes


1197
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes


1198
2.57
11.9
45.90
60.9
27.5
10.8
0.8
Yes
1.23
Yes














Any of
Coating details

















MgZn2,
Total








Mg2Zn11,
metal




Mg2Zn3,
grain



Invention
MgZn,
content

Coat



Example
Mg7Zn3
of coat

thickness
Coating



No
present?
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1178
Yes
76
Alkyl silicate
15
Spray
E



1179
Yes
72
Alkali silicate
18
Spray
E



1180
Yes
30
Alkyl silicate
22
Spray
E



1181
Yes
83
Alkyl silicate
21
Spray
E



1182
Yes
75
Alkyl silicate
29
Spray
E



1183
Yes
76
Alkali silicate
23
Spray
E



1184
Yes
72
Alkyl silicate
21
Spray
E



1185
Yes
83
Alkali silicate
19
Spray
E



1186
Yes
50
Alkyl silicate
21
Spray
E



1187
Yes
72
Alkali silicate
19
Spray
E



1188
Yes
50
Acrylic resin
654
Spray
E



1189
Yes
48
Alkali silicate
700
Spray
E



1190
Yes
75
Alkyl silicate
555
Spray
E



1191
Yes
55
Alkyl silicate
321
Spray
E



1192
Yes
38
Alkyl silicate
152
Brush
E



1193
Yes
48
Urethane resin
674
Spray
E



1194
Yes
76
Polyester resin
325
Spray
E



1195
Yes
72
Alkyl silicate
665
Spray
E



1196
Yes
75
Alkyl silicate
354
Brush
E



1197
Yes
76
Alkyl silicate
165
Spray
E



1198
Yes
72
Urethane resin
354
Spray
E























TABLE 63









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1199
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes


1200
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes


1201
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes


1202
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes


1203
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes


1204
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes


1205
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No


1206
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No


1207
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes


1208
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes


1209
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No


1210
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No


1211
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes


1212
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes


1213
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No


1214
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes


1215
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes


1216
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No


1217
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No















Any of

Coating details
















MgZn2,

Total







Mg2Zn11,

metal



Mg2Zn3,

grain


Invention
MgZn,
Number
content

Coat


Example
Mg7Zn3
of
of coat

thickness
Coating


No
present?
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1199
Yes
2
49
Alkyl silicate
14
Spray
E


1200
Yes
2
89
Urethane resin
55
Spray
E


1201
Yes
2
90
Alkyl silicate
8
Spray
E


1202
Yes
2
86
Urethane resin
122
Brush
E


1203
Yes
6
48
Alkyl silicate
555
Spray
E


1204
Yes
6
47
Alkali silicate
19
Spray
E


1205
Yes
7
47
Alkyl silicate
25
Brush
E


1206
Yes
6
47
Alkyl silicate
58
Spray
E


1207
Yes
2
52
Alkyl silicate
685
Spray
E


1208
Yes
7
52
Alkali silicate
19
Brush
E


1209
Yes
2
52
Urethane resin
700
Spray
E


1210
Yes
6
88
Alkyl silicate
77
Spray
E


1211
Yes
6
87
Alkyl silicate
54
Spray
E


1212
Yes
2
89
Alkyl silicate
64
Spray
E


1213
Yes
2
90
Alkyl silicate
34
Brush
E


1214
Yes
7
91
Alkali silicate
28
Spray
E


1215
Yes
6
46
Urethane resin
109
Brush
E


1216
Yes
7
47
Alkyl silicate
15
Spray
E


1217
Yes
2
47
Alkyl silicate
14
Spray
E






















TABLE 64









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1218
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes


1219
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes


1220
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No


1221
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No


1222
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes


1223
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes


1224
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes


1225
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes


1226
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes


1227
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No


1228
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No


1229
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes


1230
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes


1231
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No


1232
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes


1233
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes


1234
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No


1235
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes


1236
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes















Any of

Coating details
















MgZn2,

Total







Mg2Zn11,

metal



Mg2Zn3,

grain


Invention
MgZn,
Number
content

Coat


Example
Mg7Zn3
of
of coat

thickness
Coating


No
present?
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1218
Yes
7
49
Alkyl silicate
18
Spray
E


1219
Yes
6
50
Alkali silicate
2
Spray
G


1220
Yes
7
87
Alkyl silicate
37
Spray
E


1221
Yes
6
83
Alkali silicate
12
Spray
E


1222
Yes
7
48
Alkyl silicate
160
Brush
E


1223
Yes
6
51
Alkali silicate
5
Brush
G


1224
Yes
2
51
Alkyl silicate
56
Brush
E


1225
Yes
7
87
Alkali silicate
2
Spray
G


1226
Yes
6
85
Alkyl silicate
18
Spray
E


1227
Yes
6
86
Alkyl silicate
23
Spray
E


1228
Yes
6
50
Epoxy resin
30
Brush
E


1229
Yes
2
51
Acrylic resin
77
Brush
E


1230
Yes
6
51
Urethane resin
655
Brush
E


1231
Yes
7
80
Polyester resin
47
Spray
E


1232
Yes
2
46
Epoxy resin
43
Spray
E


1233
Yes
6
51
Acrylic resin
52
Brush
E


1234
Yes
2
86
Urethane resin
20
Brush
E


1235
Yes
6
85
Polyester resin
200
Brush
E


1236
Yes
7
82
Alkali silicate
22
Spray
E






















TABLE 65









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1237
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No


1238
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes


1239
2.65
8.56
66.99
98.6
1.40
0
0
No
1.22
Yes


1240
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes


1241
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes


1242
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes


1243
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes


1244
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes


1245
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes


1246
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes


1247
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes


1248
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes


1249
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes


1250
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes


1251
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes


1252
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes


1253
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes


1254
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes


1255
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes















Any of

Coating details
















MgZn2,

Total







Mg2Zn11,

metal



Mg2Zn3,

grain


Invention
MgZn,
Number
content

Coat


Example
Mg7Zn3
of
of coat

thickness
Coating


No
present?
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1237
Yes
7
81
Alkyl silicate
25
Spray
E


1238
Yes
2
46
Alkali silicate
14
Spray
E


1239
Yes
2
47
Urethane resin
112
Spray
E


1240
Yes
6
48
Alkali silicate
24
Spray
E


1241
Yes
7
51
Urethane resin
150
Spray
E


1242
Yes
6
53
Alkali silicate
18
Spray
E


1243
Yes
7
88
Alkyl silicate
19
Brush
E


1244
Yes
6
85
Alkyl silicate
24
Spray
E


1245
Yes
2
83
Urethane resin
99
Spray
E


1246
Yes
2
82
Alkyl silicate
7
Spray
E


1247
Yes
6
83
Epoxy resin
100
Spray
E


1248
Yes
7
47
Alkyl silicate
27
Brush
E


1249
Yes
6
51
Alkali silicate
15
Spray
E


1250
Yes
6
52
Alkyl silicate
14
Spray
E


1251
Yes
2
51
Urethane resin
55
Spray
E


1252
Yes
7
52
Alkyl silicate
8
Spray
E


1253
Yes
2
89
Urethane resin
122
Brush
E


1254
Yes
2
85
Alkyl silicate
54
Spray
E


1255
Yes
6
82
Alkali silicate
19
Spray
E






















TABLE 66









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1256
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes


1257
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes


1258
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes


1259
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes


1260
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes


1261
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes


1262
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes


1263
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes


1264
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes


1265
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes


1266
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes


1267
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes


1268
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes


1269
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes


1270
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes


1271
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes


1272
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes


1273
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes


1274
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes















Any of

Coating details
















MgZn2,

Total







Mg2Zn11,

metal



Mg2Zn3,

grain


Invention
MgZn,
Number
content

Coat


Example
Mg7Zn3
of
of coat

thickness
Coating


No
present?
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1256
Yes
7
87
Alkyl silicate
25
Brush
E


1257
Yes
7
88
Alkyl silicate
58
Spray
E


1258
Yes
6
49
Alkyl silicate
21
Spray
E


1259
Yes
7
50
Alkali silicate
19
Brush
E


1260
Yes
7
51
Urethane resin
56
Spray
E


1261
Yes
6
52
Alkyl silicate
77
Spray
E


1262
Yes
7
53
Alkyl silicate
12
Spray
E


1263
Yes
2
88
Alkyl silicate
64
Spray
E


1264
Yes
7
85
Alkyl silicate
34
Brush
E


1265
Yes
7
83
Alkali silicate
28
Spray
E


1266
Yes
2
81
Urethane resin
109
Brush
E


1267
Yes
6
80
Alkyl silicate
15
Spray
E


1268
Yes
6
47
Alkyl silicate
14
Spray
E


1269
Yes
7
49
Alkyl silicate
18
Spray
E


1270
Yes
7
50
Urethane resin
122
Brush
E


1271
Yes
6
51
Alkyl silicate
54
Spray
E


1272
Yes
7
52
Alkali silicate
19
Spray
E


1273
Yes
2
83
Alkyl silicate
25
Brush
E


1274
Yes
2
88
Alkyl silicate
58
Spray
E






















TABLE 67









Percent of







Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg



grains/Zn
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or
Ave
present on














Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?





1275
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes


1276
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes


1277
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes


1278
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes


1279
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes


1280
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes


1281
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes


1282
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes


1283
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes


1284
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes


1285
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes


1286
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes


1287
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes


1288
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes


1289
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes


1290
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes


1291
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes


1292
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes


1293
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes















Any of

Coating details
















MgZn2,

Total







Mg2Zn11,

metal



Mg2Zn3,

grain


Invention
MgZn,
Number
content

Coat


Example
Mg7Zn3
of
of coat

thickness
Coating


No
present?
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1275
Yes
6
85
Alkyl silicate
21
Spray
E


1276
Yes
7
83
Alkali silicate
19
Brush
E


1277
Yes
6
82
Urethane resin
56
Spray
E


1278
Yes
2
47
Alkyl silicate
77
Spray
E


1279
Yes
2
46
Alkyl silicate
54
Spray
E


1280
Yes
7
49
Alkali silicate
2
Spray
G


1281
Yes
6
50
Alkali silicate
20
Spray
E


1282
Yes
7
51
Alkali silicate
5
Spray
G


1283
Yes
7
83
Alkyl silicate
20
Spray
E


1284
Yes
6
82
Alkali silicate
15
Brush
E


1285
Yes
2
88
Alkyl silicate
57
Brush
E


1286
Yes
7
85
Alkali silicate
13
Brush
E


1287
Yes
2
86
Alkyl silicate
22
Brush
E


1288
Yes
2
47
Alkali silicate
20
Spray
E


1289
Yes
7
48
Alkyl silicate
27
Spray
E


1290
Yes
2
50
Alkali silicate
15
Spray
E


1291
Yes
7
51
Alkyl silicate
35
Spray
E


1292
Yes
2
52
Alkali silicate
34
Brush
E


1293
Yes
6
88
Alkyl silicate
45
Brush
E























TABLE 68









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1294
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


1295
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


1296
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


1297
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


1298
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes


1299
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


1300
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


1301
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


1302
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


1303
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


1304
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


1305
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


1306
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


1307
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


1308
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


1309
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


1310
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


1311
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


1312
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1294
6
89
Alkali silicate
52
Brush
E



1295
7
86
Alkyl silicate
23
Brush
E



1296
6
87
Alkali silicate
5
Spray
E



1297
2
86
Alkyl silicate
52
Brush
E



1298
2
46
Alkali silicate
150
Brush
E



1299
2
49
Alkyl silicate
60
Brush
E



1300
2
35
Alkali silicate
15
Spray
E



1301
2
37
Alkyl silicate
24
Spray
E



1302
2
36
Alkali silicate
34
Spray
E



1303
6
38
Alkyl silicate
20
Brush
E



1304
6
48
Alkali silicate
200
Brush
E



1305
7
46
Alkyl silicate
56
Brush
E



1306
6
51
Alkali silicate
34
Spray
E



1307
2
46
Alkyl silicate
2
Spray
G



1308
7
38
Alkali silicate
15
Spray
E



1309
2
48
Alkali silicate
10
Spray
E



1310
6
52
Alkyl silicate
125
Brush
E



1311
6
30
Alkali silicate
24
Brush
E



1312
2
76
Alkyl silicate
110
Brush
E
























TABLE 69









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(peak diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1313
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


1314
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


1315
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


1316
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


1317
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


1318
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes


1319
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


1320
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


1321
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


1322
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


1323
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


1324
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


1325
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


1326
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


1327
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


1328
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


1329
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


1330
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


1331
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1313
2
72
Alkali silicate
24
Brush
E



1314
7
81
Alkyl silicate
2
Spray
G



1315
6
64
Alkali silicate
37
Spray
E



1316
7
69
Alkyl silicate
113
Brush
E



1317
2
83
Alkali silicate
2
Spray
G



1318
7
30
Alkyl silicate
75
Brush
E



1319
6
83
Alkali silicate
30
Brush
E



1320
7
75
Alkyl silicate
34
Brush
E



1321
6
76
Epoxy resin
124
Brush
E



1322
7
72
Acrylic resin
15
Spray
E



1323
6
71
Urethane resin
23
Spray
E



1324
2
82
Polyester resin
157
Brush
E



1325
7
81
Epoxy resin
26
Spray
E



1326
6
83
Acrylic resin
38
Spray
E



1327
6
50
Urethane resin
160
Brush
E



1328
6
72
Polyester resin
27
Brush
E



1329
2
47
Epoxy resin
180
Brush
E



1330
6
47
Acrylic resin
26
Spray
E



1331
7
52
Urethane resin
180
Brush
E
























TABLE 70









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1380
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


1381
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


1382
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes
Yes


1383
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


1384
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


1385
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


1386
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


1387
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


1388
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


1389
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


1390
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


1391
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


1392
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


1393
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


1394
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


1395
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


1396
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


1397
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


1398
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


1399
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1380
2
49
Alkyl silicate
14
Spray
E



1381
2
89
Urethane resin
55
Spray
E



1382
2
90
Alkyl silicate
8
Spray
E



1383
2
86
Urethane resin
122
Brush
E



1384
6
48
Alkyl silicate
555
Spray
E



1385
6
47
Alkali silicate
19
Spray
E



1386
7
47
Alkyl silicate
25
Brush
E



1387
6
47
Alkyl silicate
58
Spray
E



1388
2
52
Alkyl silicate
685
Spray
E



1389
7
52
Alkali silicate
19
Brush
E



1390
2
52
Urethane resin
700
Spray
E



1391
6
88
Alkyl silicate
77
Spray
E



1392
6
87
Alkyl silicate
54
Spray
E



1393
2
89
Alkyl silicate
64
Spray
E



1394
2
90
Alkyl silicate
34
Brush
E



1395
7
91
Alkali silicate
28
Spray
E



1396
6
46
Urethane resin
109
Brush
E



1397
7
47
Alkyl silicate
15
Spray
E



1398
2
47
Alkyl silicate
14
Spray
E



1399
7
49
Alkyl silicate
18
Spray
E
























TABLE 71









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1400
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


1401
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


1402
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


1403
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


1404
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


1405
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


1406
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


1407
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


1408
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


1409
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


1410
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


1411
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


1412
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


1413
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


1414
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


1415
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


1416
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


1417
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


1418
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


1419
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1400
6
50
Alkali silicate
2
Spray
G



1401
7
87
Alkyl silicate
37
Spray
E



1402
6
83
Alkali silicate
12
Spray
E



1403
7
48
Alkyl silicate
160
Brush
E



1404
6
51
Alkali silicate
5
Brush
G



1405
2
51
Alkyl silicate
56
Brush
E



1406
7
87
Alkali silicate
2
Spray
G



1407
6
85
Alkyl silicate
18
Spray
E



1408
6
86
Alkyl silicate
23
Spray
E



1409
6
50
Epoxy resin
30
Brush
E



1410
2
51
Acrylic resin
77
Brush
E



1411
6
51
Urethane resin
655
Brush
E



1412
7
80
Polyester resin
47
Spray
E



1413
2
46
Epoxy resin
43
Spray
E



1414
6
51
Acrylic resin
52
Brush
E



1415
2
86
Urethane resin
20
Brush
E



1416
6
85
Polyester resin
200
Brush
E



1417
7
82
Alkali silicate
22
Spray
E



1418
7
81
Alkyl silicate
25
Spray
E



1419
2
46
Alkali silicate
14
Spray
E
























TABLE 72









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1420
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


1421
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


1422
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


1423
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


1424
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


1425
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


1426
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


1427
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


1428
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


1429
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


1430
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


1431
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


1432
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


1433
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


1434
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


1435
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


1436
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


1437
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


1438
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


1439
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1420
2
47
Urethane resin
112
Spray
E



1421
6
48
Alkali silicate
24
Spray
E



1422
7
51
Urethane resin
150
Spray
E



1423
6
53
Alkali silicate
18
Spray
E



1424
7
88
Alkyl silicate
19
Brush
E



1425
6
85
Alkyl silicate
24
Spray
E



1426
2
83
Urethane resin
99
Spray
E



1427
2
82
Alkyl silicate
7
Spray
E



1428
6
83
Epoxy resin
100
Spray
E



1429
7
47
Alkyl silicate
27
Brush
E



1430
6
51
Alkali silicate
15
Spray
E



1431
6
52
Alkyl silicate
14
Spray
E



1432
2
51
Urethane resin
55
Spray
E



1433
7
52
Alkyl silicate
8
Spray
E



1434
2
89
Urethane resin
122
Brush
E



1435
2
85
Alkyl silicate
54
Spray
E



1436
6
82
Alkali silicate
19
Spray
E



1437
7
87
Alkyl silicate
25
Brush
E



1438
7
88
Alkyl silicate
58
Spray
E



1439
6
49
Alkyl silicate
21
Spray
E
























TABLE 73









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1440
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


1441
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


1442
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


1443
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


1444
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


1445
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


1446
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


1447
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


1448
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


1449
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


1450
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


1451
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


1452
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


1453
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


1454
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


1455
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


1456
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


1457
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


1458
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


1459
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1440
7
50
Alkali silicate
19
Brush
E



1441
7
51
Urethane resin
56
Spray
E



1442
6
52
Alkyl silicate
77
Spray
E



1443
7
53
Alkyl silicate
12
Spray
E



1444
2
88
Alkyl silicate
64
Spray
E



1445
7
85
Alkyl silicate
34
Bursh
E



1446
7
83
Alkali silicate
28
Spray
E



1447
2
81
Urethane resin
109
Bursh
E



1448
6
80
Alkyl silicate
15
Spray
E



1449
6
47
Alkyl silicate
14
Spray
E



1450
7
49
Alkyl silicate
18
Spray
E



1451
7
50
Urethane resin
122
Brush
E



1452
6
51
Alkyl silicate
54
Spray
E



1453
7
52
Alkali silicate
19
Spray
E



1454
2
83
Alkyl silicate
25
Brush
E



1455
2
88
Alkyl silicate
58
Spray
E



1456
6
85
Alkyl silicate
21
Spray
E



1457
7
83
Alkali silicate
19
Brush
E



1458
6
82
Urethane resin
56
Spray
E



1459
2
47
Alkyl silicate
77
Spray
E
























TABLE 74









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1460
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


1461
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


1462
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


1463
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


1464
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


1465
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


1466
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


1467
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


1468
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


1469
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


1470
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


1471
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


1472
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


1473
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


1474
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


1475
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


1476
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


1477
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


1478
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


1479
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1460
2
46
Alkyl silicate
54
Spray
E



1461
7
49
Alkali silicate
2
Spray
G



1462
6
50
Alkali silicate
20
Spray
E



1463
7
51
Alkali silicate
5
Spray
G



1464
7
83
Alkyl silicate
20
Spray
E



1465
6
82
Alkali silicate
15
Brush
E



1466
2
88
Alkyl silicate
57
Brush
E



1467
7
85
Alkali silicate
13
Brush
E



1468
2
86
Alkyl silicate
22
Brush
E



1469
2
47
Alkali silicate
20
Spray
E



1470
7
48
Alkyl silicate
27
Spray
E



1471
2
50
Alkali silicate
15
Spray
E



1472
7
51
Alkyl silicate
35
Spray
E



1473
2
52
Alkali silicate
34
Brush
E



1474
6
88
Alkyl silicate
45
Brush
E



1475
6
89
Alkali silicate
52
Brush
E



1476
7
86
Alkyl silicate
23
Brush
E



1477
6
87
Alkali silicate
5
Spray
E



1478
2
86
Alkyl silicate
52
Brush
E



1479
2
46
Alkali silicate
150
Brush
E
























TABLE 75









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1480
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


1481
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


1482
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


1483
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


1484
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


1485
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


1486
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


1487
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


1488
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


1489
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


1490
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


1491
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


1492
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


1493
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


1494
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


1495
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


1496
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


1497
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


1498
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


1499
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1480
2
49
Alkyl silicate
60
Brush
E



1481
2
35
Alkali silicate
15
Spray
E



1482
2
37
Alkyl silicate
24
Spray
E



1483
2
36
Alkali silicate
34
Spray
E



1484
6
38
Alkyl silicate
20
Brush
E



1485
6
48
Alkali silicate
200
Brush
E



1486
7
46
Alkyl silicate
56
Brush
E



1487
6
51
Alkali silicate
34
Spray
E



1488
2
46
Alkyl silicate
2
Spray
G



1489
7
38
Alkali silicate
15
Spray
E



1490
2
48
Alkali silicate
10
Spray
E



1491
6
52
Alkyl silicate
125
Brush
E



1492
6
30
Alkali silicate
24
Brush
E



1493
2
76
Alkyl silicate
110
Brush
E



1494
2
72
Alkali silicate
24
Brush
E



1495
7
81
Alkyl silicate
2
Spray
G



1496
6
64
Alkali silicate
37
Spray
E



1497
7
69
Alkyl silicate
113
Brush
E



1498
2
83
Alkali silicate
2
Spray
G



1499
7
30
Alkyl silicate
75
Brush
E
























TABLE 76









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1500
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


1501
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


1502
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


1503
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


1504
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


1505
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


1506
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


1507
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


1508
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


1509
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


1510
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


1511
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


1512
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


1513
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


1514
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


1515
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


1516
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


1517
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


1518
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


1519
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1500
6
83
Alkali silicate
30
Brush
E



1501
7
75
Alkyl silicate
34
Brush
E



1502
6
76
Epoxy resin
124
Brush
E



1503
7
72
Acrylic resin
15
Spray
E



1504
6
71
Urethane resin
23
Spray
E



1505
2
82
Polyester resin
157
Brush
E



1506
7
81
Epoxy resin
26
Spray
E



1507
6
83
Acrylic resin
38
Spray
E



1508
6
50
Urethane resin
160
Brush
E



1509
6
72
Polyester resin
27
Brush
E



1510
2
47
Epoxy resin
180
Brush
E



1511
6
47
Acrylic resin
26
Spray
E



1512
7
52
Urethane resin
180
Brush
E



1513
2
52
Polyester resin
15
Spray
E



1514
6
50
Epoxy resin
2
Spray
G



1515
2
46
Acrylic resin
28
Spray
E



1516
6
47
Urethane resin
30
Spray
E



1517
7
83
Polyester resin
2
Spray
G



1518
7
52
Epoxy resin
157
Brush
E



1519
2
89
Acrylic resin
28
Brush
E
























TABLE 77









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1520
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


1521
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


1522
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


1523
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


1524
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


1525
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


1526
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


1527
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


1528
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


1529
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


1530
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


1531
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


1532
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


1533
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


1534
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


1535
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


1536
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


1537
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


1538
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


1539
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1520
2
85
Alkyl silicate
130
Brush
E



1521
6
53
Alkyl silicate
29
Brush
E



1522
7
88
Epoxy resin
30
Brush
E



1523
6
85
Acrylic resin
120
Brush
E



1524
7
52
Urethane resin
187
Brush
E



1525
6
83
Polyester resin
28
Spray
E



1526
2
88
Epoxy resin
5
Spray
E



1527
2
49
Acrylic resin
35
Spray
E



1528
6
50
Urethane resin
5
Spray
G



1529
7
51
Polyester resin
200
Brush
E



1530
6
83
Alkali silicate
25
Spray
E



1531
6
82
Alkali silicate
15
Spray
E



1532
2
88
Alkyl silicate
20
Spray
E



1533
7
85
Alkali silicate
18
Spray
E



1534
2
87
Alkyl silicate
22
Spray
E



1535
2
86
Alkali silicate
19
Spray
E



1536
6
46
Alkyl silicate
29
Spray
E



1537
7
49
Alkali silicate
23
Spray
E



1538
7
35
Alkyl silicate
21
Spray
E



1539
6
30
Alkali silicate
19
Spray
E
























TABLE 78









Percent of








Granularity
fine-grain



distribution
metal



Mg solid



(Ave diameter)
grains

Zn alloy

solution
Any of



of Zn metal
among Zn
Chemical component
grain

phase and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1540
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes


1541
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes


1542
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes


1543
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes


1544
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes


1545
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes


1546
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes


1547
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes


1548
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes


1549
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes


1550
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


1551
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes


1552
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes


1553
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


1554
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes


1555
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes


1556
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes


1557
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes


1558
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes


1559
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes


1560
2.57
11.9
45.90
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes













Coating details


















Total









metal





grain



Invention
Number
content

Coat



Example
of
of coat

thickness
Coating



No
faces
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1540
7
76
Alkyl silicate
15
Spray
E



1541
7
72
Alkali silicate
18
Spray
E



1542
6
30
Alkyl silicate
22
Spray
E



1543
7
83
Alkyl silicate
21
Spray
E



1544
2
75
Alkyl silicate
29
Spray
E



1545
7
76
Alkali silicate
23
Spray
E



1546
7
72
Alkyl silicate
21
Spray
E



1547
2
83
Alkali silicate
19
Spray
E



1548
6
50
Alkyl silicate
21
Spray
E



1549
6
72
Alkali silicate
19
Spray
E



1550
2
50
Acrylic resin
654
Spray
E



1551
6
48
Alkali silicate
700
Spray
E



1552
7
75
Alkyl silicate
555
Spray
E



1553
7
55
Alkyl silicate
321
Spray
E



1554
6
38
Alkyl silicate
152
Brush
E



1555
7
48
Urethane resin
674
Spray
E



1556
7
76
Polyester resin
325
Spray
E



1557
6
72
Alkyl silicate
665
Spray
E



1558
7
75
Alkyl silicate
354
Brush
E



1559
6
76
Alkyl silicate
165
Spray
E



1560
7
72
Urethane resin
354
Spray
E

























TABLE 79









Granularity
Percent of









distribution
fine-grain


Ratio of fine




of Zn
metal


metal grains




metal grains/
grains

Total
in coat




Zn alloy
among Zn
Chemical component
metal
outermost


Inven-

grains (Ave
metal
content of Zn metal
grain
surface layer


tion
Average
grain diameter)
grains/
grains/Zn alloy
content
10% thickness
Coat


Exam-
grain
(μm)
Zn alloy
grains
of
to total fine
thickness
Time to red
















ple
diameter
Fine
Coarse
grains
(Mass %)
coat
metal grains
(μm)
rusting





















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
(Mass %)
(Mass %)
Inorganic
Organic
Organic
Inorganic
























374
—
2.35
9.25
35.87
96.0
8.9
0
0
47
55.7
24.6
125
E
E


375
—
2.49
9.56
42.04
97.5
7.8
0
0
80
64.5
23.8
167
E
E


376
—
1.99
9.84
6.55
98.4
5.6
0
0
52
68.9
15.2
28
E
E


377
—
2.21
8.64
66.80
95.5
10.2
0
0
89
64.7
10.6
34
E
E


378
—
2.64
10.55
80.03
96.2
5.6
0
0
34
77.9
10.7
256
E
E


379
—
2.55
8.56
67.55
98.0
7.8
0
0
78
43.7
15
24
G
G


380
—
2.94
9.99
43.38
94.5
8.9
0
0
34
7.8
10.5
96
G
G


381
—
1.98
8.98
13.52
94.0
6.0
0
0
89
16.0
14.5
94
G
G


382
—
2.37
8.99
68.14
97.5
12.6
0
0
90
89.6
12.3
93
E
E


383
—
2.15
9.22
81.37
93.2
6.8
0
0
86
11.8
8.6
95
G
G


384
—
2.96
9.36
66.30
94.5
5.5
0
0
53
4.6
17.5
92
G
G


385
—
2.85
9.45
42.13
93.6
6.4
0
0
48
2.5
12.6
95
G
G


386
—
2.94
9.61
7.56
94.1
5.9
0
0
46
18.9
10.4
91
G
G


387
—
2.11
9.85
66.89
93.5
6.5
0.54
0.55
47
75.9
10.9
90
E
E


388
—
2.68
9.23
80.12
97.6
2.4
0
0.66
49
55.9
19
99
E
E


389
—
1.99
9.08
39.51
94.5
5.5
0
0.07
83
53.8
25.6
98
E
E


390
—
1.76
9.87
45.68
91.75
7.5
0.6
0.15
85
97.5
28.6
97
E
E


391
—
2.66
9.46
65.58
90.4
9.5
0.05
0.05
90
88.4
24.7
94
E
E


392
—
2.85
9.28
70.44
90.4
8.6
0.02
0.98
89
54.8
22.9
93
E
E


393
—
2.64
9.45
83.67
91.1
7.9
1
0
88
45.7
52.3
83
G
G
























TABLE 80









Granularity
Percent of









distribution
fine-grain


Ratio of fine




of Zn
metal


metal grains




metal grains/
grains

Total
in coat




Zn alloy
among Zn
Chemical component
metal
outermost


Inven-

grains (Ave
metal
content of Zn metal
grain
surface layer


tion
Average
grain diameter)
grains/
grains/Zn alloy
content
10% thickness
Coat


Exam-
grain
(μm)
Zn alloy
grains
of
to total fine
thickness
Time to red
















ple
diameter
Fine
Coarse
grains
(Mass %)
coat
metal grains
(μm)
rusting





















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
(Mass %)
(Mass %)
Inorganic
Organic
Organic
Inorganic
























394
—
2.35
9.25
80.93
81.1
13.7
5.2
0
47
34.7
56.3
88
G
G


395
—
2.12
9.46
47.02
89.2
9.8
1
0
47
57.9
33.3
89
E
E


396
—
2.26
10.54
7.66
89.45
10.5
0.05
0
52
65.4
34.5
87
E
E


397
—
1.76
9.55
15.20
82.93
16.4
0.07
0.6
52
87.9
23.5
86
E
E


398
—
2.23
9.06
73.50
95.3
3.9
0
0.8
52
2.9
26.7
85
G
G


399
—
2.12
9.3
49.33
95
2.5
0
2.5
88
12.6
195
243
G
G


400
—
2.21
8.68
19.47
93.46
6
0
0.54
49
53.8
23
74
E
E


401
—
1.38
8.53
69.55
94.1
5
0
0.9
35
17.8
23
63
G
G


402
—
1.95
9.32
87.32
96.7
2.8
0
0.5
37
34.7
31.2
83
G
G


403
—
1.26
8.95
75.88
98.5
0.5
0.3
0.7
36
76.8
37.5
82
E
E


404
—
1.03
10.99
7.77
94.52
5.4
0.02
0.06
80
58.9
12.5
81
E
E


405
—
1.65
8.7
43.55
95.65
3.5
0.05
0.8
48
50.8
10.2
89
E
E


406
—
2.35
8.55
7.68
89
3.3
5.2
2.5
46
46.8
14.5
96
G
G


407
—
1.62
9.99
8.64
94.98
3.5
0.02
1.5
52
23.7
16.3
95
G
G


408
—
1.88
9.91
16.58
89.5
5
4.6
0.9
51
53.8
15.8
99
E
E


409
—
2.35
9.25
35.87
91.45
8.5
0.05
0
47
53.8
19
89
E
E


410
—
2.57
9.56
42.04
97.58
2.4
0.02
0
48
43.7
25.6
89
G
G


411
—
2.56
9.84
38.41
94.58
0.56
0.02
0.06
49
55.9
28.6
98
E
E


412
—
2.21
9.75
6.99
95.65
1.55
0.05
0.8
51
65.8
24.7
96
E
E
























TABLE 81









Percent









Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of




Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,




grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,




alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,



Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,
Number
















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3
of



















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?
faces





1561
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes
2


1562
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes
2


1563
2.56
9.84
6.55
81.45
18.5
0
0.5
Yes
1.22
Yes
Yes
2


1564
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes
2


1565
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes
6


1566
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes
6


1567
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes
7


1568
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes
6


1569
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes
2


1570
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes
7


1571
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes
2


1572
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes
6


1573
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes
6


1574
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes
2


1575
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes
2


1576
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes
7


1577
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes
6


1578
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes
7


1579
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes
2


1580
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes
7













Coating details

















Ratio of









fine metal




grains in




coat




outermost




surface




layer 10%
Total




thickness
metal




to total
grain



Invention
fine metal
content

Coat



Example
grains
of coat

thickness
Coating



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1561
55.7
49
Alkyl silicate
14
Spray
E



1562
64.5
89
Urethane resin
55
Spray
E



1563
68.9
90
Alkyl silicate
8
Spray
E



1564
64.7
86
Urethane resin
122
Brush
E



1565
77.9
48
Alkyl silicate
555
Spray
E



1566
43.7
47
Alkali silicate
19
Spray
E



1567
7.8
47
Alkyl silicate
25
Brush
E



1568
16.0
47
Alkyl silicate
58
Spray
E



1569
89.6
52
Alkyl silicate
685
Spray
E



1570
11.8
52
Alkali silicate
19
Brush
E



1571
4.6
52
Urethane resin
700
Spray
E



1572
2.5
88
Alkyl silicate
77
Spray
E



1573
18.9
87
Alkyl silicate
54
Spray
E



1574
75.9
89
Alkyl silicate
64
Spray
E



1575
55.9
90
Alkyl silicate
34
Brush
E



1576
53.8
91
Alkali silicate
28
Spray
E



1577
97.5
46
Urethane resin
109
Brush
E



1578
88.4
47
Alkyl silicate
15
Spray
E



1579
54.8
47
Alkyl silicate
14
Spray
E



1580
45.7
49
Alkyl silicate
18
Spray
E

























TABLE 82









Percent









Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of




Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,




grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,




alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,



Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,
Number
















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3
of



















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?
faces





1581
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes
6


1582
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes
7


1583
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes
6


1584
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes
7


1585
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes
6


1586
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes
2


1587
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes
7


1588
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes
6


1589
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes
6


1590
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes
6


1591
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes
2


1592
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes
6


1593
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes
7


1594
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes
2


1595
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes
6


1596
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes
2


1597
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes
6


1598
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes
7


1599
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes
7


1600
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes
2













Coating details

















Ratio of









fine metal




grains in




coat




outermost




surface




layer 10%
Total




thickness
metal




to total
grain



Invention
fine metal
content

Coat



Example
grains
of coat

thickness
Coating



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1581
34.7
50
Alkali silicate
2
Spray
G



1582
57.9
87
Alkyl silicate
37
Spray
E



1583
65.4
83
Alkali silicate
12
Spray
E



1584
87.9
48
Alkyl silicate
160
Brush
E



1585
2.9
51
Alkali silicate
5
Brush
G



1586
12.6
51
Alkyl silicate
56
Brush
E



1587
53.8
87
Alkali silicate
2
Spray
G



1588
17.8
85
Alkyl silicate
18
Spray
E



1589
34.7
86
Alkyl silicate
23
Spray
E



1590
76.8
50
Epoxy resin
30
Brush
E



1591
58.9
51
Acrylic resin
77
Brush
E



1592
50.8
51
Urethane resin
655
Brush
E



1593
46.8
80
Polyester resin
47
Spray
E



1594
23.7
46
Epoxy resin
43
Spray
E



1595
53.8
51
Acrylic resin
52
Brush
E



1596
53.8
86
Urethane resin
20
Brush
E



1597
43.7
85
Polyester resin
200
Brush
E



1598
55.9
82
Alkali silicate
22
Spray
E



1599
65.8
81
Alkyl silicate
25
Spray
E



1600
55.7
46
Alkali silicate
14
Spray
E
























TABLE 83









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1601
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


1602
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


1603
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


1604
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


1605
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


1606
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


1607
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


1608
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


1609
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


1610
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


1611
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


1612
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


1613
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


1614
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


1615
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


1616
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


1617
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


1618
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


1619
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


1620
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1601
2
64.5
47
Urethane resin
112
Spray
E



1602
6
68.9
48
Alkali silicate
24
Spray
E



1603
7
64.7
51
Urethane resin
150
Spray
E



1604
6
77.9
53
Alkali silicate
18
Spray
E



1605
7
43.7
88
Alkyl silicate
19
Brush
E



1606
6
7.8
85
Alkyl silicate
24
Spray
E



1607
2
16.0
83
Urethane resin
99
Spray
E



1608
2
89.6
82
Alkyl silicate
7
Spray
E



1609
6
11.8
83
Epoxy resin
100
Spray
E



1610
7
4.6
47
Alkyl silicate
27
Brush
E



1611
6
2.5
51
Alkali silicate
15
Spray
E



1612
6
18.9
52
Alkyl silicate
14
Spray
E



1613
2
75.9
51
Urethane resin
55
Spray
E



1614
7
55.9
52
Alkyl silicate
8
Spray
E



1615
2
53.8
89
Urethane resin
122
Brush
E



1616
2
97.5
85
Alkyl silicate
54
Spray
E



1617
6
88.4
82
Alkali silicate
19
Spray
E



1618
7
54.8
87
Alkyl silicate
25
Brush
E



1619
7
45.7
88
Alkyl silicate
58
Spray
E



1620
6
34.7
49
Alkyl silicate
21
Spray
E
























TABLE 84









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1621
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


1622
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


1623
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


1624
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


1625
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


1626
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


1627
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


1628
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


1629
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


1630
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


1631
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


1632
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


1633
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


1634
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


1635
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


1636
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


1637
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


1638
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


1639
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


1640
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes













Coating details

















Ratio of









fine metal




grains in




coat




outermost




surface




layer 10%
Total




thickness
metal




to total
grain



Number
fine metal
content

Coat


Invention
of
grains
of coat

thickness
Coating


Example No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1621
7
57.9
50
Alkali silicate
19
Brush
E


1622
7
65.4
51
Urethane resin
56
Spray
E


1623
6
87.9
52
Alkyl silicate
77
Spray
E


1624
7
2.9
53
Alkyl silicate
12
Spray
E


1625
2
12.6
88
Alkyl silicate
64
Spray
E


1626
7
53.8
85
Alkyl silicate
34
Brush
E


1627
7
17.8
83
Alkali silicate
28
Spray
E


1628
2
34.7
81
Urethane resin
109
Brush
E


1629
6
55.7
80
Alkyl silicate
15
Spray
E


1630
6
64.5
47
Alkyl silicate
14
Spray
E


1631
7
68.9
49
Alkyl silicate
18
Spray
E


1632
7
64.7
50
Urethane resin
122
Brush
E


1633
6
77.9
51
Alkyl silicate
54
Spray
E


1634
7
43.7
52
Alkali silicate
19
Spray
E


1635
2
7.8
83
Alkyl silicate
25
Brush
E


1636
2
16.0
88
Alkyl silicate
58
Spray
E


1637
6
89.6
85
Alkyl silicate
21
Spray
E


1638
7
11.8
83
Alkali silicate
19
Brush
E


1639
6
4.6
82
Urethane resin
56
Spray
E


1640
2
2.5
47
Alkyl silicate
77
Spray
E























TABLE 85









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1641
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


1642
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


1643
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


1644
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


1645
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


1646
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


1647
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


1648
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


1649
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


1650
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


1651
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


1652
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


1653
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


1654
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


1655
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


1656
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


1657
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


1658
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


1659
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


1660
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1641
2
18.9
46
Alkyl silicate
54
Spray
E



1642
7
75.9
49
Alkali silicate
2
Spray
G



1643
6
55.9
50
Alkali silicate
20
Spray
E



1644
7
53.8
51
Alkali silicate
5
Spray
G



1645
7
97.5
83
Alkyl silicate
20
Spray
E



1646
6
88.4
82
Alkali silicate
15
Brush
E



1647
2
54.8
88
Alkyl silicate
57
Brush
E



1648
7
45.7
85
Alkali silicate
13
Brush
E



1649
2
34.7
86
Alkyl silicate
22
Brush
E



1650
2
57.9
47
Alkali silicate
20
Spray
E



1651
7
65.4
48
Alkyl silicate
27
Spray
E



1652
2
87.9
50
Alkali silicate
15
Spray
E



1653
7
2.9
51
Alkyl silicate
35
Spray
E



1654
2
12.6
52
Alkali silicate
34
Brush
E



1655
6
53.8
88
Alkyl silicate
45
Brush
E



1656
6
17.8
89
Alkali silicate
52
Brush
E



1657
7
34.7
86
Alkyl silicate
23
Brush
E



1658
6
76.8
87
Alkali silicate
5
Spray
E



1659
2
58.9
86
Alkyl silicate
52
Brush
E



1660
2
50.8
46
Alkali silicate
150
Brush
E
























TABLE 86









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1661
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


1662
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


1663
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


1664
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


1665
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


1666
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


1667
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


1668
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


1669
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


1670
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


1671
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


1672
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


1673
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


1674
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


1675
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


1676
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


1677
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


1678
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


1679
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


1680
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1661
2
46.8
49
Alkyl silicate
60
Brush
E



1662
2
23.7
35
Alkali silicate
15
Spray
E



1663
2
53.8
37
Alkyl silicate
24
Spray
E



1664
2
53.8
36
Alkali silicate
34
Spray
E



1665
6
43.7
38
Alkyl silicate
20
Brush
E



1666
6
55.9
48
Alkali silicate
200
Brush
E



1667
7
65.8
46
Alkyl silicate
56
Brush
E



1668
6
55.7
51
Alkali silicate
34
Spray
E



1669
2
64.5
46
Alkyl silicate
2
Spray
G



1670
7
68.9
38
Alkali silicate
15
Spray
E



1671
2
64.7
48
Alkali silicate
10
Spray
E



1672
6
77.9
52
Alkyl silicate
125
Brush
E



1673
6
43.7
30
Alkali silicate
24
Brush
E



1674
2
7.8
76
Alkyl silicate
110
Brush
E



1675
2
16.0
72
Alkali silicate
24
Brush
E



1676
7
89.6
81
Alkyl silicate
2
Spray
G



1677
6
11.8
64
Alkali silicate
37
Spray
E



1678
7
4.6
69
Alkyl silicate
113
Brush
E



1679
2
2.5
83
Alkali silicate
2
Spray
G



1680
7
18.9
30
Alkyl silicate
75
Brush
E
























TABLE 87









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1681
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


1682
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


1683
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


1684
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


1685
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


1686
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


1687
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


1688
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


1689
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


1690
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


1691
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


1692
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


1693
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


1694
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


1695
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


1696
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


1697
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


1698
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


1699
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


1700
2.54
11.99
37.95
88.9
9.4
0.7
0
Yes
1.08
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1681
6
75.9
83
Alkali silicate
30
Brush
E



1682
7
55.9
75
Alkyl silicate
34
Brush
E



1683
6
53.8
76
Epoxy resin
124
Brush
E



1684
7
97.5
72
Acrylic resin
15
Spray
E



1685
6
88.4
71
Urethane resin
23
Spray
E



1686
2
54.8
82
Polyester resin
157
Brush
E



1687
7
45.7
81
Epoxy resin
26
Spray
E



1688
6
34.7
83
Acrylic resin
38
Spray
E



1689
6
57.9
50
Urethane resin
160
Brush
E



1690
6
65.4
72
Polyester resin
27
Brush
E



1691
2
87.9
47
Epoxy resin
180
Brush
E



1692
6
2.9
47
Acrylic resin
26
Spray
E



1693
7
12.6
52
Urethane resin
180
Brush
E



1694
2
53.8
52
Polyester resin
15
Spray
E



1695
6
17.8
50
Epoxy resin
2
Spray
G



1696
2
34.7
46
Acrylic resin
28
Spray
E



1697
6
55.7
47
Urethane resin
30
Spray
E



1698
7
64.5
83
Polyester resin
2
Spray
G



1699
7
68.9
52
Epoxy resin
157
Brush
E



1700
2
64.7
89
Acrylic resin
28
Brush
E
























TABLE 88









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1701
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


1702
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


1703
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


1704
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


1705
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


1706
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


1707
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


1708
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


1709
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


1710
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


1711
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


1712
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


1713
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


1714
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


1715
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


1716
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


1717
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


1718
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


1719
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


1720
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1701
2
77.9
85
Alkyl silicate
130
Brush
E



1702
6
43.7
53
Alkyl silicate
29
Brush
E



1703
7
7.8
88
Epoxy resin
30
Brush
E



1704
6
16.0
85
Acrylic resin
120
Brush
E



1705
7
89.6
52
Urethane resin
187
Brush
E



1706
6
11.8
83
Polyester resin
28
Spray
E



1707
2
4.6
88
Epoxy resin
5
Spray
E



1708
2
2.5
49
Acrylic resin
35
Spray
E



1709
6
18.9
50
Urethane resin
5
Spray
G



1710
7
75.9
51
Polyester resin
200
Brush
E



1711
6
55.9
83
Alkali silicate
25
Spray
E



1712
6
53.8
82
Alkali silicate
15
Spray
E



1713
2
97.5
88
Alkyl silicate
20
Spray
E



1714
7
88.4
85
Alkali silicate
18
Spray
E



1715
2
54.8
87
Alkyl silicate
22
Spray
E



1716
2
45.7
86
Alkali silicate
19
Spray
E



1717
6
34.7
46
Alkyl silicate
29
Spray
E



1718
7
57.9
49
Alkali silicate
23
Spray
E



1719
7
65.4
35
Alkyl silicate
21
Spray
E



1720
6
87.9
30
Alkali silicate
19
Spray
E
























TABLE 89









Percent








Diameter
of fine-



distribution
grain



(peak
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1721
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes


1722
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes


1723
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes


1724
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes


1725
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes


1726
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes


1727
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes


1728
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes


1729
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes


1730
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes


1731
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


1732
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes


1733
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes


1734
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


1735
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes


1736
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes


1737
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes


1738
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes


1739
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes


1740
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes


1741
2.57
11.9
45.90
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1721
7
2.9
76
Alkyl silicate
15
Spray
E



1722
7
12.6
72
Alkali silicate
18
Spray
E



1723
6
53.8
30
Alkyl silicate
22
Spray
E



1724
7
17.8
83
Alkyl silicate
21
Spray
E



1725
2
34.7
75
Alkyl silicate
29
Spray
E



1726
7
76.8
76
Alkali silicate
23
Spray
E



1727
7
58.9
72
Alkyl silicate
21
Spray
E



1728
2
50.8
83
Alkali silicate
19
Spray
E



1729
6
46.8
50
Alkyl silicate
21
Spray
E



1730
6
23.7
72
Alkali silicate
19
Spray
E



1731
2
87.9
50
Acrylic resin
654
Spray
E



1732
6
2.9
48
Alkali silicate
700
Spray
E



1733
7
12.6
75
Alkyl silicate
555
Spray
E



1734
7
53.8
55
Alkyl silicate
321
Spray
E



1735
6
17.8
38
Alkyl silicate
152
Brush
E



1736
7
34.7
48
Urethane resin
674
Spray
E



1737
7
76.8
76
Polyester resin
325
Spray
E



1738
6
58.9
72
Alkyl silicate
665
Spray
E



1739
7
50.8
75
Alkyl silicate
354
Brush
E



1740
6
46.8
76
Alkyl silicate
165
Spray
E



1741
7
23.7
72
Urethane resin
354
Spray
E
























TABLE 90









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1742
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


1743
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


1744
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes
Yes


1745
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


1746
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


1747
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


1748
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


1749
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


1750
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


1751
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


1752
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


1753
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


1754
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


1755
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


1756
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


1757
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


1758
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


1759
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


1760
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


1761
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1742
2
55.7
49
Alkyl silicate
14
Spray
E



1743
2
64.5
89
Urethane resin
55
Spray
E



1744
2
68.9
90
Alkyl silicate
8
Spray
E



1745
2
64.7
86
Urethane resin
122
Brush
E



1746
6
77.9
48
Alkyl silicate
555
Spray
E



1747
6
43.7
47
Alkali silicate
19
Spray
E



1748
7
7.8
47
Alkyl silicate
25
Brush
E



1749
6
16.0
47
Alkyl silicate
58
Spray
E



1750
2
89.6
52
Alkyl silicate
685
Spray
E



1751
7
11.8
52
Alkali silicate
19
Brush
E



1752
2
4.6
52
Urethane resin
700
Spray
E



1753
6
2.5
88
Alkyl silicate
77
Spray
E



1754
6
18.9
87
Alkyl silicate
54
Spray
E



1755
2
75.9
89
Alkyl silicate
64
Spray
E



1756
2
55.9
90
Alkyl silicate
34
Brush
E



1757
7
53.8
91
Alkali silicate
28
Spray
E



1758
6
97.5
46
Urethane resin
109
Brush
E



1759
7
88.4
47
Alkyl silicate
15
Spray
E



1760
2
54.8
47
Alkyl silicate
14
Spray
E



1761
7
45.7
49
Alkyl silicate
18
Spray
E
























TABLE 91









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1762
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


1763
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


1764
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


1765
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


1766
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


1767
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


1768
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


1769
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


1770
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


1771
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


1772
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


1773
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


1774
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


1775
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


1776
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


1777
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


1778
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


1779
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


1780
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


1781
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1762
6
34.7
50
Alkali silicate
2
Spray
G



1763
7
57.9
87
Alkyl silicate
37
Spray
E



1764
6
65.4
83
Alkali silicate
12
Spray
E



1765
7
87.9
48
Alkyl silicate
160
Brush
E



1766
6
2.9
51
Alkali silicate
5
Brush
G



1767
2
12.6
51
Alkyl silicate
56
Brush
E



1768
7
53.8
87
Alkali silicate
2
Spray
G



1769
6
17.8
85
Alkyl silicate
18
Spray
E



1770
6
34.7
86
Alkyl silicate
23
Spray
E



1771
6
76.8
50
Epoxy resin
30
Brush
E



1772
2
58.9
51
Acrylic resin
77
Brush
E



1773
6
50.8
51
Urethane resin
655
Brush
E



1774
7
46.8
80
Polyester resin
47
Spray
E



1775
2
23.7
46
Epoxy resin
43
Spray
E



1776
6
53.8
51
Acrylic resin
52
Brush
E



1777
2
53.8
86
Urethane resin
20
Brush
E



1778
6
43.7
85
Polyester resin
200
Brush
E



1779
7
55.9
82
Alkali silicate
22
Spray
E



1780
7
65.8
81
Alkyl silicate
25
Spray
E



1781
2
55.7
46
Alkali silicate
14
Spray
E
























TABLE 92









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1782
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


1783
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


1784
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


1785
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


1786
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


1787
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


1788
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


1789
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


1790
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


1791
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


1792
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


1793
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


1794
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


1795
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


1796
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


1797
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


1798
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


1799
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


1800
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


1801
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1782
2
64.5
47
Urethane resin
112
Spray
E



1783
6
68.9
48
Alkali silicate
24
Spray
E



1784
7
64.7
51
Urethane resin
150
Spray
E



1785
6
77.9
53
Alkali silicate
18
Spray
E



1786
7
43.7
88
Alkyl silicate
19
Brush
E



1787
6
7.8
85
Alkyl silicate
24
Spray
E



1788
2
16.0
83
Urethane resin
99
Spray
E



1789
2
89.6
82
Alkyl silicate
7
Spray
E



1790
6
11.8
83
Epoxy resin
100
Spray
E



1791
7
4.6
47
Alkyl silicate
27
Brush
E



1792
6
2.5
51
Alkali silicate
15
Spray
E



1793
6
18.9
52
Alkyl silicate
14
Spray
E



1794
2
75.9
51
Urethane resin
55
Spray
E



1795
7
55.9
52
Alkyl silicate
8
Spray
E



1796
2
53.8
89
Urethane resin
122
Brush
E



1797
2
97.5
85
Alkyl silicate
54
Spray
E



1798
6
88.4
82
Alkali silicate
19
Spray
E



1799
7
54.8
87
Alkyl silicate
25
Brush
E



1800
7
45.7
88
Alkyl silicate
58
Spray
E



1801
6
34.7
49
Alkyl silicate
21
Spray
E
























TABLE 93









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1802
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


1803
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


1804
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


1805
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


1806
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


1807
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


1808
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


1809
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


1810
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


1811
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


1812
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


1813
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


1814
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


1815
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


1816
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


1817
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


1818
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


1819
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


1820
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


1821
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes













Coating details

















Ratio of









fine metal




grains in




coat




outermost




surface




layer 10%
Total




thickness
metal




to total
grain



Number
fine metal
content

Coat


Invention
of
grains
of coat

thickness
Coating


Example No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results





1802
7
57.9
50
Alkali silicate
19
Brush
E


1803
7
65.4
51
Urethane resin
56
Spray
E


1804
6
87.9
52
Alkyl silicate
77
Spray
E


1805
7
2.9
53
Alkyl silicate
12
Spray
E


1806
2
12.8
88
Alkyl silicate
64
Spray
E


1807
7
53.8
85
Alkyl silicate
34
Brush
E


1808
7
17.8
83
Alkali silicate
28
Spray
E


1809
2
34.7
81
Urethane resin
109
Brush
E


1810
6
55.7
80
Alkyl silicate
15
Spray
E


1811
6
64.5
47
Alkyl silicate
14
Spray
E


1812
7
68.9
49
Alkyl silicate
18
Spray
E


1813
7
64.7
50
Urethane resin
122
Brush
E


1814
6
77.9
51
Alkyl silicate
54
Spray
E


1815
7
43.7
52
Alkali silicate
19
Spray
E


1816
2
7.8
83
Alkyl silicate
25
Brush
E


1817
2
16.0
88
Alkyl silicate
58
Spray
E


1818
6
89.6
85
Alkyl silicate
21
Spray
E


1819
7
11.8
83
Alkali silicate
19
Brush
E


1820
6
4.6
82
Urethane resin
56
Spray
E


1821
2
2.5
47
Alkyl silicate
77
Spray
E























TABLE 94









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1822
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


1823
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


1824
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


1825
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


1826
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


1827
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


1828
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


1829
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


1830
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


1831
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


1832
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


1833
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


1834
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


1835
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


1836
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


1837
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


1838
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


1839
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


1840
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


1841
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1822
2
18.9
46
Alkyl silicate
54
Spray
E



1823
7
75.9
49
Alkali silicate
2
Spray
G



1824
6
55.9
50
Alkali silicate
20
Spray
E



1825
7
53.8
51
Alkali silicate
5
Spray
G



1826
7
97.5
83
Alkyl silicate
20
Spray
E



1827
6
88.4
82
Alkali silicate
15
Brush
E



1828
2
54.8
88
Alkyl silicate
57
Brush
E



1829
7
45.7
85
Alkali silicate
13
Brush
E



1830
2
34.7
86
Alkyl silicate
22
Brush
E



1831
2
57.9
47
Alkali silicate
20
Spray
E



1832
7
65.4
48
Alkyl silicate
27
Spray
E



1833
2
87.9
50
Alkali silicate
15
Spray
E



1834
7
2.9
51
Alkyl silicate
35
Spray
E



1835
2
12.6
52
Alkali silicate
34
Brush
E



1836
6
53.8
88
Alkyl silicate
45
Brush
E



1837
6
17.8
89
Alkali silicate
52
Brush
E



1838
7
34.7
86
Alkyl silicate
23
Brush
E



1839
6
76.8
87
Alkali silicate
5
Spray
E



1840
2
58.9
86
Alkyl silicate
52
Brush
E



1841
2
50.8
46
Alkali silicate
150
Brush
E
























TABLE 95









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1842
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


1843
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


1844
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


1845
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


1846
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


1847
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


1848
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


1849
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


1850
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


1851
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


1852
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


1853
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


1854
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


1855
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


1856
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


1857
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


1858
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


1859
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


1860
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


1861
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1842
2
46.8
49
Alkyl silicate
60
Brush
E



1843
2
23.7
35
Alkali silicate
15
Spray
E



1844
2
53.8
37
Alkyl silicate
24
Spray
E



1845
2
53.8
36
Alkali silicate
34
Spray
E



1846
6
43.7
38
Alkyl silicate
20
Brush
E



1847
6
55.9
48
Alkali silicate
200
Brush
E



1848
7
65.8
46
Alkyl silicate
56
Brush
E



1849
6
55.7
51
Alkali silicate
34
Spray
E



1850
2
64.5
46
Alkyl silicate
2
Spray
G



1851
7
68.9
38
Alkali silicate
15
Spray
E



1852
2
64.7
48
Alkali silicate
10
Spray
E



1853
6
77.9
52
Alkyl silicate
125
Brush
E



1854
6
43.7
30
Alkali silicate
24
Brush
E



1855
2
7.8
76
Alkyl silicate
110
Brush
E



1856
2
16.0
72
Alkali silicate
24
Brush
E



1857
7
89.6
81
Alkyl silicate
2
Spray
G



1858
6
11.8
64
Alkali silicate
37
Spray
E



1859
7
4.6
69
Alkyl silicate
113
Brush
E



1860
2
2.5
83
Alkali silicate
2
Spray
G



1861
7
18.9
30
Alkyl silicate
75
Brush
E
























TABLE 96









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1862
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


1863
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


1864
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


1865
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


1866
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


1867
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


1868
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


1869
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


1870
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


1871
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


1872
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


1873
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


1874
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


1875
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


1876
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


1877
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


1878
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


1879
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


1880
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


1881
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1862
6
75.9
83
Alkali silicate
30
Brush
E



1863
7
55.9
75
Alkyl silicate
34
Brush
E



1864
6
53.8
76
Epoxy resin
124
Brush
E



1865
7
97.5
72
Acrylic resin
15
Spray
E



1866
6
88.4
71
Urethane resin
23
Spray
E



1867
2
54.8
82
Polyester resin
157
Brush
E



1868
7
45.7
81
Epoxy resin
26
Spray
E



1869
6
34.7
83
Acrylic resin
38
Spray
E



1870
6
57.9
50
Urethane resin
160
Brush
E



1871
6
65.4
72
Polyester resin
27
Brush
E



1872
2
87.9
47
Epoxy resin
180
Brush
E



1873
6
2.9
47
Acrylic resin
26
Spray
E



1874
7
12.6
52
Urethane resin
180
Brush
E



1875
2
53.8
52
Polyester resin
15
Spray
E



1876
6
17.8
50
Epoxy resin
2
Spray
G



1877
2
34.7
46
Acrylic resin
28
Spray
E



1878
6
55.7
47
Urethane resin
30
Spray
E



1879
7
64.5
83
Polyester resin
2
Spray
G



1880
7
68.9
52
Epoxy resin
157
Brush
E



1881
2
64.7
89
Acrylic resin
28
Brush
E
























TABLE 97









Percent








Diameter
of fine-



distribution
grain



(Ave
metal



Mg solid



diameter) of
grains

Alloy

solution phase
Any of



Zn metal
among Zn
Chemical component
grain

and Zn—Mg
MgZn2,



grains/Zn
metal
content of Zn metal
fracture

intermetallic
Mg2Zn11,



alloy grains
grains/
grains/Zn alloy
surfaces

compounds
Mg2Zn3,


Invention
(μm)
Zn alloy
grains
or
Ave
present on
MgZn,















Example
Fine
Coarse
grains
(Mass %)
cracks
aspect
grain
Mg7Zn3


















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





1882
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


1883
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


1884
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


1885
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


1886
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


1887
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


1888
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


1889
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


1890
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


1891
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


1892
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


1893
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


1894
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


1895
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


1896
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


1897
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


1898
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


1899
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


1900
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


1901
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost





surface





layer 10%
Total





thickness
metal





to total
grain



Invention
Number
fine metal
content

Coat



Example
of
grains
of coat

thickness
Coating



No
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Corrosion Test Results







1882
2
77.9
85
Alkyl silicate
130
Brush
E



1883
6
43.7
53
Alkyl silicate
29
Brush
E



1884
7
7.8
88
Epoxy resin
30
Brush
E



1885
6
16.0
85
Acrylic resin
120
Brush
E



1886
7
89.6
52
Urethane resin
187
Brush
E



1887
6
11.8
83
Polyester resin
28
Spray
E



1888
2
4.6
88
Epoxy resin
5
Spray
E



1889
2
2.5
49
Acrylic resin
35
Spray
E



1890
6
18.9
50
Urethane resin
5
Spray
G



1891
7
75.9
51
Polyester resin
200
Brush
E



1892
6
55.9
83
Alkali silicate
25
Spray
E



1893
6
53.8
82
Alkali silicate
15
Spray
E



1894
2
97.5
88
Alkyl silicate
20
Spray
E



1895
7
88.4
85
Alkali silicate
18
Spray
E



1896
2
54.8
87
Alkyl silicate
22
Spray
E



1897
2
45.7
86
Alkali silicate
19
Spray
E



1898
6
34.7
46
Alkyl silicate
29
Spray
E



1899
7
57.9
49
Alkali silicate
23
Spray
E



1900
7
65.4
35
Alkyl silicate
21
Spray
E



1901
6
87.9
30
Alkali silicate
19
Spray
E























TABLE 98









Percent








of fine-



Diameter
grain



distribution
metal



Mg solid



(Ave
grains

Alloy

solution phase



diameter) of
among Zn
Chemical component
grain

and Zn—Mg



Zn metal
metal
content of Zn metal
fracture

intermetallic



alloy grains
grains/
grains/Zn alloy
surfaces

compounds


Invention
(μm)
Zn alloy
grains
or

present on














Example
Fine
Coarse
grains
(Mass %)
cracks

grain

















No
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
Ave aspect ratio
surfaces?





1902
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes


1903
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes


1904
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes


1905
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes


1906
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes


1907
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes


1908
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes


1909
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes


1910
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes


1911
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes


1912
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes


1913
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes


1914
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes


1915
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes


1916
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes


1917
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes


1918
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes


1919
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes


1920
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes


1921
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes


1922
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes













Coating details



















Ratio of










fine metal





grains in





coat





outermost



Any of

surface



MgZn2,

layer 10%
Total



Mg2Zn11,

thickness
metal



Mg2Zn3,

to total
grain


Invention
MgZn,
Number
fine metal
content

Coat


Example
Mg7Zn3,
of
grains
of coat

thickness
Coating
Corrosion


No
present?
faces
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results





1902
Yes
7
2.9
76
Alkyl silicate
15
Spray
E


1903
Yes
7
12.6
72
Alkali silicate
18
Spray
E


1904
Yes
6
53.8
30
Alkyl silicate
22
Spray
E


1905
Yes
7
17.8
83
Alkyl silicate
21
Spray
E


1906
Yes
2
34.7
75
Alkyl silicate
29
Spray
E


1907
Yes
7
76.8
76
Alkali silicate
23
Spray
E


1908
Yes
7
58.9
72
Alkyl silicate
21
Spray
E


1909
Yes
2
50.8
83
Alkali silicate
19
spray
E


1910
Yes
6
46.8
50
Alkyl silicate
21
Spray
E


1911
Yes
6
23.7
72
Alkali silicate
19
Spray
E


1912
Yes
2
87.9
50
Acrylic resin
654
Spray
E


1913
Yes
6
2.9
48
Alkali silicate
700
Spray
E


1914
Yes
7
12.6
75
Alkyl silicate
555
Spray
E


1915
Yes
7
53.8
55
Alkyl silicate
321
Spray
E


1916
Yes
6
17.8
38
Alkyl silicate
152
Brush
E


1917
Yes
7
34.7
48
Urethane resin
674
Spray
E


1918
Yes
7
76.8
76
Polyester resin
325
Spray
E


1919
Yes
6
58.9
72
Alkyl silicate
665
Spray
E


1920
Yes
7
50.8
75
Alkyl silicate
354
Brush
E


1921
Yes
6
46.8
76
Alkyl silicate
165
Spray
E


1922
Yes
7
23.7
72
Urethane resin
354
Spray
E






















TABLE 99










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks


















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
Ave aspect ratio





1923
23.5
2.65
9.56
5.66
100
0
0
0
No
—


1924
5.96
0.05
6.5
16.55
100
0
0
0
No
—


1925
10.64
4.6
65.5
21.55
100
0
0
0
No
—


1926
16.5
3.56
13.5
5.66
100
0
0
0
No
—


1927
7.95
4.55
16.7
33.66
100
0
0
0
No
—


1928
7.95
2.15
9.89
45.65
100
0
0
0
No
—


1929
9.64
3.22
10.55
49.88
100
0
0
0
No
—


1930
0.96
2.99
9.64
42.33
100
0
0
0
No
—


1931
5.26
3.65
11.22
65.44
100
0
0
0
No
—


1932
13.5
4.55
13.5
77.55
100
0
0
0
No
—


1933
13.5
3.57
22.5
96.55
100
0
0
0
No
—


1934
9.64
1.99
8.56
5.97
100
0
0
0
No
—


1935
16.5
2.12
9.46
87.77
100
0
0
0
No
—


1936
20.59
2.45
11.1
86.55
100
0
0
0
No
—


1937
0.96
1.85
8.92
15.67
100
0
0
0
No
—


1938
6.54
1.65
9.23
31.55
100
0
0
0
No
—


1939
5.26
2.45
9.05
26.76
100
0
0
0
No
—


1940
10.64
2.01
10.91
67.89
100
0
0
0
No
—


1941
9.64
1.99
11.12
56.89
100
0
0
0
No
—


1942
6.9
2.38
10.93
45.67
100
0
0
0
No
—


1943
10.5
2.49
9.34
34.67
100
0
0
0
No
—















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





1923
1
299.5
—
35
Alkali silicate
2
Spray
G


1924
1
12.5
—
66
Alkyl silicate
37
Spray
E


1925
1
3.5
—
38
Alkali silicate
12
Spray
E


1926
1
1.4
—
84
Alkyl silicate
160
Brush
E


1927
1
6.8
—
39
Alkali silicate
5
Brush
G


1928
1
136.5
—
85
Alkyl silicate
12
Brush
E


1929
1
14.5
—
36
Alkali silicate
2
Spray
G


1930
1
0.08
—
56
Alkyl silicate
18
Spray
E


1931
1
1.6
—
42
Alkyl silicate
23
Spray
E


1932
1
3.9
—
31
Epoxy resin
30
Brush
E


1933
1
10.5
—
88
Acrylic resin
77
Brush
E


1934
1
4.9
—
78
Urethane resin
254
Brush
E


1935
1
33.5
—
36
Polyester resin
47
Spray
E


1936
1
2.5
—
37
Epoxy resin
43
Spray
E


1937
1
1.9
—
45
Acrylic resin
322
Brush
E


1938
1
7.1
—
68
Urethane resin
20
Brush
E


1939
1
9.4
—
79
Polyester resin
700
Brush
E


1940
1
16.8
—
47
Alkali silicate
22
Spray
E


1941
1
75.5
—
56
Alkyl silicate
25
Spray
E


1942
1
4.5
—
37
Alkali silicate
14
Spray
E


1943
1
0.9
—
90
Urethane resin
112
Spray
E






















TABLE 100










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn

Alloy



of later-
grains/Zn
metal
Chemical component
grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks


















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
Ave aspect ratio





1944
13.5
2.34
8.77
95.66
100
0
0
0
No
—


1945
20.59
3.99
27.6
34.21
100
0
0
0
No
—


1946
7.82
1.02
21.9
7.88
100
0
0
0
No
—


1947
5.26
0.05
22.5
92.32
100
0
0
0
No
—


1948
7.06
2.01
17.5
11.22
100
0
0
0
No
—


1949
0.64
1.51
6.99
55.66
100
0
0
0
No
—


1950
46.8
2.38
7.65
78.99
100
0
0
0
No
—


1951
9.64
1.99
8.56
5.97
100
0
0
0
No
—


1952
16.5
2.49
9.34
34.67
100
0
0
0
No
—


1953
20.59
1.02
21.9
7.88
100
0
0
0
No
—


1954
16.5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12


1955
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38


1956
0.96
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22


1957
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14


1958
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02


1959
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05


1960
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36


1961
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11


1962
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07


1963
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42


1964
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





1944
1
3.2
—
43
Alkali silicate
554
Spray
E


1945
1
5.2
—
38
Urethane resin
150
Spray
E


1946
1
1.6
—
56
Alkali silicate
18
Spray
E


1947
1
85.5
—
89
Alkyl silicate
657
Brush
E


1948
1
52.2
—
32
Alkyl silicate
24
Spray
E


1949
1
3.6
—
55
Urethane resin
99
Spray
E


1950
1
1.7
—
79
Alkyl silicate
7
Spray
E


1951
1
4.9
—
78
Epoxy resin
100
Spray
E


1952
1
33.5
—
77
Alkyl silicate
27
Brush
E


1953
1
2.5
—
56
Alkali silicate
15
Spray
E


1954
1
5
1.867
49
Alkyl silicate
14
Spray
E


1955
1
198.7
0.047
89
Urethane resin
55
Spray
E


1956
1
36
0.500
90
Alkyl silicate
8
Spray
E


1957
1
1.5
0.012
86
Urethane resin
122
Brush
E


1958
1
0.008
1.587
48
Alkyl silicate
555
Spray
E


1959
1
1.4
2.833
47
Alkali silicate
19
Spray
E


1960
1
4.2
2.673
47
Alkyl silicate
25
Brush
E


1961
1
1.6
0.731
47
Alkyl silicate
58
Spray
E


1962
1
7.5
0.671
52
Alkyl silicate
685
Spray
E


1963
1
1.6
3.538
52
Alkali silicate
19
Brush
E


1964
1
2
5.133
52
Urethane resin
700
Spray
E






















TABLE 101










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





1965
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22


1966
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14


1967
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13


1968
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02


1969
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06


1970
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05


1971
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24


1972
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33


1973
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27


1974
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05


1975
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22


1976
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13


1977
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06


1978
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05


1979
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24


1980
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05


1981
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12


1982
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38


1983
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13


1984
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33


1985
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





1965
1
270
0.069
88
Alkyl silicate
77
Spray
E


1966
1
7.5
0.424
87
Alkyl silicate
54
Spray
E


1967
1
2.9
1.385
89
Alkyl silicate
64
Spray
E


1968
1
2.6
2.111
90
Alkyl silicate
34
Brush
E


1969
1
0.1
22.273
91
Alkali silicate
28
Spray
E


1970
1
1.2
8.000
46
Urethane resin
109
Brush
E


1971
1
1.2
0.636
47
Alkyl silicate
15
Spray
E


1972
1
62
0.341
47
Alkyl silicate
14
Spray
E


1973
1
2.4
3.059
49
Alkyl silicate
18
Spray
E


1974
1
2.1
4.129
50
Alkali silicate
2
Spray
G


1975
1
34.5
0.220
87
Alkyl silicate
37
Spray
E


1976
1
270
0.109
83
Alkali silicate
12
Spray
E


1977
1
32.5
0.254
48
Alkyl silicate
160
Brush
E


1978
1
3
6.375
51
Alkali silicate
5
Brush
G


1979
1
1.5
0.028
51
Alkyl silicate
56
Brush
E


1980
1
7.5
1.271
87
Alkali silicate
2
Spray
G


1981
1
13.5
0.772
85
Alkyl silicate
18
Spray
E


1982
1
5
4.083
86
Alkyl silicate
23
Spray
E


1983
1
5
2.900
50
Epoxy resin
30
Brush
E


1984
1
1
0.650
51
Acrylic resin
77
Brush
E


1985
1
120
0.161
51
Urethane resin
655
Brush
E






















TABLE 102










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





1986
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23


1987
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11


1988
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42


1989
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06


1990
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05


1991
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07


1992
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42


1993
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38


1994
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22


1995
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14


1996
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13


1997
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02


1998
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06


1999
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05


2000
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24


2001
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33


2002
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27


2003
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05


2004
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12


2005
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23


2006
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





1986
1
3.7
2.298
80
Polyester resin
47
Spray
E


1987
1
6.1
1.676
46
Epoxy resin
43
Spray
E


1988
1
198.5
0.048
51
Acrylic resin
52
Brush
E


1989
1
2.5
3.000
86
Urethane resin
20
Brush
E


1990
1
18.5
0.774
85
Polyester resin
200
Brush
E


1991
1
8
1.867
82
Alkali silicate
22
Spray
E


1992
1
1.6
4.077
81
Alkyl silicate
25
Spray
E


1993
1
1.2
6.045
46
Alkali silicate
14
Spray
E


1994
1
0.5
0.933
47
Urethane resin
112
Spray
E


1995
1
9
2.350
48
Alkali silicate
24
Spray
E


1996
1
4.5
1.618
51
Urethane resin
150
Spray
E


1997
1
136
0.109
53
Alkali silicate
18
Spray
E


1998
1
13
1.314
88
Alkyl silicate
19
Brush
E


1999
1
10.6
0.181
85
Alkyl silicate
24
Spray
E


2000
1
1.6
2.000
83
Urethane resin
99
Spray
E


2001
1
68
0.223
82
Alkyl silicate
7
Spray
E


2002
1
4.5
1.945
83
Epoxy resin
100
Spray
E


2003
1
10.5
1.452
47
Alkyl silicate
27
Brush
E


2004
1
4.9
3.322
51
Alkali silicate
15
Spray
E


2005
1
10.5
1.261
52
Alkyl silicate
14
Spray
E


2006
1
192
0.074
51
Urethane resin
55
Spray
E






















TABLE 103










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2007
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11


2008
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07


2009
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42


2010
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38


2011
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22


2012
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14


2013
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13


2014
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02


2015
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06


2016
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05


2017
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24


2018
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33


2019
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27


2020
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05


2021
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12


2022
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23


2023
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36


2024
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11


2025
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07


2026
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42


2027
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2007
1
0.07
11.869
52
Alkyl silicate
8
Spray
E


2008
1
9.5
1.000
89
Urethane resin
122
Brush
E


2009
1
2.6
3.278
85
Alkyl silicate
54
Spray
E


2010
1
4.5
2.327
82
Alkali silicate
19
Spray
E


2011
1
3
1.550
87
Alkyl silicate
25
Brush
E


2012
1
7.5
1.908
88
Alkyl silicate
58
Spray
E


2013
1
77
0.251
49
Alkyl silicate
21
Spray
E


2014
1
10.5
1.078
50
Alkali silicate
19
Brush
E


2015
1
15.5
0.648
51
Urethane resin
56
Spray
E


2016
1
5.8
1.250
52
Alkyl silicate
77
Spray
E


2017
1
1.9
1.759
53
Alkyl silicate
12
Spray
E


2018
1
16.9
1.369
88
Alkyl silicate
64
Spray
E


2019
1
1.5
5.400
85
Alkyl silicate
34
Brush
E


2020
1
0.05
19.048
83
Alkali silicate
28
Spray
E


2021
1
215
0.072
81
Urethane resin
109
Brush
E


2022
1
4.2
2.019
80
Alkyl silicate
15
Spray
E


2023
1
1.5
3.160
47
Alkyl silicate
14
Spray
E


2024
1
4.8
0.828
49
Alkyl silicate
18
Spray
E


2025
1
0.5
12.267
50
Urethane resin
122
Brush
E


2026
1
2.3
3.848
51
Alkyl silicate
54
Spray
E


2027
1
0.05
9.810
52
Alkali silicate
19
Spray
E






















TABLE 104










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn

Alloy



of later-
grains/Zn
metal
Chemical component
grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2028
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22


2029
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14


2030
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13


2031
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02


2032
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06


2033
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05


2034
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24


2035
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33


2036
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27


2037
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37


2038
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10


2039
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04


2040
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02


2041
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01


2042
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08


2043
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14


2044
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23


2045
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33


2046
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37


2047
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44


2048
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2028
1
120
0.172
83
Alkyl silicate
25
Brush
E


2029
1
3.7
0.532
88
Alkyl silicate
58
Spray
E


2030
1
16.5
0.869
85
Alkyl silicate
21
Spray
E


2031
1
24
0.768
83
Alkali silicate
19
Brush
E


2032
1
0.01
13.366
82
Urethane resin
56
Spray
E


2033
1
7.8
1.352
47
Alkyl silicate
77
Spray
E


2034
1
1.6
4.077
46
Alkyl silicate
54
Spray
E


2035
1
3.2
3.667
49
Alkali silicate
2
Spray
G


2036
1
5.4
0.406
50
Alkali silicate
20
Spray
E


2037
1
220
0.076
51
Alkali silicate
5
Spray
G


2038
1
2.2
2.531
83
Alkyl silicate
20
Spray
E


2039
1
2.8
3.605
82
Alkali silicate
15
Brush
E


2040
1
12
1.423
88
Alkyl silicate
57
Brush
E


2041
1
10.6
0.207
85
Alkali silicate
13
Brush
E


2042
1
35
0.303
86
Alkyl silicate
22
Brush
E


2043
1
125.5
0.057
47
Alkali silicate
20
Spray
E


2044
1
6
2.500
48
Alkyl silicate
27
Spray
E


2045
1
34
0.417
50
Alkali silicate
15
Spray
E


2046
1
1.6
3.615
51
Alkyl silicate
35
Spray
E


2047
1
7.5
0.835
52
Alkali silicate
34
Brush
E


2048
1
200
0.112
88
Alkyl silicate
45
Brush
E






















TABLE 105










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2049
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22


2050
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23


2051
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47


2052
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01


2053
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04


2054
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05


2055
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12


2056
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11


2057
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08


2058
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47


2059
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50


2060
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13


2061
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26


2062
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14


2063
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49


2064
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34


2065
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18


2066
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17


2067
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48


2068
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49


2069
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2049
1
7.5
1.612
89
Alkali silicate
52
Brush
E


2050
1
3.2
3.071
86
Alkyl silicate
23
Brush
E


2051
1
2.6
1.194
87
Alkali silicate
5
Spray
E


2052
1
3
4.400
86
Alkyl silicate
52
Brush
E


2053
1
15.2
0.037
46
Alkali silicate
150
Brush
E


2054
1
0.09
9.450
49
Alkyl silicate
60
Brush
E


2055
1
13.5
0.483
35
Alkali silicate
15
Spray
E


2056
1
135.4
0.172
37
Alkyl silicate
24
Spray
E


2057
1
3
4.375
36
Alkali silicate
34
Spray
E


2058
1
7.8
1.409
38
Alkyl silicate
20
Brush
E


2059
1
10.2
1.330
48
Alkali silicate
200
Brush
E


2060
1
7
2.588
46
Alkyl silicate
56
Brush
E


2061
1
225.2
0.038
51
Alkali silicate
34
Spray
E


2062
1
5.4
2.219
46
Alkyl silicate
2
Spray
G


2063
1
3.2
0.019
38
Alkali silicate
15
Spray
E


2064
1
13.5
1.048
48
Alkali silicate
10
Spray
E


2065
1
1.6
6.692
52
Alkyl silicate
125
Brush
E


2066
1
1.5
0.320
30
Alkali silicate
24
Brush
E


2067
1
2.5
1.829
76
Alkyl silicate
110
Brush
E


2068
1
2.6
0.889
72
Alkali silicate
24
Brush
E


2069
1
126
0.072
81
Alkyl silicate
2
Spray
G






















TABLE 106










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2070
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17


2071
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16


2072
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27


2073
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27


2074
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49


2075
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29


2076
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23


2077
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23


2078
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23


2079
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23


2080
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27


2081
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23


2082
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36


2083
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11


2084
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02


2085
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05


2086
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24


2087
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33


2088
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27


2089
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50


2090
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2070
1
120
0.159
64
Alkali silicate
37
Spray
E


2071
1
7.5
1.776
69
Alkyl silicate
113
Brush
E


2072
1
6.5
1.933
83
Alkali silicate
2
Spray
G


2073
1
20
0.500
30
Alkyl silicate
75
Brush
E


2074
1
0.007
7.448
83
Alkali silicate
30
Brush
E


2075
1
9
0.610
75
Alkyl silicate
34
Brush
E


2076
1
7.5
1.976
76
Epoxy resin
124
Brush
E


2077
1
50
0.539
72
Acrylic resin
15
Spray
E


2078
1
0.005
2.886
71
Urethane resin
23
Spray
E


2079
1
25.6
0.169
82
Polyester resin
157
Brush
E


2080
1
56.5
0.001
81
Epoxy resin
26
Spray
E


2081
1
1.6
1.192
83
Acrylic resin
38
Spray
E


2082
1
3
5.125
50
Urethane resin
160
Brush
E


2083
1
100
0.292
72
Polyester resin
27
Brush
E


2084
1
65.5
0.114
47
Epoxy resin
180
Brush
E


2085
1
1.9
0.241
47
Acrylic resin
26
Spray
E


2086
1
2.1
1.484
52
Urethane resin
180
Brush
E


2087
1
10.5
0.722
52
Polyester resin
15
Spray
E


2088
1
6.5
1.573
50
Epoxy resin
2
Spray
G


2089
1
19.5
0.629
46
Acrylic resin
28
Spray
E


2090
1
0.8
0.333
47
Urethane resin
30
Spray
E






















TABLE 107










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2091
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04


2092
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02


2093
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08


2094
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15


2095
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34


2096
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25


2097
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19


2098
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18


2099
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24


2100
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11


2101
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27


2102
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31


2103
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26


2104
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14


2105
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34


2106
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16


2107
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47


2108
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48


2109
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49


2110
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34


2111
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29


2112
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2091
1
18.5
0.487
83
Polyester resin
2
Spray
G


2092
1
4.3
2.208
52
Epoxy resin
157
Brush
E


2093
1
3.2
2.238
89
Acrylic resin
28
Brush
E


2094
1
1.5
4.680
85
Alkyl silicate
130
Brush
E


2095
1
4.5
0.764
53
Alkyl silicate
29
Brush
E


2096
1
15.5
0.170
88
Epoxy resin
30
Brush
E


2097
1
10.5
1.209
85
Acrylic resin
120
Brush
E


2098
1
2.5
4.171
52
Urethane resin
187
Brush
E


2099
1
9
2.640
83
Polyester resin
28
Spray
E


2100
1
105
0.156
88
Epoxy resin
5
Spray
E


2101
1
5.7
2.910
49
Acrylic resin
35
Spray
E


2102
1
3.9
0.327
50
Urethane resin
5
Spray
G


2103
1
4.5
1.091
51
Polyester resin
200
Brush
E


2104
1
3.6
1.826
83
Alkali silicate
25
Spray
E


2105
1
16.4
0.764
82
Alkali silicate
15
Spray
E


2106
1
6
2.657
88
Alkyl silicate
20
Spray
E


2107
1
7.5
0.212
85
Alkali silicate
18
Spray
E


2108
1
10.5
0.357
87
Alkyl silicate
22
Spray
E


2109
1
2.6
4.639
86
Alkali silicate
19
Spray
E


2110
1
1.5
0.160
46
Alkyl silicate
29
Spray
E


2111
1
13.5
0.731
49
Alkali silicate
23
Spray
E


2112
1
2.6
1.917
35
Alkyl silicate
21
Spray
E






















TABLE 108










Percent







Diameter
of fine-




distribution
grain




(peak
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2113
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48


2114
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27


2115
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17


2116
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27


2117
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27


2118
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48


2119
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49


2120
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34


2121
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23


2122
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23


2123
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23


2124
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05


2125
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06


2126
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38


2127
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06


2128
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49


2129
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34


2130
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48


2131
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49


2132
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29


2133
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23


2134
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2113
1
6.5
0.007
30
Alkali silicate
19
Spray
E


2114
1
1.6
2.462
76
Alkyl silicate
15
Spray
E


2115
1
3.8
0.729
72
Alkali silicate
18
Spray
E


2116
1
0.08
16.204
30
Alkyl silicate
22
Spray
E


2117
1
164.5
0.022
83
Alkyl silicate
21
Spray
E


2118
1
3.6
1.283
75
Alkyl silicate
29
Spray
E


2119
1
8.6
1.688
76
Alkali silicate
23
Spray
E


2120
1
12
1.731
72
Alkyl silicate
21
Spray
E


2121
1
5.8
0.500
83
Alkali silicate
19
Spray
E


2122
1
10
2.409
50
Alkyl silicate
21
Spray
E


2123
1
1
12.750
72
Alkali silicate
19
Spray
E


2124
1
10.5
1.113
50
Acrylic resin
654
Spray
E


2125
1
6.5
1.133
48
Alkali silicate
700
Spray
E


2126
1
19.5
1.195
75
Alkyl silicate
555
Spray
E


2127
1
0.8
10.222
55
Alkyl silicate
321
Spray
E


2128
1
5.3
0.013
38
Alkyl silicate
152
Brush
E


2129
1
4.3
2.868
48
Urethane resin
674
Spray
E


2130
1
3.2
1.524
76
Polyester resin
325
Spray
E


2131
1
1.5
1.280
72
Alkyl silicate
665
Spray
E


2132
1
4.5
1.109
75
Alkyl silicate
354
Brush
E


2133
1
0.8
9.333
76
Alkyl silicate
165
Spray
E


2134
1
6.5
3.667
72
Urethane resin
354
Spray
E






















TABLE 109










Percent







Diameter
of fine-




distribution
grain




(Ave
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks


















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
Ave aspect ratio





2135
23.5
2.65
9.56
5.66
100
0
0
0
No
—


2136
5.96
0.05
6.5
16.55
100
0
0
0
No
—


2137
10.64
4.6
65.5
21.55
100
0
0
0
No
—


2138
16.5
3.56
13.5
5.66
100
0
0
0
No
—


2139
7.95
4.55
16.7
33.66
100
0
0
0
No
—


2140
7.95
2.15
9.89
45.65
100
0
0
0
No
—


2141
9.64
3.22
10.55
49.88
100
0
0
0
No
—


2142
0.96
2.99
9.64
42.33
100
0
0
0
No
—


2143
5.26
3.65
11.22
65.44
100
0
0
0
No
—


2144
13.5
4.55
13.5
77.55
100
0
0
0
No
—


2145
13.5
3.57
22.5
96.55
100
0
0
0
No
—


2146
9.64
1.99
8.56
5.97
100
0
0
0
No
—


2147
16.5
2.12
9.46
87.77
100
0
0
0
No
—


2148
20.59
2.45
11.1
86.55
100
0
0
0
No
—


2149
0.96
1.85
8.92
15.67
100
0
0
0
No
—


2150
6.54
1.65
9.23
31.55
100
0
0
0
No
—


2151
5.26
2.45
9.05
26.76
100
0
0
0
No
—


2152
10.64
2.01
10.91
67.89
100
0
0
0
No
—


2153
9.64
1.99
11.12
56.89
100
0
0
0
No
—


2154
6.9
2.38
10.93
45.67
100
0
0
0
No
—


2155
10.5
2.49
9.34
34.67
100
0
0
0
No
—















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2135
1
299.5
—
35
Alkali silicate
2
Spray
G


2136
1
12.5
—
66
Alkyl silicate
37
Spray
E


2137
1
3.5
—
38
Alkali silicate
12
Spray
E


2138
1
1.4
—
84
Alkyl silicate
160
Brush
E


2139
1
6.8
—
39
Alkali silicate
5
Brush
G


2140
1
136.5
—
85
Alkyl silicate
12
Brush
E


2141
1
14.5
—
36
Alkali silicate
2
Spray
G


2142
1
0.08
—
56
Alkyl silicate
18
Spray
E


2143
1
1.6
—
42
Alkyl silicate
23
Spray
E


2144
1
3.9
—
31
Epoxy resin
30
Brush
E


2145
1
10.5
—
88
Acrylic resin
77
Brush
E


2146
1
4.9
—
78
Urethane resin
254
Brush
E


2147
1
33.5
—
36
Polyester resin
47
Spray
E


2148
1
2.5
—
37
Epoxy resin
43
Spray
E


2149
1
1.9
—
45
Acrylic resin
322
Brush
E


2150
1
7.1
—
68
Urethane resin
20
Brush
E


2151
1
9.4
—
79
Polyester resin
700
Brush
E


2152
1
16.8
—
47
Alkali silicate
22
Spray
E


2153
1
75.5
—
56
Alkyl silicate
25
Spray
E


2154
1
4.5
—
37
Alkali silicate
14
Spray
E


2155
1
0.9
—
90
Urethane resin
112
Spray
E






















TABLE 110










Percent







Diameter
of fine-




distribution
grain




(Ave
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn

Alloy



of later-
grains/Zn
metal
Chemical component
grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks


















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
Ave aspect ratio





2156
13.5
2.34
8.77
95.66
100
0
0
0
No
—


2157
20.59
3.99
27.6
34.21
100
0
0
0
No
—


2158
7.82
1.02
21.9
7.88
100
0
0
0
No
—


2159
5.26
0.05
22.5
92.32
100
0
0
0
No
—


2160
7.06
2.01
17.5
11.22
100
0
0
0
No
—


2161
0.64
1.51
6.99
55.66
100
0
0
0
No
—


2162
46.8
2.38
7.65
78.99
100
0
0
0
No
—


2163
9.64
1.99
8.56
5.97
100
0
0
0
No
—


2164
16.5
2.49
9.34
34.67
100
0
0
0
No
—


2165
20.59
1.02
21.9
7.88
100
0
0
0
No
—


2166
16..5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12


2167
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38


2168
0.96
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22


2169
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14


2170
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02


2171
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05


2172
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36


2173
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11


2174
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07


2175
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42


2176
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2156
1
3.2
—
43
Alkali silicate
554
Spray
E


2157
1
5.2
—
38
Urethane resin
150
Spray
E


2158
1
1.6
—
56
Alkali silicate
18
Spray
E


2159
1
85.5
—
89
Alkyl silicate
657
Brush
E


2160
1
52.2
—
32
Alkyl silicate
24
Spray
E


2161
1
3.6
—
55
Urethane resin
99
Spray
E


2162
1
1.7
—
79
Alkyl silicate
7
Spray
E


2163
1
4.9
—
78
Epoxy resin
100
Spray
E


2164
1
33.5
—
77
Alkyl silicate
27
Brush
E


2165
1
2.5
—
56
Alkali silicate
15
Spray
E


2166
1
5
1.867
49
Alkyl silicate
14
Spray
E


2167
1
198.7
0.047
89
Urethane resin
55
Spray
E


2168
1
36
0.500
90
Alkyl silicate
8
Spray
E


2169
1
1.5
0.012
86
Urethane resin
122
Brush
E


2170
1
0.008
1.587
48
Alkyl silicate
555
Spray
E


2171
1
1.4
2.833
47
Alkali silicate
19
Spray
E


2172
1
4.2
2.673
47
Alkyl silicate
25
Brush
E


2173
1
1.6
0.731
47
Alkyl silicate
58
Spray
E


2174
1
7.5
0.671
52
Alkyl silicate
685
Spray
E


2175
1
1.6
3.538
52
Alkali silicate
19
Brush
E


2176
1
2
5.133
52
Urethane resin
700
Spray
E






















TABLE 111










Percent







Diameter
of fine-




distribution
grain




(Ave
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2177
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22


2178
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14


2179
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13


2180
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02


2181
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06


2182
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05


2183
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24


2184
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33


2185
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27


2186
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05


2187
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22


2188
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13


2189
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06


2190
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05


2191
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24


2192
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05


2193
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12


2194
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38


2195
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13


2196
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33


2197
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2177
1
270
0.069
88
Alkyl silicate
77
Spray
E


2178
1
7.5
0.424
87
Alkyl silicate
54
Spray
E


2179
1
2.9
1.385
89
Alkyl silicate
64
Spray
E


2180
1
2.6
2.111
90
Alkyl silicate
34
Brush
E


2181
1
0.1
22.273
91
Alkali silicate
28
Spray
E


2182
1
1.2
8.000
46
Urethane resin
109
Brush
E


2183
1
1.2
0.636
47
Alkyl silicate
15
Spray
E


2184
1
62
0.341
47
Alkyl silicate
14
Spray
E


2185
1
2.4
3.059
49
Alkyl silicate
18
Spray
E


2186
1
2.1
4.129
50
Alkali silicate
2
Spray
G


2187
1
34.5
0.220
87
Alkyl silicate
37
Spray
E


2188
1
270
0.109
83
Alkali silicate
12
Spray
E


2189
1
32.5
0.254
48
Alkyl silicate
160
Brush
E


2190
1
3
6.375
51
Alkali silicate
5
Brush
G


2191
1
1.5
0.028
51
Alkyl silicate
56
Brush
E


2192
1
7.5
1.271
87
Alkali silicate
2
Spray
G


2193
1
13.5
0.772
85
Alkyl silicate
18
Spray
E


2194
1
5
4.083
86
Alkyl silicate
23
Spray
E


2195
1
5
2.900
50
Epoxy resin
30
Brush
E


2196
1
1
0.650
51
Acrylic resin
77
Brush
E


2197
1
120
0.161
51
Urethane resin
655
Brush
E






















TABLE 112










Percent







Diameter
of fine-




distribution
grain




(Ave
metal



Average
diameter) of
grains



diameter
Zn metal
among Zn



of later-
grains/Zn
metal
Chemical component
Alloy grain



added Zn
alloy grains
grains/
content of Zn metal
fracture


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces














Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Ave

















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio





2198
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23


2199
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11


2200
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42


2201
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06


2202
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05


2203
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07


2204
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42


2205
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38


2206
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22


2207
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14


2208
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13


2209
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02


2210
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06


2211
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05


2212
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24


2213
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33


2214
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27


2215
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05


2216
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12


2217
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23


2218
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36















Ratio of (Zn metal






grains or Zn alloy

Coating details












grains):(Later-added
Mg
Total




Zn metal grains)
content
metal
















Zn metal
Later-
of all
grain






Invention
grains/
added Zn
metal
content

Coat

Corrosion


Example
Zn alloy
metal
grains
of coat

thickness
Coating
Test


No
grains
grains
(Mass %)
(Mass %)
Base resin type
(μm)
method
Results





2198
1
3.7
2.298
80
Polyester resin
47
Spray
E


2199
1
6.1
1.676
46
Epoxy resin
43
Spray
E


2200
1
198.5
0.048
51
Acrylic resin
52
Brush
E


2201
1
2.5
3.000
86
Urethane resin
20
Brush
E


2202
1
18.5
0.774
85
Polyester resin
200
Brush
E


2203
1
8
1.867
82
Alkali silicate
22
Spray
E


2204
1
1.6
4.077
81
Alkyl silicate
25
Spray
E


2205
1
1.2
6.045
46
Alkali silicate
14
Spray
E


2206
1
0.5
0.933
47
Urethane resin
112
Spray
E


2207
1
9
2.350
48
Alkali silicate
24
Spray
E


2208
1
4.5
1.618
51
Urethane resin
150
Spray
E


2209
1
136
0.109
53
Alkali silicate
18
Spray
E


2210
1
13
1.314
88
Alkyl silicate
19
Brush
E


2211
1
10.6
0.181
85
Alkyl silicate
24
Spray
E


2212
1
1.6
2.000
83
Urethane resin
99
Spray
E


2213
1
68
0.223
82
Alkyl silicate
7
Spray
E


2214
1
4.5
1.945
83
Epoxy resin
100
Spray
E


2215
1
10.5
1.452
47
Alkyl silicate
27
Brush
E


2216
1
4.9
3.322
51
Alkali silicate
15
Spray
E


2217
1
10.5
1.261
52
Alkyl silicate
14
Spray
E


2218
1
192
0.074
51
Urethane resin
55
Spray
E
























TABLE 113











Percent








Diameter
of fine-




distribution
grain



Ratio of (Zn




(Ave
metal



metal grains or



Average
diameter) of
grains



Zn alloy grains):(Later-



diameter
Zn metal
among Zn

Alloy

added



of later-
grains/Zn
metal
Chemical component
grain

Zn metal grains)
















added Zn
alloy grains
grains/
content of Zn metal
fracture

Zn metal
Later-


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces
Ave
grains/
added Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
Zn alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





2219
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
1
0.07


2220
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
1
9.5


2221
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
1
2.6


2222
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
1
4.5


2223
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
1
3


2224
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
1
7.5


2225
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
1
77


2226
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
1
10.5


2227
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
1
15.5


2228
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
1
5.8


2229
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
1
1.9


2230
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
1
16.9


2231
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
1
1.5


2232
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
1
0.05


2233
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
1
215


2234
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
1
4.2


2235
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
1
1.5


2236
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
1
4.8


2237
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
1
0.5


2238
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
1
2.3


2239
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
1
0.05













Coating details

















Mg
Total








content
metal




of all
grain



Invention
metal
content

Coat



Example
grains
of coat

thickness
Coating
Corrosion



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results







2219
11.869
52
Alkyl silicate
8
Spray
E



2220
1.000
89
Urethane resin
122
Brush
E



2221
3.278
85
Alkyl silicate
54
Spray
E



2222
2.327
82
Alkali silicate
19
Spray
E



2223
1.550
87
Alkyl silicate
25
Brush
E



2224
1.906
88
Alkyl silicate
58
Spray
E



2225
0.251
49
Alkyl silicate
21
Spray
E



2226
1.078
50
Alkali silicate
19
Brush
E



2227
0.648
51
Urethane resin
56
Spray
E



2228
1.250
52
Alkyl silicate
77
Spray
E



2229
1.759
53
Alkyl silicate
12
Spray
E



2230
1.369
88
Alkyl silicate
64
Spray
E



2231
5.400
85
Alkyl silicate
34
Brush
E



2232
19.048
83
Alkali silicate
28
Spray
E



2233
0.072
81
Urethane resin
109
Brush
E



2234
2.019
80
Alkyl silicate
15
Spray
E



2235
3.160
47
Alkyl silicate
14
Spray
E



2236
0.828
49
Alkyl silicate
18
Spray
E



2237
12.267
50
Urethane resin
122
Brush
E



2238
3.848
51
Alkyl silicate
54
Spray
E



2239
9.810
52
Alkali silicate
19
Spray
E

























TABLE 114











Percent








Diameter
of fine-




distribution
grain



Ratio of (Zn




(Ave
metal



metal grains or



Average
diameter) of
grains



Zn alloy grains):(Later-



diameter
Zn metal
among Zn

Alloy

added



of later-
grains/Zn
metal
Chemical component
grain

Zn metal grains)
















added Zn
alloy grains
grains/
content of Zn metal
fracture

Zn metal
Later-


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces
Ave
grains/
added Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
Zn alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





2240
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
1
120


2241
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
1
3.7


2242
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
1
16.5


2243
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
1
24


2244
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
1
0.01


2245
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
1
7.8


2246
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
1
1.6


2247
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
1
3.2


2248
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
1
5.4


2249
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
1
220


2250
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
1
2.2


2251
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
1
2.8


2252
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
1
12


2253
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
1
10.6


2254
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
1
35


2255
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
1
125.5


2256
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
1
6


2257
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
1
34


2258
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
1
1.6


2259
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
1
7.5


2260
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
1
200













Coating details

















Mg
Total








content
metal




of all
grain



Invention
metal
content

Coat



Example
grains
of coat

thickness
Coating
Corrosion



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results







2240
0.172
83
Alkyl silicate
25
Brush
E



2241
0.532
88
Alkyl silicate
58
Spray
E



2242
0.869
85
Alkyl silicate
21
Spray
E



2243
0.768
83
Alkali silicate
19
Brush
E



2244
13.366
82
Urethane resin
56
Spray
E



2245
1.352
47
Alkyl silicate
77
Spray
E



2246
4.077
46
Alkyl silicate
54
Spray
E



2247
3.667
49
Alkali silicate
2
Spray
G



2248
0.406
50
Alkali silicate
20
Spray
E



2249
0.076
51
Alkali silicate
5
Spray
G



2250
2.531
83
Alkyl silicate
20
Spray
E



2251
3.605
82
Alkali silicate
15
Brush
E



2252
1.423
88
Alkyl silicate
57
Brush
E



2253
0.207
85
Alkali silicate
13
Brush
E



2254
0.303
86
Alkyl silicate
22
Brush
E



2255
0.057
47
Alkali silicate
20
Spray
E



2256
2.500
48
Alkyl silicate
27
Spray
E



2257
0.417
50
Alkali silicate
15
Spray
E



2258
3.615
51
Alkyl silicate
35
Spray
E



2259
0.835
52
Alkali silicate
34
Brush
E



2260
0.112
88
Alkyl silicate
45
Brush
E

























TABLE 115











Percent








Diameter
of fine-




distribution
grain



Ratio of (Zn




(Ave
metal



metal grains or



Average
diameter) of
grains



Zn alloy grains):(Later-



diameter
Zn metal
among Zn

Alloy

added



of later-
grains/Zn
metal
Chemical component
grain

Zn metal grains)
















added Zn
alloy grains
grains/
content of Zn metal
fracture

Zn metal
Later-


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces
Ave
grains/
added Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
Zn alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





2261
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
1
7.5


2262
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
1
3.2


2263
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
1
2.6


2264
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
1
3


2265
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
1
15.2


2266
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
1
0.09


2267
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
1
13.5


2268
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
1
135.4


2269
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
1
3


2270
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
1
7.8


2271
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
1
10.2


2272
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
1
7


2273
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
1
225.2


2274
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
1
5.4


2275
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
1
3.2


2276
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
1
13.5


2277
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
1
1.6


2278
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
1
1.5


2279
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
1
2.5


2280
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
1
2.6


2281
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
1
126













Coating details

















Mg
Total








content
metal




of all
grain



Invention
metal
content

Coat



Example
grains
of coat

thickness
Coating
Corrosion



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results







2261
1.612
89
Alkali silicate
52
Brush
E



2262
3.071
86
Alkyl silicate
23
Brush
E



2263
1.194
87
Alkali silicate
5
Spray
E



2264
4.400
86
Alkyl silicate
52
Brush
E



2265
0.037
46
Alkali silicate
150
Brush
E



2266
9.450
49
Alkyl silicate
60
Brush
E



2267
0.483
35
Alkali silicate
15
Spray
E



2268
0.172
37
Alkyl silicate
24
Spray
E



2269
4.375
36
Alkali silicate
34
Spray
E



2270
1.409
38
Alkyl silicate
20
Brush
E



2271
1.330
48
Alkali silicate
200
Brush
E



2272
2.588
46
Alkyl silicate
56
Brush
E



2273
0.038
51
Alkali silicate
34
Spray
E



2274
2.219
46
Alkyl silicate
2
Spray
G



2275
0.019
38
Alkali silicate
15
Spray
E



2276
1.048
48
Alkali silicate
10
Spray
E



2277
6.692
52
Alkyl silicate
125
Brush
E



2278
0.320
30
Alkali silicate
24
Brush
E



2279
1.829
76
Alkyl silicate
110
Brush
E



2280
0.889
72
Alkali silicate
24
Brush
E



2281
0.072
81
Alkyl silicate
2
Spray
G

























TABLE 116











Percent








Diameter
of fine-




distribution
grain



Ratio of (Zn




(Ave
metal



metal grains or



Average
diameter) of
grains



Zn alloy grains):(Later-



diameter
Zn metal
among Zn

Alloy

added



of later-
grains/Zn
metal
Chemical component
grain

Zn metal grains)
















added Zn
alloy grains
grains/
content of Zn metal
fracture

Zn metal
Later-


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces
Ave
grains/
added Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
Zn alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





2282
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
1
120


2283
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
1
7.5


2284
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
1
6.5


2285
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
1
20


2286
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
1
0.007


2287
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
1
9


2288
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
1
7.5


2289
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
1
50


2290
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
1
0.005


2291
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
1
25.6


2292
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
1
56.5


2293
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
1
1.6


2294
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
1
3


2295
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
1
100


2296
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
1
65.5


2297
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
1
1.9


2298
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
1
2.1


2299
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
1
10.5


2300
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
1
6.5


2301
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
1
19.5


2302
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
1
0.8













Coating details

















Mg
Total








content
metal




of all
grain



Invention
metal
content

Coat



Example
grains
of coat

thickness
Coating
Corrosion



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results







2282
0.159
64
Alkali silicate
37
Spray
E



2283
1.776
69
Alkyl silicate
113
Brush
E



2284
1.933
83
Alkali silicate
2
Spray
G



2285
0.500
30
Alkyl silicate
75
Brush
E



2286
7.448
83
Alkali silicate
30
Brush
E



2287
0.610
75
Alkyl silicate
34
Brush
E



2288
1.976
76
Epoxy resin
124
Brush
E



2289
0.539
72
Acrylic resin
15
Spray
E



2290
2.886
71
Urethane resin
23
Spray
E



2291
0.169
82
Polyester resin
157
Brush
E



2292
0.001
81
Epoxy resin
26
Spray
E



2293
1.192
83
Acrylic resin
38
Spray
E



2294
5.125
50
Urethane resin
160
Brush
E



2295
0.292
72
Polyester resin
27
Brush
E



2296
0.114
47
Epoxy resin
180
Brush
E



2297
0.241
47
Acrylic resin
26
Spray
E



2298
1.484
52
Urethane resin
180
Brush
E



2299
0.722
52
Polyester resin
15
Spray
E



2300
1.573
50
Epoxy resin
2
Spray
G



2301
0.629
46
Acrylic resin
28
Spray
E



2302
0.333
47
Urethane resin
30
Spray
E

























TABLE 117











Percent








Diameter
of fine-




distribution
grain



Ratio of (Zn




(Ave
metal



metal grains or



Average
diameter) of
grains



Zn alloy grains):(Later-



diameter
Zn metal
among Zn

Alloy

added



of later-
grains/Zn
metal
Chemical component
grain

Zn metal grains)
















added Zn
alloy grains
grains/
content of Zn metal
fracture

Zn metal
Later-


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces
Ave
grains/
added Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
Zn alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





2303
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
1
18.5


2304
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
1
4.3


2305
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
1
3.2


2306
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
1
1.5


2307
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
1
4.5


2308
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
1
15.5


2309
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
1
10.5


2310
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
1
2.5


2311
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
1
9


2312
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
1
105


2313
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
1
5.7


2314
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
1
3.9


2315
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
1
4.5


2316
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
1
3.6


2317
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
1
16.4


2318
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
1
6


2319
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
1
7.5


2320
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
1
10.5


2321
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
1
2.6


2322
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
1
1.5


2323
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
1
13.5


2324
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
1
2.6













Coating details

















Mg
Total








content
metal




of all
grain



Invention
metal
content

Coat



Example
grains
of coat

thickness
Coating
Corrosion



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results







2303
0.487
83
Polyester resin
2
Spray
G



2304
2.208
52
Epoxy resin
157
Brush
E



2305
2.238
89
Acrylic resin
28
Brush
E



2306
4.680
85
Alkyl silicate
130
Brush
E



2307
0.764
53
Alkyl silicate
29
Brush
E



2308
0.170
88
Epoxy resin
30
Brush
E



2309
1.209
85
Acrylic resin
120
Brush
E



2310
4.171
52
Urethane resin
187
Brush
E



2311
2.640
83
Polyester resin
28
Spray
E



2312
0.156
88
Epoxy resin
5
Spray
E



2313
2.910
49
Acrylic resin
35
Spray
E



2314
0.327
50
Urethane resin
5
Spray
G



2315
1.091
51
Polyester resin
200
Brush
E



2316
1.826
83
Alkali silicate
25
Spray
E



2317
0.764
82
Alkali silicate
15
Spray
E



2318
2.657
88
Alkyl silicate
20
Spray
E



2319
0.212
85
Alkali silicate
18
Spray
E



2320
0.357
87
Alkyl silicate
22
Spray
E



2321
4.639
86
Alkali silicate
19
Spray
E



2322
0.160
46
Alkyl silicate
29
Spray
E



2323
0.731
49
Alkali silicate
23
Spray
E



2324
1.917
35
Alkyl silicate
21
Spray
E

























TABLE 118











Percent








Diameter
of fine-




distribution
grain



Ratio of (Zn




(Ave
metal



metal grains or



Average
diameter) of
grains



Zn alloy grains):(Later-



diameter
Zn metal
among Zn

Alloy

added



of later-
grains/Zn
metal
Chemical component
grain

Zn metal grains)
















added Zn
alloy grains
grains/
content of Zn metal
fracture

Zn metal
Later-


Invention
metal
(μm)
Zn alloy
grains/Zn alloy grains
surfaces
Ave
grains/
added Zn
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
Zn alloy
metal



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
grains
grains





2325
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
1
6.5


2326
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
1
1.6


2327
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
1
3.8


2328
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
1
0.08


2329
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
1
164.5


2330
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
1
3.6


2331
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
1
8.6


2332
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
1
12


2333
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
1
5.8


2334
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
1
10


2335
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
1
1


2336
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
1
10.5


2337
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
1
6.5


2338
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
1
19.5


2339
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
1
0.8


2340
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
1
5.3


2341
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
1
4.3


2342
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
1
3.2


2343
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
1
1.5


2344
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
1
4.5


2345
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
1
0.8


2346
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
1
6.5













Coating details

















Mg
Total








content
metal




of all
grain



Invention
metal
content

Coat



Example
grains
of coat

thickness
Coating
Corrosion



No
(Mass %)
(Mass %)
Base resin type
(μm)
method
Test Results







2325
0.007
30
Alkali silicate
19
Spray
E



2326
2.462
76
Alkyl silicate
15
Spray
E



2327
0.729
72
Alkali silicate
18
Spray
E



2328
16.204
30
Alkyl silicate
22
Spray
E



2329
0.022
83
Alkyl silicate
21
Spray
E



2330
1.283
75
Alkyl silicate
29
Spray
E



2331
1.688
76
Alkali silicate
23
Spray
E



2332
1.731
72
Alkyl silicate
21
Spray
E



2333
0.500
83
Alkali silicate
19
Spray
E



2334
2.409
50
Alkyl silicate
21
Spray
E



2335
12.750
72
Alkali silicate
19
Spray
E



2336
1.113
50
Acrylic resin
654
Spray
E



2337
1.133
48
Alkali silicate
700
Spray
E



2338
1.195
75
Alkyl silicate
555
Spray
E



2339
10.222
55
Alkyl silicate
321
Spray
E



2340
0.013
38
Alkyl silicate
152
Brush
E



2341
2.868
48
Urethane resin
674
Spray
E



2342
1.524
76
Polyester resin
325
Spray
E



2343
1.280
72
Alkyl silicate
665
Spray
E



2344
1.109
75
Alkyl silicate
354
Brush
E



2345
9.333
76
Alkyl silicate
165
Spray
E



2346
3.667
72
Urethane resin
354
Spray
E

























TABLE 119










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2347
16.5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


2348
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


2349
0.96
2.56
9.84
6.55
81.45
18.5
0
0.5
Yes
1.22
Yes
Yes


2350
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


2351
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


2352
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


2353
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


2354
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


2355
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


2356
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


2357
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


2358
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


2359
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


2360
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


2361
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


2362
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


2363
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


2364
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


2365
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


2366
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2347
1
5
1.867
49
Alkyl
14
Spray
E








silicate



2348
1
198.7
0.047
89
Urethane
55
Spray
E








resin



2349
1
1
9.250
90
Alkyl
8
Spray
E








silicate



2350
1
1.5
0.012
86
Urethane
122
Brush
E








resin



2351
1
0.008
1.587
48
Alkyl
555
Spray
E








silicate



2352
1
1.4
2.833
47
Alkali
19
Spray
E








silicate



2353
1
4.2
2.673
47
Alkyl
25
Brush
E








silicate



2354
1
1.6
0.731
47
Alkyl
58
Spray
E








silicate



2355
1
7.5
0.671
52
Alkyl
685
Spray
E








silicate



2356
1
1.6
3.538
52
Alkali
19
Brush
E








silicate



2357
1
2
5.133
52
Urethane
700
Spray
E








resin



2358
1
270
0.069
88
Alkyl
77
Spray
E








silicate



2359
1
7.5
0.424
87
Alkyl
54
Spray
E








silicate



2360
1
2.9
1.385
89
Alkyl
64
Spray
E








silicate



2361
1
2.6
2.111
90
Alkyl
34
Brush
E








silicate



2362
1
0.1
22.273
91
Alkali
28
Spray
E








silicate



2363
1
1.2
8.000
46
Urethane
109
Brush
E








resin



2364
1
1.2
0.636
47
Alkyl
15
Spray
E








silicate



2365
1
62
0.341
47
Alkyl
14
Spray
E








silicate



2366
1
2.4
3.059
49
Alkyl
18
Spray
E








silicate

























TABLE 120










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2367
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2368
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


2369
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


2370
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2371
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


2372
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


2373
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


2374
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


2375
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


2376
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


2377
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


2378
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


2379
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


2380
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


2381
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


2382
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


2383
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


2384
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


2385
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


2386
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2367
1
2.1
4.129
50
Alkali
2
Spray
G








silicate



2368
1
34.5
0.220
87
Alkyl
37
Spray
E








silicate



2369
1
270
0.109
83
Alkali
12
Spray
E








silicate



2370
1
32.5
0.254
48
Alkyl
160
Brush
E








silicate



2371
1
3
6.375
51
Alkali
5
Brush
G








silicate



2372
1
1.5
0.028
51
Alkyl
56
Brush
E








silicate



2373
1
7.5
1.271
87
Alkali
2
Spray
G








silicate



2374
1
13.5
0.772
85
Alkyl
18
Spray
E








silicate



2375
1
5
4.083
86
Alkyl
23
Spray
E








silicate



2376
1
5
2.900
50
Epoxy resin
30
Brush
E



2377
1
1
0.650
51
Acrylic resin
77
Brush
E



2378
1
120
0.161
51
Urethane
655
Brush
E








resin



2379
1
3.7
2.298
80
Polyester
47
Spray
E








resin



2380
1
6.1
1.676
46
Epoxy resin
43
Spray
E



2381
1
198.5
0.048
51
Acrylic resin
52
Brush
E



2382
1
2.5
3.000
86
Urethane
20
Brush
E








resin



2383
1
18.5
0.774
85
Polyester
200
Brush
E








resin



2384
1
8
1.867
82
Alkali
22
Spray
E








silicate



2385
1
1.6
4.077
81
Alkyl
25
Spray
E








silicate



2386
1
1.2
6.045
46
Alkali
14
Spray
E








silicate

























TABLE 121










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2387
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


2388
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


2389
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


2390
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


2391
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2392
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


2393
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


2394
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2395
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


2396
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


2397
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


2398
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


2399
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


2400
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


2401
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


2402
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


2403
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


2404
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


2405
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


2406
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2387
1
0.5
0.933
47
Urethane
112
Spray
E








resin



2388
1
9
2.350
48
Alkali
24
Spray
E








silicate



2389
1
4.5
1.618
51
Urethane
150
Spray
E








resin



2390
1
136
0.109
53
Alkali
18
Spray
E








silicate



2391
1
13
1.314
88
Alkyl
19
Brush
E








silicate



2392
1
10.6
0.181
85
Alkyl
24
Spray
E








silicate



2393
1
1.6
2.000
83
Urethane
99
Spray
E








resin



2394
1
68
0.223
82
Alkyl
7
Spray
E








silicate



2395
1
4.5
1.945
83
Epoxy resin
100
Spray
E



2396
1
10.5
1.452
47
Alkyl
27
Brush
E








silicate



2397
1
4.9
3.322
51
Alkali
15
Spray
E








silicate



2398
1
10.5
1.261
52
Alkyl
14
Spray
E








silicate



2399
1
192
0.074
51
Urethane
55
Spray
E








resin



2400
1
0.07
11.869
52
Alkyl
8
Spray
E








silicate



2401
1
9.5
1.000
89
Urethane
122
Brush
E








resin



2402
1
2.6
3.278
85
Alkyl
54
Spray
E








silicate



2403
1
4.5
2.327
82
Alkali
19
Spray
E








silicate



2404
1
3
1.550
87
Alkyl
25
Brush
E








silicate



2405
1
7.5
1.906
88
Alkyl
58
Spray
E








silicate



2406
1
77
0.251
49
Alkyl
21
Spray
E








silicate

























TABLE 122










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2407
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


2408
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


2409
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


2410
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


2411
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


2412
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


2413
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


2414
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


2415
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


2416
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


2417
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


2418
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


2419
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


2420
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


2421
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


2422
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


2423
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


2424
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


2425
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2407
1
10.5
1.078
50
Alkali
19
Brush
E








silicate



2408
1
15.5
0.648
51
Urethane
56
Spray
E








resin



2409
1
5.8
1.250
22
Alkyl
77
Spray
E








silicate



2410
1
1.9
1.759
53
Alkyl
12
Spray
E








silicate



2411
1
16.9
1.369
88
Alkyl
64
Spray
E








silicate



2412
1
1.5
5.400
85
Alkyl
34
Brush
E








silicate



2413
1
0.05
19.048
83
Alkali
28
Spray
E








silicate



2414
1
215
0.072
81
Urethane
109
Brush
E








resin



2415
1
4.2
2.019
80
Alkyl
15
Spray
E








silicate



2416
1
1.5
3.160
47
Alkyl
14
Spray
E








silicate



2417
1
4.8
0.828
49
Alkyl
18
Spray
E








silicate



2418
1
0.5
12.267
50
Urethane
122
Brush
E








resin



2419
1
2.3
3.848
51
Alkyl
54
Spray
E








silicate



2420
1
0.05
9.810
52
Alkali
19
Spray
E








silicate



2421
1
120
0.172
83
Alkyl
25
Brush
E








silicate



2422
1
3.7
0.532
88
Alkyl
58
Spray
E








silicate



2423
1
16.5
0.869
85
Alkyl
21
Spray
E








silicate



2424
1
24
0.768
83
Alkali
19
Brush
E








silicate



2425
1
0.01
13.366
82
Urethane
56
Spray
E








resin

























TABLE 123










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2426
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes


2427
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


2428
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2429
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


2430
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


2431
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


2432
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


2433
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


2434
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


2435
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


2436
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


2437
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


2438
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


2439
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


2440
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


2441
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


2442
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


2443
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


2444
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


2445
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2426
1
7.8
1.352
47
Alkyl
77
Spray
E








silicate



2427
1
1.6
4.077
46
Alkyl
54
Spray
E








silicate



2428
1
3.2
3.667
49
Alkali
2
Spray
G








silicate



2429
1
5.4
0.406
50
Alkali
20
Spray
E








silicate



2430
1
220
0.076
51
Alkali
5
Spray
G








silicate



2431
1
2.2
2.531
83
Alkyl
20
Spray
E








silicate



2432
1
2.8
3.605
82
Alkali
15
Brush
E








silicate



2433
1
12
1.423
88
Alkyl
57
Brush
E








silicate



2434
1
10.6
0.207
85
Alkali
13
Brush
E








silicate



2435
1
35
0.303
86
Alkyl
22
Brush
E








silicate



2436
1
125.5
0.057
47
Alkali
20
Spray
E








silicate



2437
1
6
2.500
48
Alkyl
27
Spray
E








silicate



2438
1
34
0.417
50
Alkali
15
Spray
E








silicate



2439
1
1.6
3.615
51
Alkyl
35
Spray
E








silicate



2440
1
7.5
0.835
52
Alkali
34
Brush
E








silicate



2441
1
200
0.112
88
Alkyl
45
Brush
E








silicate



2442
1
7.5
1.612
89
Alkali
52
Brush
E








silicate



2443
1
3.2
3.071
86
Alkyl
23
Brush
E








silicate



2444
1
2.6
1.194
87
Alkali
5
Spray
E








silicate



2445
1
3
4.400
86
Alkyl
52
Brush
E








silicate

























TABLE 124










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2446
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes


2447
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


2448
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


2449
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


2450
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


2451
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


2452
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


2453
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


2454
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


2455
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


2456
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


2457
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


2458
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


2459
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


2460
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


2461
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


2462
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


2463
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


2464
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


2465
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2446
1
15.2
0.037
46
Alkali
150
Brush
E








silicate



2447
1
0.09
9.450
49
Alkyl
60
Brush
E








silicate



2448
1
13.5
0.483
35
Alkali
15
Spray
E








silicate



2449
1
135.4
0.172
37
Alkyl
24
Spray
E








silicate



2450
1
3
4.375
36
Alkali
34
Spray
E








silicate



2451
1
7.8
1.409
38
Alkyl
20
Brush
E








silicate



2452
1
10.2
1.330
48
Alkali
200
Brush
E








silicate



2453
1
7
2.588
46
Alkyl
56
Brush
E








silicate



2454
1
225.2
0.038
51
Alkali
34
Spray
E








silicate



2455
1
5.4
2.219
46
Alkyl
2
Spray
G








silicate



2456
1
3.2
0.019
38
Alkali
15
Spray
E








silicate



2457
1
13.5
1.048
48
Alkali
10
Spray
E








silicate



2458
1
1.6
6.692
52
Alkyl
125
Brush
E








silicate



2459
1
1.5
0.320
30
Alkali
24
Brush
E








silicate



2460
1
2.5
1.829
76
Alkyl
110
Brush
E








silicate



2461
1
2.6
0.889
72
Alkali
24
Brush
E








silicate



2462
1
126
0.072
81
Alkyl
2
Spray
G








silicate



2463
1
120
0.159
64
Alkali
37
Spray
E








silicate



2464
1
7.5
1.776
69
Alkyl
113
Brush
E








silicate



2465
1
6.5
1.933
83
Alkali
2
Spray
G








silicate

























TABLE 125










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2466
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes


2467
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


2468
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


2469
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


2470
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


2471
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


2472
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


2473
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


2474
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


2475
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


2476
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


2477
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


2478
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


2479
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


2480
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


2481
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


2482
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


2483
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


2484
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


2485
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2466
1
20
0.500
30
Alkyl
75
Brush
E








silicate



2467
1
0.007
7.448
83
Alkali
30
Brush
E








silicate



2468
1
9
0.610
75
Alkyl
34
Brush
E








silicate



2469
1
7.5
1.976
76
Epoxy resin
124
Brush
E



2470
1
50
0.539
72
Acrylic resin
15
Spray
E



2471
1
0.005
2.886
71
Urethane
23
Spray
E








resin



2472
1
25.6
0.169
82
Polyester
157
Brush
E








resin



2473
1
56.5
0.001
81
Epoxy resin
26
Spray
E



2474
1
1.6
1.192
83
Acrylic resin
38
Spray
E



2475
1
3
5.125
50
Urethane
160
Brush
E








resin



2476
1
100
0.292
72
Polyester
27
Brush
E








resin



2477
1
65.5
0.114
47
Epoxy resin
180
Brush
E



2478
1
1.9
0.241
47
Acrylic resin
26
Spray
E



2479
1
2.1
1.484
52
Urethane
180
Brush
E








resin



2480
1
10.5
0.722
52
Polyester
15
Spray
E








resin



2481
1
6.5
1.573
50
Epoxy resin
2
Spray
G



2482
1
19.5
0.629
46
Acrylic resin
28
Spray
E



2483
1
0.8
0.333
47
Urethane
30
Spray
E








resin



2484
1
18.5
0.487
83
Polyester
2
Spray
G








resin



2485
1
4.3
2.208
52
Epoxy resin
157
Brush
E

























TABLE 126










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2487
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


2488
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


2489
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


2490
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


2491
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


2492
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


2493
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


2494
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


2495
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


2496
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


2497
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


2498
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


2499
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


2500
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


2501
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


2502
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


2503
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


2504
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


2505
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


2506
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2487
1
1.5
4.680
85
Alkyl
130
Brush
E








silicate



2488
1
4.5
0.764
53
Alkyl
29
Brush
E








silicate



2489
1
15.5
0.170
88
Epoxy resin
30
Brush
E



2490
1
10.5
1.209
85
Acrylic resin
120
Brush
E



2491
1
2.5
4.171
52
Urethane
187
Brush
E








resin



2492
1
9
2.640
83
Polyester
28
Spray
E








resin



2493
1
10.5
0.156
88
Epoxy resin
5
Spray
E



2494
1
5.7
2.910
49
Acrylic resin
35
Spray
E



2495
1
3.9
0.327
50
Urethane
5
Spray
G








resin



2496
1
4.5
1.091
51
Polyester
200
Brush
E








resin



2497
1
3.6
1.826
83
Alkali
25
Spray
E








silicate



2498
1
16.4
0.764
82
Alkali
15
Spray
E








silicate



2499
1
6
2.657
88
Alkyl
20
Spray
E








silicate



2500
1
7.5
0.212
85
Alkali
18
Spray
E








silicate



2501
1
10.5
0.357
87
Alkyl
22
Spray
E








silicate



2502
1
2.6
4.639
86
Alkali
19
Spray
E








silicate



2503
1
1.5
0.160
46
Alkyl
29
Spray
E








silicate



2504
1
13.5
0.731
49
Alkali
23
Spray
E








silicate



2505
1
2.6
1.917
35
Alkyl
21
Spray
E








silicate



2506
1
6.5
0.007
30
Alkali
19
Spray
E








silicate

























TABLE 127










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution



Average
diameter) of
grains



phase and
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2507
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes


2508
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes


2509
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes


2510
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes


2511
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes


2512
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes


2513
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes


2514
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes


2515
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes


2516
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes


2517
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2518
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2519
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes


2520
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2521
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes


2522
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes


2523
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes


2524
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes


2525
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes


2526
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes


2527
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2507
1
1.6
2.462
76
Alkyl
15
Spray
E








silicate



2508
1
3.8
0.729
72
Alkali
18
Spray
E








silicate



2509
1
0.08
16.204
30
Alkyl
22
Spray
E








silicate



2510
1
164.5
0.022
83
Alkyl
21
Spray
E








silicate



2511
1
3.6
1.283
75
Alkyl
29
Spray
E








silicate



2512
1
8.6
1.688
76
Alkali
23
Spray
E








silicate



2513
1
12
1.731
72
Alkyl
21
Spray
E








silicate



2514
1
5.8
0.500
83
Alkali
19
Spray
E








silicate



2515
1
10
2.409
50
Alkyl
21
Spray
E








silicate



2516
1
1
12.750
72
Alkali
19
Spray
E








silicate



2517
1
10.5
1.113
50
Acrylic resin
654
Spray
E



2518
1
6.5
1.133
48
Alkali
700
Spray
E








silicate



2519
1
19.5
1.195
75
Alkyl
555
Spray
E








silicate



2520
1
0.8
10.222
55
Alkyl
12
Spray
E








silicate



2521
1
5.3
0.013
38
Alkyl
678
Brush
E








silicate



2522
1
4.3
2.868
48
Urethane
674
Spray
E








resin



2523
1
3.2
1.524
76
Polyester
325
Spray
E








resin



2524
1
1.5
1.280
72
Alkyl
665
Spray
E








silicate



2525
1
4.5
1.109
75
Alkyl
354
Brush
E








silicate



2526
1
0.8
9.333
76
Alkyl
165
Spray
E








silicate



2527
1
6.5
3.667
72
Urethane
354
Spray
E








resin

























TABLE 128










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2528
16.5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


2529
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


2530
0.96
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes
Yes


2531
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


2532
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


2533
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


2534
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


2535
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


2536
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


2537
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


2538
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


2539
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


2540
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


2541
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


2542
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


2543
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


2544
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


2545
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


2546
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


2547
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2528
1
5
1.867
49
Alkyl
14
Spray
E








silicate



2529
1
198.7
0.047
89
Urethane
55
Spray
E








resin



2530
1
36
0.500
90
Alkyl
8
Spray
E








silicate



2531
1
1.5
0.012
86
Urethane
122
Brush
E








resin



2532
1
0.008
1.587
48
Alkyl
555
Spray
E








silicate



2533
1
1.4
2.833
47
Alkali
19
Spray
E








silicate



2534
1
4.2
2.673
47
Alkyl
25
Brush
E








silicate



2535
1
1.6
0.731
47
Alkyl
58
Spray
E








silicate



2536
1
7.5
0.671
52
Alkyl
685
Spray
E








silicate



2537
1
1.6
3.538
52
Alkali
19
Brush
E








silicate



2538
1
2
5.133
52
Urethane
700
Spray
E








resin



2539
1
270
0.069
88
Alkyl
77
Spray
E








silicate



2540
1
7.5
0.424
87
Alkyl
54
Spray
E








silicate



2541
1
2.9
1.385
89
Alkyl
64
Spray
E








silicate



2542
1
2.6
2.111
90
Alkyl
34
Brush
E








silicate



2543
1
0.1
22.273
91
Alkali
28
Spray
E








silicate



2544
1
1.2
8.000
46
Urethane
109
Brush
E








resin



2545
1
1.2
0.636
47
Alkyl
15
Spray
E








silicate



2546
1
62
0.341
47
Alkyl
14
Spray
E








silicate



2547
1
2.4
3.059
49
Alkyl
18
Spray
E








silicate

























TABLE 129










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2548
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2549
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


2550
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


2551
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2552
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yea
1.05
Yes
Yes


2553
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


2554
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


2555
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


2556
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


2557
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


2558
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


2559
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


2560
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


2561
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


2562
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


2563
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


2564
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


2565
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


2566
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


2567
16.5
2.6
49.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2548
1
2.1
4.129
50
Alkali
2
Spray
G








silicate



2549
1
34.5
0.220
87
Alkyl
37
Spray
E








silicate



2550
1
270
0.109
83
Alkali
12
Spray
E








silicate



2551
1
32.5
0.254
48
Alkyl
160
Brush
E








silicate



2552
1
3
6.375
51
Alkali
5
Brush
G








silicate



2553
1
1.5
0.028
51
Alkyl
56
Brush
E








silicate



2554
1
7.5
1.271
87
Alkali
2
Spray
G








silicate



2555
1
13.5
0.772
85
Alkyl
18
Spray
E








silicate



2556
1
5
4.083
86
Alkyl
23
Spray
E








silicate



2557
1
5
2.900
50
Epoxy resin
30
Brush
E



2558
1
1
0.650
51
Acrylic resin
77
Brush
E



2559
1
120
0.161
51
Urethane
655
Brush
E








resin



2560
1
3.7
2.298
80
Polyester
47
Spray
E








resin



2561
1
6.1
1.676
46
Epoxy resin
43
Spray
E



2562
1
198.5
0.048
51
Acrylic resin
52
Brush
E



2563
1
2.5
3.000
86
Urethane
20
Brush
E








resin



2564
1
18.5
0.774
85
Polyester
200
Brush
E








resin



2565
1
8
1.867
82
Alkali
22
Spray
E








silicate



2566
1
1.6
4.077
81
Alkyl
25
Spray
E








silicate



2567
1
1.2
6.045
46
Alkali
14
Spray
E








silicate

























TABLE 130










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2568
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


2569
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


2570
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


2571
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


2572
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2573
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


2574
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


2575
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2576
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


2577
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


2578
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


2579
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


2580
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


2581
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


2582
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


2583
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


2584
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


2585
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


2586
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


2587
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2568
1
0.5
0.933
47
Urethane
112
Spray
E








resin



2569
1
9
2.350
48
Alkali
24
Spray
E








silicate



2570
1
4.5
1.618
51
Urethane
150
Spray
E








resin



2571
1
136
0.109
53
Alkali
18
Spray
E








silicate



2572
1
13
1.314
88
Alkyl
19
Brush
E








silicate



2573
1
10.6
0.181
85
Alkyl
24
Spray
E








silicate



2574
1
1.6
2.000
83
Urethane
99
Spray
E








resin



2575
1
68
0.223
82
Alkyl
7
Spray
E








silicate



2576
1
4.5
1.945
83
Epoxy resin
100
Spray
E



2577
1
10.5
1.452
47
Alkyl
27
Brush
E








silicate



2578
1
4.9
3.322
51
Alkali
15
Spray
E








silicate



2579
1
10.5
1.261
52
Alkyl
14
Spray
E








silicate



2580
1
192
0.074
51
Urethane
55
Spray
E








resin



2581
1
0.07
11.869
52
Alkyl
8
Spray
E








silicate



2582
1
9.5
1.000
89
Urethane
122
Brush
E








resin



2583
1
2.6
3.278
85
Alkyl
54
Spray
E








silicate



2584
1
4.5
2.327
82
Alkali
19
Spray
E








silicate



2585
1
3
1.550
87
Alkyl
25
Brush
E








silicate



2586
1
7.5
1.906
88
Alkyl
58
Spray
E








silicate



2587
1
77
0.251
49
Alkyl
21
Spray
E








silicate

























TABLE 131










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2588
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


2589
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


2590
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


2591
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


2592
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


2593
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


2594
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


2595
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


2596
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


2597
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


2598
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


2599
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


2600
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


2601
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


2602
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


2603
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


2604
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


2605
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


2606
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


2607
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2588
1
10.5
1.078
50
Alkali
19
Brush
E








silicate



2589
1
15.5
0.648
51
Urethane
56
Spray
E








resin



2590
1
5.8
1.250
52
Alkyl
77
Spray
E








silicate



2591
1
1.9
1.759
53
Alkyl
12
Spray
E








silicate



2592
1
16.9
1.369
88
Alkyl
64
Spray
E








silicate



2593
1
1.5
5.400
85
Alkyl
34
Brush
E








silicate



2594
1
0.05
19.048
83
Alkali
28
Spray
E








silicate



2595
1
215
0.072
81
Urethane
109
Brush
E








resin



2596
1
4.2
2.019
80
Alkyl
15
Spray
E








silicate



2597
1
1.5
3.160
47
Alkyl
14
Spray
E








silicate



2598
1
4.8
0.828
49
Alkyl
18
Spray
E








silicate



2599
1
0.5
12.267
50
Urethane
122
Brush
E








resin



2600
1
2.3
3.848
51
Alkyl
54
Spray
E








silicate



2601
1
0.05
9.810
52
Alkali
19
Spray
E








silicate



2602
1
120
0.172
83
Alkyl
25
Brush
E








silicate



2603
1
3.7
0.532
88
Alkyl
58
Spray
E








silicate



2604
1
16.5
0.869
85
Alkyl
21
Spray
E








silicate



2605
1
24
0.768
83
Alkali
19
Brush
E








silicate



2606
1
0.01
13.366
82
Urethane
56
Spray
E








resin



2607
1
7.8
1.352
47
Alkyl
77
Spray
E








silicate

























TABLE 132










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2608
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


2609
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2610
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


2611
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


2612
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


2613
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


2614
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


2615
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


2616
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


2617
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


2618
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


2619
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


2620
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


2621
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


2622
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


2623
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


2624
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


2625
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


2626
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2608
1
1.6
4.077
46
Alkyl
54
Spray
E








silicate



2609
1
3.2
3.667
49
Alkali
2
Spray
G








silicate



2610
1
5.4
0.406
50
Alkali
20
Spray
E








silicate



2611
1
220
0.076
51
Alkali
5
Spray
G








silicate



2612
1
2.2
2.531
83
Alkyl
20
Spray
E








silicate



2613
1
2.8
3.605
82
Alkali
15
Brush
E








silicate



2614
1
12
1.423
88
Alkyl
57
Brush
E








silicate



2615
1
10.6
0.207
85
Alkali
13
Brush
E








silicate



2616
1
35
0.303
86
Alkyl
22
Brush
E








silicate



2617
1
125.5
0.057
47
Alkali
20
Spray
E








silicate



2618
1
6
2.500
48
Alkyl
27
Spray
E








silicate



2619
1
34
0.417
50
Alkali
15
Spray
E








silicate



2620
1
1.6
3.615
51
Alkyl
35
Spray
E








silicate



2621
1
7.5
0.835
52
Alkali
34
Brush
E








silicate



2622
1
200
0.112
88
Alkyl
45
Brush
E








silicate



2623
1
7.5
1.612
89
Alkali
52
Brush
E








silicate



2624
1
3.2
3.071
86
Alkyl
23
Brush
E








silicate



2625
1
2.6
1.194
87
Alkali
23
Spray
E








silicate



2626
1
3
4.400
86
Alkyl
52
Brush
E








silicate

























TABLE 133










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2627
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes


2628
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


2629
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


2630
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


2631
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


2632
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


2633
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


2634
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


2635
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


2636
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


2637
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


2638
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


2639
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


2640
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


2641
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


2642
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


2643
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


2644
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


2645
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


2646
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


2647
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2627
1
15.2
0.037
46
Alkali
150
Brush
E








silicate



2628
1
0.09
9.450
49
Alkyl
60
Brush
E








silicate



2629
1
13.5
0.483
35
Alkali
15
Spray
E








silicate



2630
1
135.4
0.172
37
Alkyl
24
Spray
E








silicate



2631
1
3
4.375
36
Alkali
34
Spray
E








silicate



2632
1
7.8
1.409
38
Alkyl
20
Brush
E








silicate



2633
1
10.2
1.330
48
Alkali
200
Brush
E








silicate



2634
1
7
2.588
46
Alkyl
56
Brush
E








silicate



2635
1
225.2
0.038
51
Alkali
34
Spray
E








silicate



2636
1
5.4
2.219
46
Alkyl
2
Spray
G








silicate



2637
1
3.2
0.019
38
Alkali
15
Spray
E








silicate



2638
1
13.5
1.048
48
Alkali
10
Spray
E








silicate



2639
1
1.6
6.692
52
Alkyl
125
Brush
E








silicate



2640
1
1.5
0.320
30
Alkali
24
Brush
E








silicate



2641
1
2.5
1.829
76
Alkyl
110
Brush
E








silicate



2642
1
2.6
0.889
72
Alkali
24
Brush
E








silicate



2643
1
126
0.072
81
Alkyl
2
Spray
G








silicate



2644
1
120
0.159
64
Alkali
37
Spray
E








silicate



2645
1
7.5
1.776
69
Alkyl
113
Brush
E








silicate



2646
1
6.5
1.933
83
Alkali
2
Spray
G








silicate



2647
1
2.0
0.500
30
Alkyl
75
Brush
E








silicate

























TABLE 134










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2648
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


2649
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


2650
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


2651
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


2652
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


2653
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


2654
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


2655
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


2656
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


2657
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


2658
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


2659
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


2660
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


2661
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


2662
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


2663
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


2664
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


2665
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


2666
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


2667
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2648
1
0.007
7.448
83
Alkali
30
Brush
E








silicate



2649
1
9
0.610
75
Alkyl
34
Brush
E








silicate



2650
1
7.5
1.976
76
Epoxy resin
124
Brush
E



2651
1
50
0.539
72
Acrylic resin
15
Spray
E



2652
1
0.005
2.886
71
Urethane
23
Spray
E








resin



2653
1
25.6
0.169
82
Polyester
157
Brush
E








resin



2654
1
56.5
0.001
81
Epoxy resin
26
Spray
E



2655
1
1.6
1.192
83
Acrylic resin
38
Spray
E



2656
1
3
5.125
50
Urethane
160
Brush
E








resin



2657
1
100
0.292
72
Polyester
27
Brush
E








resin



2658
1
65.5
0.114
47
Epoxy resin
180
Brush
E



2659
1
1.9
0.241
47
Acrylic resin
26
Spray
E



2660
1
2.1
1.484
52
Urethane
180
Brush
E








resin



2661
1
10.5
0.722
52
Polyester
15
Spray
E








resin



2662
1
6.5
1.573
50
Epoxy resin
2
Spray
G



2663
1
19.5
0.629
46
Acrylic resin
28
Spray
E



2664
1
0.8
0.333
47
Urethane
30
Spray
E








resin



2665
1
18.5
0.487
83
Polyester
2
Spray
G








resin



2666
1
4.3
2.208
52
Epoxy resin
157
Brush
E



2667
1
3.2
2.238
89
Acrylic resin
28
Brush
E

























TABLE 135










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2668
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


2669
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


2670
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


2671
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


2672
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


2673
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


2674
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


2675
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


2676
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


2677
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


2678
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


2679
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


2680
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


2681
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


2682
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


2683
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


2684
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


2685
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


2686
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2668
1
1.5
4.680
85
Alkyl
130
Brush
E








silicate



2669
1
4.5
0.764
53
Alkyl
29
Brush
E








silicate



2670
1
15.5
0.170
88
Epoxy resin
30
Brush
E



2671
1
10.5
1.209
85
Acrylic resin
120
Brush
E



2672
1
2.5
4.171
52
Urethane
187
Brush
E








resin



2673
1
9
2.640
83
Polyester
28
Spray
E








resin



2674
1
10.5
0.156
88
Epoxy resin
5
Spray
E



2675
1
5.7
2.910
49
Acrylic resin
35
Spray
E



2676
1
3.9
0.327
50
Urethane
5
Spray
G








resin



2677
1
4.5
1.091
51
Polyester
200
Brush
E








resin



2678
1
3.6
1.826
83
Alkali
25
Spray
E








silicate



2679
1
16.4
0.764
82
Alkali
15
Spray
E








silicate



2680
1
6
2.657
88
Alkyl
20
Spray
E








silicate



2681
1
7.5
0.212
85
Alkali
18
Spray
E








silicate



2682
1
10.5
0.357
87
Alkyl
22
Spray
E








silicate



2683
1
2.6
4.639
86
Alkali
19
Spray
E








silicate



2684
1
1.5
0.160
46
Alkyl
29
Spray
E








silicate



2685
1
13.5
0.731
49
Alkali
23
Spray
E








silicate



2686
1
2.6
1.917
35
Alkyl
21
Spray
E








silicate

























TABLE 136










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Ave
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2687
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes


2688
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes


2689
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes


2690
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes


2691
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes


2692
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes


2693
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes


2694
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes


2695
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes


2696
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes


2697
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes


2698
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2699
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2700
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes


2701
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2702
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes


2703
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes


2704
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes


2705
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes


2706
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes


2707
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes


2708
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal


















Zn metal
Later-
of all
grain







Invention
grains/
added Zn
metal
content

Coat

Corrosion



Example
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2687
1
6.5
0.007
30
Alkali
19
Spray
E








silicate



2688
1
1.6
2.462
76
Alkyl
15
Spray
E








silicate



2689
1
3.8
0.729
72
Alkali
18
Spray
E








silicate



2690
1
0.08
16.204
30
Alkyl
22
Spray
E








silicate



2691
1
164.5
0.022
83
Alkyl
21
Spray
E








silicate



2692
1
3.6
1.283
75
Alkyl
29
Spray
E








silicate



2693
1
8.6
1.688
76
Alkali
23
Spray
E








silicate



2694
1
12
1.731
72
Alkyl
21
Spray
E








silicate



2695
1
5.8
0.500
83
Alkali
19
Spray
E








silicate



2696
1
10
2.409
50
Alkyl
21
Spray
E








silicate



2697
1
1
12.750
72
Alkali
19
Spray
E








silicate



2698
1
10.5
1.113
50
Acrylic resin
654
Spray
E



2699
1
6.5
1.133
48
Alkali
700
Spray
E








silicate



2700
1
19.5
1.195
75
Alkyl
555
Spray
E








silicate



2701
1
0.8
10.222
55
Alkyl
12
Spray
E








silicate



2702
1
5.3
0.013
38
Alkyl
678
Brush
E








silicate



2703
1
4.3
2.868
48
Urethane
674
Spray
E








resin



2704
1
3.2
1.524
76
Polyester
325
Spray
E








resin



2705
1
1.5
1.280
72
Alkyl
665
Spray
E








silicate



2706
1
4.5
1.109
75
Alkyl
354
Brush
E








silicate



2707
1
0.8
9.333
76
Alkyl
165
Spray
E








silicate



2708
1
6.5
3.667
72
Urethane
354
Spray
E








resin

























TABLE 137










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Average
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2709
16..5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


2710
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


2711
0.96
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes
Yes


2712
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


2713
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


2714
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


2715
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


2716
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


2717
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


2718
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


2719
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


2720
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


2721
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


2722
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


2723
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


2724
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


2725
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


2726
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


2727
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


2728
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal




















Zn metal
Later-
of all
grain







Invention
Number
grains/
added Zn
metal
content

Coat

Corrosion



Example
of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2709
2
1
5
1.867
49
Alkyl
14
Spray
E









silicate



2710
2
1
198.7
0.047
89
Urethane
55
Spray
E









resin



2711
2
1
36
0.500
90
Alkyl
8
Spray
E









silicate



2712
2
1
1.5
0.012
86
Urethane
122
Brush
E









resin



2713
6
1
0.008
1.587
48
Alkyl
555
Spray
E









silicate



2714
6
1
1.4
2.833
47
Alkali
19
Spray
E









silicate



2715
7
1
4.2
2.673
47
Alkyl
25
Brush
E









silicate



2716
6
1
1.6
0.731
47
Alkyl
58
Spray
E









silicate



2717
2
1
7.5
0.671
52
Alkyl
685
Spray
E









silicate



2718
7
1
1.6
3.538
52
Alkali
19
Brush
E









silicate



2719
2
1
2
5.133
52
Urethane
700
Spray
E









resin



2720
6
1
270
0.069
88
Alkyl
77
Spray
E









silicate



2721
6
1
7.5
0.424
87
Alkyl
54
Spray
E









silicate



2722
2
1
2.9
1.385
89
Alkyl
64
Spray
E









silicate



2723
2
1
2.6
2.111
90
Alkyl
34
Brush
E









silicate



2724
7
1
0.1
22.273
91
Alkali
28
Spray
E









silicate



2725
6
1
1.2
8.000
46
Urethane
109
Brush
E









resin



2726
7
1
1.2
0.636
47
Alkyl
15
Spray
E









silicate



2727
2
1
62
0.341
47
Alkyl
14
Spray
E









silicate



2728
7
1
2.4
3.059
49
Alkyl
18
Spray
E









silicate

























TABLE 138










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Average
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2729
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2730
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


2731
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


2732
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2733
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


2734
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


2735
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


2736
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


2737
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


2738
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


2739
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


2740
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


2741
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


2742
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


2743
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


2744
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


2745
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


2746
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


2747
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


2748
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal




















Zn metal
Later-
of all
grain







Invention
Number
grains/
added Zn
metal
content

Coat

Corrosion



Example
of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2729
6
1
2.1
4.129
50
Alkali
2
Spray
G









silicate



2730
7
1
34.5
0.220
87
Alkyl
37
Spray
E









silicate



2731
6
1
270
0.109
83
Alkali
12
Spray
E









silicate



2732
7
1
32.5
0.254
48
Alkyl
160
Brush
E









silicate



2733
6
1
3
6.375
51
Alkali
5
Brush
G









silicate



2734
2
1
1.5
0.028
51
Alkyl
56
Brush
E









silicate



2735
7
1
7.5
1.271
87
Alkali
2
Spray
G









silicate



2736
6
1
13.5
0.772
85
Alkyl
18
Spray
E









silicate



2737
6
1
5
4.083
86
Alkyl
23
Spray
E









silicate



2738
6
1
5
2.900
50
Epoxy resin
30
Brush
E



2739
2
1
1
0.650
51
Acrylic resin
77
Brush
E



2740
6
1
120
0.161
51
Urethane
655
Brush
E









resin



2741
7
1
3.7
2.298
80
Polyester
47
Spray
E









resin



2742
2
1
6.1
1.676
46
Epoxy resin
43
Spray
E



2743
6
1
198.5
0.048
51
Acrylic resin
52
Brush
E



2744
2
1
2.5
3.000
86
Urethane
20
Brush
E









resin



2745
6
1
18.5
0.774
85
Polyester
200
Brush
E









resin



2746
7
1
8
1.867
82
Alkali
22
Spray
E









silicate



2747
7
1
1.6
4.077
81
Alkyl
25
Spray
E









silicate



2748
2
1
1.2
6.045
46
Alkali
14
Spray
E









silicate

























TABLE 139










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Average
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2749
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


2750
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


2751
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


2752
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


2753
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2754
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


2755
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


2756
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2757
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


2758
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


2759
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


2760
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


2761
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


2762
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


2763
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


2764
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


2765
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


2766
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


2767
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


2768
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal




















Zn metal
Later-
of all
grain







Invention
Number
grains/
added Zn
metal
content

Coat

Corrosion



Example
of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2749
2
1
0.5
0.933
47
Urethane
112
Spray
E









resin



2750
6
1
9
2.350
48
Alkali
24
Spray
E









silicate



2751
7
1
4.5
1.618
51
Urethane
150
Spray
E









resin



2752
6
1
136
0.109
53
Alkali
18
Spray
E









silicate



2753
7
1
13
1.314
88
Alkyl
19
Brush
E









silicate



2754
6
1
10.6
0.181
85
Alkyl
24
Spray
E









silicate



2755
2
1
1.6
2.000
83
Urethane
99
Spray
E









resin



2756
2
1
68
0.223
82
Alkyl
7
Spray
E









silicate



2757
6
1
4.5
1.945
83
Epoxy resin
100
Spray
E



2758
7
1
10.5
1.452
47
Alkyl
27
Brush
E









silicate



2759
6
1
4.9
3.322
51
Alkali
15
Spray
E









silicate



2760
6
1
10.5
1.261
52
Alkyl
14
Spray
E









silicate



2761
2
1
192
0.074
51
Urethane
55
Spray
E









resin



2762
7
1
0.07
11.869
52
Alkyl
8
Spray
E









silicate



2763
2
1
9.5
1.000
89
Urethane
122
Brush
E









resin



2764
2
1
2.6
3.278
85
Alkyl
54
Spray
E









silicate



2765
6
1
4.5
2.327
82
Alkali
19
Spray
E









silicate



2766
7
1
3
1.550
87
Alkyl
25
Brush
E









silicate



2767
7
1
7.5
1.906
88
Alkyl
58
Spray
E









silicate



2768
6
1
77
0.251
49
Alkyl
21
Spray
E









silicate

























TABLE 140










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Average
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2769
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


2770
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


2771
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


2772
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


2773
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


2774
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


2775
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


2776
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


2777
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


2778
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


2779
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


2780
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


2781
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


2782
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


2783
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


2784
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


2785
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


2786
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


2787
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


2788
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal




















Zn metal
Later-
of all
grain







Invention
Number
grains/
added Zn
metal
content

Coat

Corrosion



Example
of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2769
7
1
10.5
1.078
50
Alkali
19
Brush
E









silicate



2770
7
1
15.5
0.648
51
Urethane
56
Spray
E









resin



2771
6
1
5.8
1.250
52
Alkyl
77
Spray
E









silicate



2772
7
1
1.9
1.759
53
Alkyl
12
Spray
E









silicate



2773
2
1
16.9
1.369
88
Alkyl
64
Spray
E









silicate



2774
7
1
1.5
5.400
85
Alkyl
34
Brush
E









silicate



2775
7
1
0.05
19.048
83
Alkali
28
Spray
E









silicate



2776
2
1
215
0.072
81
Urethane
109
Brush
E









resin



2777
6
1
4.2
2.019
80
Alkyl
15
Spray
E









silicate



2778
6
1
1.5
3.160
47
Alkyl
14
Spray
E









silicate



2779
7
1
4.8
0.828
49
Alkyl
18
Spray
E









silicate



2780
7
1
0.5
12.267
50
Urethane
122
Brush
E









resin



2781
6
1
2.3
3.848
51
Alkyl
54
Spray
E









silicate



2782
7
1
0.05
9.810
52
Alkali
19
Spray
E









silicate



2783
2
1
120
0.172
83
Alkyl
25
Brush
E









silicate



2784
2
1
3.7
0.532
88
Alkyl
58
Spray
E









silicate



2785
6
1
16.5
0.869
85
Alkyl
21
Spray
E









silicate



2786
7
1
24
0.768
83
Alkali
19
Brush
E









silicate



2787
6
1
0.01
13.366
82
Urethane
56
Spray
E









resin



2788
2
1
7.8
1.352
47
Alkyl
77
Spray
E









silicate

























TABLE 141










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Average
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2789
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


2790
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2791
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


2792
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


2793
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


2794
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


2795
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


2796
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


2797
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


2798
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


2799
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


2800
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


2801
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


2802
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


2803
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


2804
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


2805
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


2806
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


2807
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


2808
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal




















Zn metal
Later-
of all
grain







Invention
Number
grains/
added Zn
metal
content

Coat

Corrosion



Example
of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2789
2
1
1.6
4.077
46
Alkyl
54
Spray
E









silicate



2790
7
1
3.2
3.667
49
Alkali
2
Spray
G









silicate



2791
6
1
5.4
0.406
50
Alkali
20
Spray
E









silicate



2792
7
1
220
0.076
51
Alkali
5
Spray
G









silicate



2793
7
1
2.2
2.531
83
Alkyl
20
Spray
E









silicate



2794
6
1
2.8
3.605
82
Alkali
15
Brush
E









silicate



2795
2
1
12
1.423
88
Alkyl
57
Brush
E









silicate



2796
7
1
10.6
0.207
85
Alkali
13
Brush
E









silicate



2797
2
1
35
0.303
86
Alkyl
22
Brush
E









silicate



2798
2
1
125.5
0.057
47
Alkali
20
Spray
E









silicate



2799
7
1
6
2.500
48
Alkyl
27
Spray
E









silicate



2800
2
1
34
0.417
50
Alkali
15
Spray
E









silicate



2801
7
1
1.6
3.615
51
Alkyl
35
Spray
E









silicate



2802
2
1
7.5
0.835
52
Alkali
34
Brush
E









silicate



2803
6
1
200
0.112
88
Alkyl
45
Brush
E









silicate



2804
6
1
7.5
1.612
89
Alkali
52
Brush
E









silicate



2805
7
1
3.2
3.071
86
Alkyl
23
Brush
E









silicate



2806
6
1
2.6
1.194
87
Alkali
5
Spray
E









silicate



2807
2
1
3
4.400
86
Alkyl
52
Brush
E









silicate



2808
2
1
15.2
0.037
46
Alkali
150
Brush
E









silicate

























TABLE 142










Percent









Diameter
of fine-




distribution
grain



Mg solid




(peak
metal



solution




Average
diameter) of
grains
Chemical component


phase and
Any of



diameter
Zn metal
among Zn
content of
Alloy

Zn—Mg
MgZn2,



of later-
grains/Zn
metal
Zn metal
grain

intermetallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces
Average
present on
MgZn,
















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
aspect
grain
Mg7Zn3



















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
ratio
surfaces?
present?





2809
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


2810
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


2811
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


2812
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


2813
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


2814
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


2815
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


2816
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


2817
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


2818
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


2819
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


2820
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


2821
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


2822
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


2823
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


2824
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


2825
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


2826
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


2827
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


2828
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-



added

Coating details












Zn metal
Mg
Total




grains)
content
metal




















Zn metal
Later-
of all
grain







Invention
Number
grains/
added Zn
metal
content

Coat

Corrosion



Example
of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Test 



No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Results







2809
2
1
0.09
9.450
49
Alkyl
60
Brush
E









silicate



2810
2
1
13.5
0.483
35
Alkali
15
Spray
E









silicate



2811
2
1
135.4
0.172
37
Alkyl
24
Spray
E









silicate



2812
2
1
3
4.375
36
Alkali
34
Spray
E









silicate



2813
6
1
7.8
1.409
38
Alkyl
20
Brush
E









silicate



2814
6
1
10.2
1.330
48
Alkali
200
Brush
E









silicate



2815
7
1
7
2.588
46
Alkyl
56
Brush
E









silicate



2816
6
1
225.2
0.038
51
Alkali
34
Spray
E









silicate



2817
2
1
5.4
2.219
46
Alkyl
2
Spray
G









silicate



2818
7
1
3.2
0.019
38
Alkali
15
Spray
E









silicate



2819
2
1
13.5
1.048
48
Alkali
10
Spray
E









silicate



2820
6
1
1.6
6.692
52
Alkyl
125
Brush
E









silicate



2821
6
1
1.5
0.320
30
Alkali
24
Brush
E









silicate



2822
2
1
2.5
1.829
76
Alkyl
110
Brush
E









silicate



2823
2
1
2.6
0.889
72
Alkali
24
Brush
E









silicate



2824
7
1
126
0.072
81
Alkyl
2
Spray
G









silicate



2825
6
1
120
0.159
64
Alkali
37
Spray
E









silicate



2826
7
1
7.5
1.776
69
Alkyl
113
Brush
E









silicate



2827
2
1
6.5
1.933
83
Alkali
2
Spray
G









silicate



2828
7
1
20
0.500
30
Alkyl
75
Brush
E









silicate


























TABLE 143











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2829
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


2830
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


2831
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


2832
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


2833
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


2834
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


2835
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


2836
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


2837
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


2838
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


2839
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


2840
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


2841
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


2842
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


2843
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


2844
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


2845
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


2846
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


2847
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


2848
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2829
6
1
0.007
7.448
83
Alkali
30
Brush
E









silicate



2830
7
1
9
0.610
75
Alkyl
34
Brush
E









silicate



2831
6
1
7.5
1.976
76
Epoxy resin
124
Brush
E



2832
7
1
50
0.539
72
Acrylic resin
15
Spray
E



2833
6
1
0.005
2.886
71
Urethane
23
Spray
E









resin



2834
2
1
25.6
0.169
82
Polyester
157
Brush
E









resin



2835
7
1
56.5
0.001
81
Epoxy resin
26
Spray
E



2836
6
1
1.6
1.192
83
Acrylic resin
38
Spray
E



2837
6
1
3
5.125
50
Urethane
160
Brush
E









resin



2838
6
1
100
0.292
72
Polyester
27
Brush
E









resin



2839
2
1
65.5
0.114
47
Epoxy resin
180
Brush
E



2840
6
1
1.9
0.241
47
Acrylic resin
26
Spray
E



2841
7
1
2.1
1.484
52
Urethane
180
Brush
E









resin



2842
2
1
10.5
0.722
52
Polyester
15
Spray
E









resin



2843
6
1
6.5
1.573
50
Epoxy resin
2
Spray
G



2844
2
1
19.5
0.629
46
Acrylic resin
28
Spray
E



2845
6
1
0.8
0.333
47
Urethane
30
Spray
E









resin



2846
7
1
18.5
0.487
83
Polyester
2
Spray
G









resin



2847
7
1
4.3
2.208
52
Epoxy resin
157
Brush
E



2848
2
1
3.2
2.238
89
Acrylic resin
28
Brush
E


























TABLE 144











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2849
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


2850
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


2851
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


2852
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


2853
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


2854
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


2855
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


2856
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


2857
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


2858
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


2859
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


2860
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


2861
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


2862
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


2863
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


2864
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


2865
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


2866
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


2867
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


2868
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2849
2
1
1.5
4.680
85
Alkyl
130
Brush
E









silicate



2850
6
1
4.5
0.764
53
Alkyl
29
Brush
E









silicate



2851
7
1
15.5
0.170
88
Epoxy resin
30
Brush
E



2852
6
1
10.5
1.209
85
Acrylic resin
120
Brush
E



2853
7
1
2.5
4.171
52
Urethane
187
Brush
E









resin



2854
6
1
9
2.640
83
Polyester
28
Spray
E









resin



2855
2
1
10.5
0.156
88
Epoxy resin
5
Spray
E



2856
2
1
5.7
2.910
49
Acrylic resin
35
Spray
E



2857
6
1
3.9
0.327
50
Urethane
5
Spray
G









resin



2858
7
1
4.5
1.091
51
Polyester
200
Brush
E









resin



2859
6
1
3.6
1.826
83
Alkali
25
Spray
E









silicate



2860
6
1
16.4
0.764
82
Alkali
15
Spray
E









silicate



2861
2
1
6
2.657
88
Alkyl
20
Spray
E









silicate



2862
7
1
7.5
0.212
85
Alkali
18
Spray
E









silicate



2863
2
1
10.5
0.357
87
Alkyl
22
Spray
E









silicate



2864
2
1
2.6
4.639
86
Alkali
19
Spray
E









silicate



2865
6
1
1.5
0.160
46
Alkyl
29
Spray
E









silicate



2866
7
1
13.5
0.731
49
Alkali
23
Spray
E









silicate



2867
7
1
2.6
1.917
35
Alkyl
21
Spray
E









silicate



2868
6
1
6.5
0.007
30
Alkali
19
Spray
E









silicate


























TABLE 145











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2869
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes


2870
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes


2871
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes


2872
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes


2873
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes


2874
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes


2875
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes


2876
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes


2877
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes


2878
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes


2879
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2880
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2881
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes


2882
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2883
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes


2884
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes


2885
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes


2886
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes


2887
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes


2888
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes


2889
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2869
7
1
1.6
2.462
76
Alkyl silicate
15
Spray
E



2870
7
1
3.8
0.729
72
Alkali
18
Spray
E









silicate



2871
6
1
0.08
16.204
30
Alkyl
22
Spray
E









silicate



2872
7
1
164.5
0.022
83
Alkyl
21
Spray
E









silicate



2873
2
1
3.6
1.283
75
Alkyl
29
Spray
E









silicate



2874
7
1
8.6
1.688
76
Alkali
23
Spray
E









silicate



2875
7
1
12
1.731
72
Alkyl
21
Spray
E









silicate



2876
2
1
5.8
0.500
83
Alkali
19
Spray
E









silicate



2877
6
1
10
2.409
50
Alkyl
21
Spray
E









silicate



2878
6
1
1
12.750
72
Alkali
19
Spray
E









silicate



2879
7
1
10.5
1.113
50
Acrylic resin
654
Spray
E



2880
6
1
6.5
1.133
48
Alkali
700
Spray
E









silicate



2881
7
1
19.5
1.195
75
Alkyl
555
Spray
E









silicate



2882
7
1
0.8
10.222
55
Alkyl
12
Spray
E









silicate



2883
6
1
5.3
0.013
38
Alkyl
678
Brush
E









silicate



2884
7
1
4.3
2.868
48
Urethane
674
Spray
E









resin



2885
2
1
3.2
1.524
76
Polyester
325
Spray
E









resin



2886
7
1
1.5
1.280
72
Alkyl
665
Spray
E









silicate



2887
7
1
4.5
1.109
75
Alkyl
354
Brush
E









silicate



2888
2
1
0.8
9.333
76
Alkyl
165
Spray
E









silicate



2889
6
1
6.5
3.667
72
Urethane
354
Spray
E









resin


























TABLE 146











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2890
16.5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


2891
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


2892
0.96
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes
Yes


2893
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


2894
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


2895
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


2896
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


2897
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


2898
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


2899
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


2900
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


2901
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


2902
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


2903
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


2904
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


2905
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


2906
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


2907
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


2908
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


2909
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2890
2
1
5
1.867
49
Alkyl
14
Spray
E









silicate



2891
2
1
198.7
0.047
89
Urethane
55
Spray
E









resin



2892
2
1
36
0.500
90
Alkyl
8
Spray
E









silicate



2893
2
1
1.5
0.012
86
Urethane
122
Brush
E









resin



2894
6
1
0.008
1.587
48
Alkyl
555
Spray
E









silicate



2895
6
1
1.4
2.833
47
Alkali
19
Spray
E









silicate



2896
7
1
4.2
2.673
47
Alkyl
25
Brush
E









silicate



2897
6
1
1.6
0.731
47
Alkyl
58
Spray
E









silicate



2898
2
1
7.5
0.671
52
Alkyl
685
Spray
E









silicate



2899
7
1
1.6
3.538
52
Alkali
19
Brush
E









silicate



2900
2
1
2
5.133
52
Urethane
700
Spray
E









resin



2901
6
1
270
0.069
88
Alkyl
77
Spray
E









silicate



2902
6
1
7.5
0.424
87
Alkyl
54
Spray
E









silicate



2903
2
1
2.9
1.385
89
Alkyl
64
Spray
E









silicate



2904
2
1
2.6
2.111
90
Alkyl
34
Brush
E









silicate



2905
7
1
0.1
22.273
91
Alkali
28
Spray
E









silicate



2906
6
1
1.2
8.000
46
Urethane
109
Brush
E









resin



2907
7
1
1.2
0.636
47
Alkyl
15
Spray
E









silicate



2908
2
1
62
0.341
47
Alkyl
14
Spray
E









silicate



2909
7
1
2.4
3.059
49
Alkyl
18
Spray
E









silicate


























TABLE 147











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2910
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


2911
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


2912
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


2913
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


2914
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


2915
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


2916
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


2917
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


2918
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


2919
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


2920
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


2921
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


2922
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


2923
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


2924
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


2925
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


2926
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


2927
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


2928
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


2929
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2910
6
1
2.1
4.129
50
Alkali
2
Spray
G









silicate



2911
7
1
34.5
0.220
87
Alkyl
37
Spray
E









silicate



2912
6
1
270
0.109
83
Alkali
12
Spray
E









silicate



2913
7
1
32.5
0.254
48
Alkyl
160
Brush
E









silicate



2914
6
1
3
6.375
51
Alkali
5
Brush
G









silicate



2915
2
1
1.5
0.028
51
Alkyl
56
Brush
E









silicate



2916
7
1
7.5
1.271
87
Alkali
2
Spray
G









silicate



2917
6
1
13.5
0.772
85
Alkyl
18
Spray
E









silicate



2918
6
1
5
4.083
86
Alkyl
23
Spray
E









silicate



2919
6
1
5
2.900
50
Epoxy resin
30
Brush
E



2920
2
1
1
0.650
51
Acrylic resin
77
Brush
E



2921
6
1
120
0.161
51
Urethane
655
Brush
E









resin



2922
7
1
3.7
2.298
80
Polyester
47
Spray
E









resin



2923
2
1
6.1
1.676
46
Epoxy resin
43
Spray
E



2924
6
1
198.5
0.048
51
Acrylic resin
52
Brush
E



2925
2
1
2.5
3.000
86
Urethane
20
Brush
E









resin



2926
6
1
18.5
0.774
85
Polyester
200
Brush
E









resin



2927
7
1
8
1.867
82
Alkali
22
Spray
E









silicate



2928
7
1
1.6
4.077
81
Alkyl
25
Spray
E









silicate



2929
2
1
1.2
6.045
46
Alkali
14
Spray
E









silicate


























TABLE 148











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2930
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


2931
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


2932
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


2933
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


2934
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


2935
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


2936
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


2937
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2938
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


2939
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


2940
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


2941
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


2942
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


2943
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


2944
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


2945
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


2946
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


2947
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


2948
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


2949
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2930
2
1
0.5
0.933
47
Urethane
112
Spray
E









resin



2931
6
1
9
2.350
48
Alkali
24
Spray
E









silicate



2932
7
1
4.5
1.618
51
Urethane
150
Spray
E









resin



2933
6
1
136
0.109
53
Alkali
18
Spray
E









silicate



2934
7
1
13
1.314
88
Alkyl
19
Brush
E









silicate



2935
6
1
10.6
0.181
85
Alkyl
24
Spray
E









silicate



2936
2
1
1.6
2.000
83
Urethane
99
Spray
E









resin



2937
2
1
68
0.223
82
Alkyl
7
Spray
E









silicate



2938
6
1
4.5
1.945
83
Epoxy resin
100
Spray
E



2939
7
1
10.5
1.452
47
Alkyl
27
Brush
E









silicate



2940
6
1
4.9
3.322
51
Alkali
15
Spray
E









silicate



2941
6
1
10.5
1.261
52
Alkyl
14
Spray
E









silicate



2942
2
1
192
0.074
51
Urethane
55
Spray
E









resin



2943
7
1
0.07
11.869
52
Alkyl
8
Spray
E









silicate



2944
2
1
9.5
1.000
89
Urethane
122
Brush
E









resin



2945
2
1
2.6
3.278
85
Alkyl
54
Spray
E









silicate



2946
6
1
4.5
2.327
82
Alkali
19
Spray
E









silicate



2947
7
1
3
1.550
87
Alkyl
25
Brush
E









silicate



2948
7
1
7.5
1.906
88
Alkyl
58
Spray
E









silicate



2949
6
1
77
0.251
49
Alkyl
21
Spray
E









silicate


























TABLE 149











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2950
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes


2951
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes


2952
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes


2953
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes


2954
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes


2955
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes


2956
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes


2957
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes


2958
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes


2959
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes


2960
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes


2961
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes


2962
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes


2963
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes


2964
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes


2965
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes


2966
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes


2967
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes


2968
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes


2969
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2950
7
1
10.5
1.078
50
Alkali
19
Brush
E









silicate



2951
7
1
15.5
0.648
51
Urethane
56
Spray
E









resin



2952
6
1
5.8
1.250
52
Alkyl silicate
77
Spray
E



2953
7
1
1.9
1.759
53
Alkyl
12
Spray
E









silicate



2954
2
1
16.9
1.369
88
Alkyl
64
Spray
E









silicate



2955
7
1
1.5
5.400
85
Alkyl
34
Brush
E









silicate



2956
7
1
0.05
19.048
83
Alkali
28
Spray
E









silicate



2957
2
1
215
0.072
81
Urethane
109
Brush
E









resin



2958
6
1
4.2
2.019
80
Alkyl
15
Spray
E









silicate



2959
6
1
1.5
3.160
47
Alkyl
14
Spray
E









silicate



2960
7
1
4.8
0.828
49
Alkyl
18
Spray
E









silicate



2961
7
1
0.5
12.267
50
Urethane
122
Brush
E









resin



2962
6
1
2.3
3.848
51
Alkyl
54
Spray
E









silicate



2963
7
1
0.05
9.810
52
Alkali
19
Spray
E









silicate



2964
2
1
120
0.172
83
Alkyl
25
Brush
E









silicate



2965
2
1
3.7
0.532
88
Alkyl
58
Spray
E









silicate



2966
6
1
16.5
0.869
85
Alkyl
21
Spray
E









silicate



2967
7
1
24
0.768
83
Alkali
19
Brush
E









silicate



2968
6
1
0.01
13.366
82
Urethane
56
Spray
E









resin



2969
2
1
7.8
1.352
47
Alkyl
77
Spray
E









silicate


























TABLE 150











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2970
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes


2971
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes


2972
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes


2973
9.64
2.49
9.54
53.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes


2974
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes


2975
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes


2976
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes


2977
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes


2978
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes


2979
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes


2980
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes


2981
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes


2982
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes


2983
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes


2984
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes


2985
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes


2986
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes


2987
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes


2988
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes


2989
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2970
2
1
1.6
4.077
46
Alkyl silicate
54
Spray
E



2971
7
1
3.2
3.667
49
Alkali
2
Spray
G









silicate



2972
6
1
5.4
0.406
50
Alkali
20
Spray
E









silicate



2973
7
1
220
0.076
51
Alkali
5
Spray
G









silicate



2974
7
1
2.2
2.531
83
Alkyl
20
Spray
E









silicate



2975
6
1
2.8
3.605
82
Alkali
15
Brush
E









silicate



2976
2
1
12
1.423
88
Alkyl
57
Brush
E









silicate



2977
7
1
10.6
0.207
85
Alkali
13
Brush
E









silicate



2978
2
1
35
0.303
86
Alkyl
22
Brush
E









silicate



2979
2
1
125.5
0.057
47
Alkali
20
Spray
E









silicate



2980
7
1
6
2.500
48
Alkyl
27
Spray
E









silicate



2981
2
1
34
0.417
50
Alkali
15
Spray
E









silicate



2982
7
1
1.6
3.615
51
Alkyl
35
Spray
E









silicate



2983
2
1
7.5
0.835
52
Alkali
34
Brush
E









silicate



2984
6
1
200
0.112
88
Alkyl
45
Brush
E









silicate



2985
6
1
7.5
1.612
89
Alkali
52
Brush
E









silicate



2986
7
1
3.2
3.071
86
Alkyl
23
Brush
E









silicate



2987
6
1
2.6
1.194
87
Alkali
5
Spray
E









silicate



2988
2
1
3
4.400
86
Alkyl
52
Brush
E









silicate



2989
2
1
15.2
0.037
46
Alkali
150
Brush
E









silicate


























TABLE 151











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





2990
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes


2991
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes


2992
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes


2993
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes


2994
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes


2995
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes


2996
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes


2997
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes


2998
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes


2999
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes


3000
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes


3001
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes


3002
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes


3003
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes


3004
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes


3005
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes


3006
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes


3007
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes


3008
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes


3009
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







2990
2
1
0.09
9.450
49
Alkyl silicate
60
Brush
E



2991
2
1
13.5
0.483
35
Alkyl
15
Spray
E









silicate



2992
2
1
135.4
0.172
37
Alkyl
24
Spray
E









silicate



2993
2
1
3
4.375
36
Alkali
34
Spray
E









silicate



2994
6
1
7.8
1.409
38
Alkyl
20
Brush
E









silicate



2995
6
1
10.2
1.330
48
Alkali
200
Brush
E









silicate



2996
7
1
7
2.588
46
Alkyl
56
Brush
E









silicate



2997
6
1
225.2
0.038
51
Alkali
34
Spray
E









silicate



2998
2
1
5.4
2.219
46
Alkyl
2
Spray
G









silicate



2999
7
1
3.2
0.019
38
Alkali
15
Spray
E









silicate



3000
2
1
13.5
1.048
48
Alkali
10
Spray
E









silicate



3001
6
1
1.6
6.692
52
Alkyl
125
Brush
E









silicate



3002
6
1
1.5
0.320
30
Alkali
24
Brush
E









silicate



3003
2
1
2.5
1.829
76
Alkyl
110
Brush
E









silicate



3004
2
1
2.6
0.889
72
Alkali
24
Brush
E









silicate



3005
7
1
126
0.072
81
Alkyl
2
Spray
G









silicate



3006
6
1
120
0.159
64
Alkali
37
Spray
E









silicate



3007
7
1
7.5
1.776
69
Alkyl
113
Brush
E









silicate



3008
2
1
6.5
1.933
83
Alkali
2
Spray
G









silicate



3009
7
1
20
0.500
30
Alkyl
75
Brush
E









silicate


























TABLE 152











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





3010
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes


3011
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes


3012
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes


3013
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes


3014
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes


3015
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes


3016
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes


3017
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes


3018
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes


3019
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes


3020
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes


3021
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes


3022
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes


3023
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes


3024
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes


3025
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes


3026
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes


3027
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes


3028
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes


3029
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







3010
6
1
0.007
7.448
83
Alkali
30
Brush
E









silicate



3011
7
1
9
0.610
75
Alkyl
34
Brush
E









silicate



3012
6
1
7.5
1.976
76
Epoxy resin
124
Brush
E



3013
7
1
50
0.539
72
Acrylic resin
15
Spray
E



3014
6
1
0.005
2.886
71
Urethane
23
Spray
E









resin



3015
2
1
25.6
0.169
82
Polyester
157
Brush
E









resin



3016
7
1
56.5
0.001
81
Epoxy resin
26
Spray
E



3017
6
1
1.6
1.192
83
Acrylic resin
38
Spray
E



3018
6
1
3
5.125
50
Urethane
160
Brush
E









resin



3019
6
1
100
0.292
72
Urethane
27
Brush
E









resin



3020
2
1
65.5
0.114
47
Epoxy resin
180
Brush
E



3021
6
1
1.9
0.241
47
Acrylic resin
26
Spray
E



3022
7
1
2.1
1.484
52
Urethane
180
Brush
E









resin



3023
2
1
10.5
0.722
52
Urethane
15
Spray
E









resin



3024
6
1
6.5
1.573
50
Epoxy resin
2
Spray
G



3025
2
1
19.5
0.629
46
Acrylic resin
28
Spray
E



3026
6
1
0.8
0.333
47
Urethane
30
Spray
E









resin



3027
7
1
18.5
0.487
83
Urethane
2
Spray
G









resin



3028
7
1
4.3
2.208
52
Epoxy resin
157
Brush
E



3029
2
1
3.2
2.238
89
Acrylic resin
28
Brush
E


























TABLE 153











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





3030
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes


3031
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes


3032
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes


3033
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes


3034
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes


3035
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes


3036
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes


3037
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes


3038
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes


3039
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes


3040
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes


3041
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes


3042
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes


3043
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes


3044
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes


3045
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes


3046
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes


3047
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes


3048
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes


3049
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







3030
2
1
1.5
4.680
85
Alkyl
130
Brush
E









silicate



3031
6
1
4.5
0.764
53
Alkyl
29
Brush
E









silicate



3032
7
1
15.5
0.170
88
Epoxy resin
30
Brush
E



3033
6
1
10.5
1.209
85
Acrylic resin
120
Brush
E



3034
7
1
2.5
4.171
52
Urethane
187
Brush
E









resin



3035
6
1
9
2.640
83
Polyester
28
Spray
E









resin



3036
2
1
10.5
0.156
88
Epoxy resin
5
Spray
E



3037
2
1
5.7
2.910
49
Acrylic resin
35
Spray
E



3038
6
1
3.9
0.327
50
Urethane
5
Spray
G









resin



3039
7
1
4.5
1.091
51
Polyester
200
Brush
E









resin



3040
6
1
3.6
1.826
83
Alkali
25
Spray
E









silicate



3041
6
1
16.4
0.764
82
Alkali
15
Spray
E









silicate



3042
2
1
6
2.657
88
Alkyl
20
Spray
E









silicate



3043
7
1
7.5
0.212
85
Alkali
18
Spray
E









silicate



3044
2
1
10.5
0.357
87
Alkyl
22
Spray
E









silicate



3045
2
1
2.6
4.639
86
Alkali
19
Spray
E









silicate



3046
6
1
1.5
0.160
46
Alkyl
29
Spray
E









silicate



3047
7
1
13.5
0.731
49
Alkali
23
Spray
E









silicate



3048
7
1
2.6
1.917
35
Alkyl
21
Spray
E









silicate



3049
6
1
6.5
0.007
30
Alkali
19
Spray
E









silicate


























TABLE 154











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





3050
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes


3051
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes


3052
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes


3053
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes


3054
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes


3055
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes


3056
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes


3057
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes


3058
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes


3059
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes


3060
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


3061
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes


3062
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes


3063
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


3064
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes


3065
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes


3066
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes


3067
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes


3068
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes


3069
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes


3070
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes















Ratio of (Zn






metal grains or



Zn alloy



grains):(Later-

Coating details















added
Mg
Total







Zn metal grains)
content
metal




















Zn metal
Later-
of all
grain









grains/
added Zn
metal
content

Coat



Invention
Number of
Zn alloy
metal
grains
of coat
Base resin
thickness
Coating
Corrosion



Example No
faces
grains
grains
(Mass %)
(Mass %)
type
(μm)
method
Test Results







3050
7
1
1.6
2.462
76
Alkyl
15
Spray
E









silicate



3051
7
1
3.8
0.729
72
Alkali
18
Spray
E









silicate



3052
6
1
0.08
16.204
30
Alkyl
22
Spray
E









silicate



3053
7
1
164.5
0.022
83
Alkyl
21
Spray
E









silicate



3054
2
1
3.6
1.283
75
Alkyl
29
Spray
E









silicate



3055
7
1
8.6
1.688
76
Alkali
23
Spray
E









silicate



3056
7
1
12
1.731
72
Alkyl
21
Spray
E









silicate



3057
2
1
5.8
0.500
83
Alkali
19
Spray
E









silicate



3058
6
1
10
2.409
50
Alkyl
21
Spray
E









silicate



3059
6
1
1
12.750
72
Alkali
19
Spray
E









silicate



3060
6
1
10.5
1.113
50
Acrylic resin
654
Spray
E



3061
7
1
6.5
1.133
48
Alkali
700
Spray
E









silicate



3062
7
1
19.5
1.195
75
Alkyl
555
Spray
E









silicate



3063
6
1
0.8
10.222
55
Alkyl
12
Spray
E









silicate



3064
7
1
5.3
0.013
38
Alkyl
678
Brush
E









silicate



3065
2
1
4.3
2.868
48
Urethane
674
Spray
E









resin



3066
7
1
3.2
1.524
76
Polyester
325
Spray
E









resin



3067
7
1
1.5
1.280
72
Alkyl
665
Spray
E









silicate



3068
2
1
4.5
1.109
75
Alkyl
354
Brush
E









silicate



3069
6
1
0.8
9.333
76
Alkyl
165
Spray
E









silicate



3070
6
1
6.5
3.667
72
Urethane
354
Spray
E









resin


























TABLE 155











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





3071
16.5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes


3072
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes


3073
0.96
2.56
9.84
6.55
81.45
18.5
0
0.5
Yes
1.22
Yes
Yes


3074
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes


3075
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes


3076
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes


3077
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes


3078
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes


3079
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes


3080
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes


3081
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes


3082
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes


3083
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes


3084
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes


3085
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes


3086
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes


3087
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes


3088
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes


3089
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes


3090
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes















Ratio of (Zn metal

Coating details

















grains or Zn alloy

Ratio of fine








grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain


Invention

grains/
Zn
metal
to total fine
content
Base
Coat


Example
Number of
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion


No
faces
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results





3071
2
1
5
1.867
55.7
49
Alkyl
14
Spray
E









silicate


3072
2
1
198.7
0.047
64.5
89
Urethane
55
Spray
E









resin


3073
2
1
36
0.500
68.9
90
Alkyl
8
Spray
E









silicate


3074
2
1
1.5
0.012
64.7
86
Urethane
122
Brush
E









resin


3075
6
1
0.008
1.587
77.9
48
Alkyl
555
Spray
E









silicate


3076
6
1
1.4
2.833
43.7
47
Alkali
19
Spray
E









silicate


3077
7
1
4.2
2.673
7.8
47
Alkyl
25
Brush
E









silicate


3078
6
1
1.6
0.731
16.0
47
Alkyl
58
Spray
E









silicate


3079
2
1
7.5
0.671
89.6
52
Alkyl
685
Spray
E









silicate


3080
7
1
1.6
3.538
11.8
52
Alkali
19
Brush
E









silicate


3081
2
1
2
5.133
4.6
52
Urethane
700
Spray
E









resin


3082
6
1
270
0.069
2.5
88
Alkyl
77
Spray
E









silicate


3083
6
1
7.5
0.424
18.9
87
Alkyl
54
Spray
E









silicate


3084
2
1
2.9
1.385
75.9
89
Alkyl
64
Spray
E









silicate


3085
2
1
2.6
2.111
55.9
90
Alkyl
34
Brush
E









silicate


3086
7
1
0.1
22.273
53.8
91
Alkali
28
Spray
E









silicate


3087
6
1
1.2
8.000
97.5
46
Urethane
109
Brush
E









resin


3088
7
1
1.2
0.636
88.4
47
Alkyl
15
Spray
E









silicate


3089
2
1
62
0.341
54.8
47
Alkyl
14
Spray
E









silicate


3090
7
1
2.4
3.059
45.7
49
Alkyl
18
Spray
E









silicate

























TABLE 156











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





3091
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes


3092
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes


3093
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes


3094
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes


3095
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes


3096
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes


3097
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes


3098
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes


3099
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes


3100
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes


3101
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes


3102
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes


3103
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes


3104
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes


3105
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes


3106
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes


3107
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes


3108
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes


3109
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes


3110
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes















Ratio of (Zn metal

Coating details

















grains or Zn alloy

Ratio of fine








grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain


Invention

grains/
Zn
metal
to total fine
content
Base
Coat


Example
Number of
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion


No
faces
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results





3091
6
1
2.1
4.129
34.7
50
Alkali
2
Spray
G









silicate


3092
7
1
34.5
0.220
57.9
87
Alkyl
37
Spray
E









silicate


3093
6
1
270
0.109
65.4
83
Alkali
12
Spray
E









silicate


3094
7
1
32.5
0.254
87.9
48
Alkyl
160
Brush
E









silicate


3095
6
1
3
6.375
2.9
51
Alkali
5
Brush
G









silicate


3096
2
1
1.5
0.028
12.6
51
Alkyl
56
Brush
E









silicate


3097
7
1
7.5
1.271
53.8
87
Alkali
2
Spray
G









silicate


3098
6
1
13.5
0.772
17.8
85
Alkyl
18
Spray
E









silicate


3099
6
1
5
4.083
34.7
86
Alkyl
23
Spray
E









silicate


3100
6
1
5
2.900
76.8
50
Epoxy
30
Brush
E









resin


3101
2
1
1
0.650
58.9
51
Acrylic
77
Brush
E









resin


3102
6
1
120
0.161
50.8
51
Urethane
655
Brush
E









resin


3103
7
1
3.7
2.298
46.8
80
Polyester
47
Spray
E









resin


3104
2
1
6.1
1.676
23.7
46
Epoxy
43
Spray
E









resin


3105
6
1
198.5
0.048
53.8
51
Acrylic
52
Brush
E









resin


3106
2
1
2.5
3.000
53.8
86
Urethane
20
Brush
E









resin


3107
6
1
18.5
0.774
43.7
85
Polyester
200
Brush
E









resin


3108
7
1
8
1.867
55.9
82
Alkali
22
Spray
E









silicate


3109
7
1
1.6
4.077
65.8
81
Alkyl
25
Spray
E









silicate


3110
2
1
1.2
6.045
55.7
46
Alkali
14
Spray
E









silicate

























TABLE 157











Percent









Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and



Average
diameter) of
grains



Zn—Mg
Any of



diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,



metal
(μm)
Zn alloy
grains
surfaces

present
MgZn,
















Invention
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
on grain
Mg7Zn3



















Example No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?





3111
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes


3112
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes


3113
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes


3114
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes


3115
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes


3116
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes


3117
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes


3118
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes


3119
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes


3120
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes


3121
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes


3122
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes


3123
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes


3124
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes


3125
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes


3126
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes


3127
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes


3128
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes


3129
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes


3130
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes















Ratio of (Zn metal

Coating details

















grains or Zn alloy

Ratio of fine








grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain


Invention

grains/
Zn
metal
to total fine
content
Base
Coat


Example
Number of
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion


No
faces
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results





3111
2
1
0.5
0.933
64.5
47
Urethane
112
Spray
E









resin


3112
6
1
9
2.350
68.9
48
Alkali
24
Spray
E









silicate


3113
7
1
4.5
1.618
64.7
51
Urethane
150
Spray
E









resin


3114
6
1
136
0.109
77.9
53
Alkali
18
Spray
E









silicate


3115
7
1
13
1.314
43.7
88
Alkyl
19
Brush
E









silicate


3116
6
1
10.6
0.181
7.8
85
Alkyl
24
Spray
E









silicate


3117
2
1
1.6
2.000
16.0
83
Urethane
99
Spray
E









resin


3118
2
1
68
0.223
89.6
82
Alkyl
7
Spray
E









silicate


3119
6
1
4.5
1.945
11.8
83
Epoxy
100
Spray
E









resin


3120
7
1
10.5
1.452
4.6
47
Alkyl
27
Brush
E









silicate


3121
6
1
4.9
3.322
2.5
51
Alkali
15
Spray
E









silicate


3122
6
1
10.5
1.261
18.9
52
Alkyl
14
Spray
E









silicate


3123
2
1
192
0.074
75.9
51
Urethane
55
Spray
E









resin


3124
7
1
0.07
11.869
55.9
52
Alkyl
8
Spray
E









silicate


3125
2
1
9.5
1.000
53.8
89
Urethane
122
Brush
E









resin


3126
2
1
2.6
3.278
97.5
85
Alkyl
54
Spray
E









silicate


3127
6
1
4.5
2.327
88.4
82
Alkali
19
Spray
E









silicate


3128
7
1
3
1.550
54.8
87
Alkyl
25
Brush
E









silicate


3129
7
1
7.5
1.906
45.7
88
Alkyl
58
Spray
E









silicate


3130
6
1
77
0.251
34.7
49
Alkyl
21
Spray
E









silicate

























TABLE 158










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3131
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes
7


3132
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes
7


3133
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes
6


3134
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes
7


3135
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes
2


3136
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes
7


3137
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes
7


3138
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes
2


3139
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes
6


3140
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes
6


3141
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes
7


3142
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes
7


3143
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes
6


3144
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes
7


3145
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes
2


3146
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes
2


3147
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes
6


3148
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes
7


3149
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes
6


3150
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3131
1
10.5
1.078
57.9
50
Alkali
19
Brush
E









silicate



3132
1
15.5
0.648
65.4
51
Urethane
56
Spray
E









resin



3133
1
5.8
1.250
87.9
52
Alkyl
77
Spray
E









silicate



3134
1
1.9
1.759
2.9
53
Alkyl
12
Spray
E









silicate



3135
1
16.9
1.369
12.6
88
Alkyl
64
Spray
E









silicate



3136
1
1.5
5.400
53.8
85
Alkyl
34
Brush
E









silicate



3137
1
0.05
19.048
17.8
83
Alkali
28
Spray
E









silicate



3138
1
215
0.072
34.7
81
Urethane
109
Brush
E









resin



3139
1
4.2
2.019
55.7
80
Alkyl
15
Spray
E









silicate



3140
1
1.5
3.160
64.5
47
Alkyl
14
Spray
E









silicate



3141
1
4.8
0.828
68.9
49
Alkyl
18
Spray
E









silicate



3142
1
0.5
12.267
64.7
50
Urethane
122
Brush
E









resin



3143
1
2.3
3.848
77.9
51
Alkyl
54
Spray
E









silicate



3144
1
0.05
9.810
43.7
52
Alkali
19
Spray
E









silicate



3145
1
120
0.172
7.8
83
Alkyl
25
Brush
E









silicate



3146
1
3.7
0.532
16.0
88
Alkyl
58
Spray
E









silicate



3147
1
16.5
0.869
89.6
85
Alkyl
21
Spray
E









silicate



3148
1
24
0.768
11.8
83
Alkali
19
Brush
E









silicate



3149
1
0.01
13.366
4.6
82
Urethane
56
Spray
E









resin



3150
1
7.8
1.352
2.5
47
Alkyl
77
Spray
E









silicate


























TABLE 159










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3151
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes
2


3152
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes
7


3153
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes
6


3154
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes
7


3155
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes
7


3156
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes
6


3157
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes
2


3158
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes
7


3159
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes
2


3160
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes
2


3161
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes
7


3162
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes
2


3163
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes
7


3164
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes
2


3165
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes
6


3166
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes
6


3167
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes
7


3168
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes
6


3169
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes
2


3170
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3151
1
1.6
4.077
18.9
46
Alkyl
54
Spray
E









silicate



3152
1
3.2
3.667
75.9
49
Alkali
2
Spray
G









silicate



3153
1
5.4
0.406
55.9
50
Alkali
20
Spray
E









silicate



3154
1
220
0.076
53.8
51
Alkali
5
Spray
G









silicate



3155
1
2.2
2.531
97.5
83
Alkyl
20
Spray
E









silicate



3156
1
2.8
3.605
88.4
82
Alkali
15
Brush
E









silicate



3157
1
12
1.423
54.8
88
Alkyl
57
Brush
E









silicate



3158
1
10.6
0.207
45.7
85
Alkali
13
Brush
E









silicate



3159
1
35
0.303
34.7
86
Alkyl
22
Brush
E









silicate



3160
1
125.5
0.057
57.9
47
Alkali
20
Spray
E









silicate



3161
1
6
2.500
65.4
48
Alkyl
27
Spray
E









silicate



3162
1
34
0.417
87.9
50
Alkali
15
Spray
E









silicate



3163
1
1.6
3.615
2.9
51
Alkyl
35
Spray
E









silicate



3164
1
7.5
0.835
12.6
52
Alkali
34
Brush
E









silicate



3165
1
200
0.112
53.8
88
Alkyl
45
Brush
E









silicate



3166
1
7.5
1.612
17.8
89
Alkali
52
Brush
E









silicate



3167
1
3.2
3.071
34.7
86
Alkyl
23
Brush
E









silicate



3168
1
2.6
1.194
76.8
87
Alkali
5
Spray
E









silicate



3169
1
3
4.400
58.9
86
Alkyl
52
Brush
E









silicate



3170
1
15.2
0.037
50.8
46
Alkali
150
Brush
E









silicate


























TABLE 160










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3171
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes
2


3172
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes
2


3173
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes
2


3174
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes
2


3175
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes
6


3176
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes
6


3177
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes
7


3178
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes
6


3179
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes
2


3180
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes
7


3181
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes
2


3182
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes
6


3183
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes
6


3184
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes
2


3185
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes
2


3186
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes
7


3187
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes
6


3188
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes
7


3189
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes
2


3190
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes
7















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3171
1
0.09
9.450
46.8
49
Alkyl
60
Brush
E









silicate



3172
1
13.5
0.483
23.7
35
Alkali
15
Spray
E









silicate



3173
1
135.4
0.172
53.8
37
Alkyl
24
Spray
E









silicate



3174
1
3
4.375
53.8
36
Alkali
34
Spray
E









silicate



3175
1
7.8
1.409
43.7
38
Alkyl
20
Brush
E









silicate



3176
1
10.2
1.330
55.9
48
Alkali
200
Brush
E









silicate



3177
1
7
2.588
65.8
46
Alkyl
56
Brush
E









silicate



3178
1
225.2
0.038
55.7
51
Alkali
34
Spray
E









silicate



3179
1
5.4
2.219
64.5
46
Alkyl
2
Spray
G









silicate



3180
1
3.2
0.019
68.9
38
Alkali
15
Spray
E









silicate



3181
1
13.5
1.048
64.7
48
Alkali
10
Spray
E









silicate



3182
1
1.6
6.692
77.9
52
Alkyl
125
Brush
E









silicate



3183
1
1.5
0.320
43.7
30
Alkali
24
Brush
E









silicate



3184
1
2.5
1.829
7.8
76
Alkyl
110
Brush
E









silicate



3185
1
2.6
0.889
16.0
72
Alkali
24
Brush
E









silicate



3186
1
126
0.072
89.6
81
Alkyl
2
Spray
G









silicate



3187
1
120
0.159
11.8
64
Alkali
37
Spray
E









silicate



3188
1
7.5
1.776
4.6
69
Alkyl
113
Brush
E









silicate



3189
1
6.5
1.933
2.5
83
Alkali
2
Spray
G









silicate



3190
1
20
0.500
18.9
30
Alkyl
75
Brush
E









silicate


























TABLE 161










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3191
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes
6


3192
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes
7


3193
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes
6


3194
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes
7


3195
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes
6


3196
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes
2


3197
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes
7


3198
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes
6


3199
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes
6


3200
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes
6


3201
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes
2


3202
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes
6


3203
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes
7


3204
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes
2


3205
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes
6


3206
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes
2


3207
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes
6


3208
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes
7


3209
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes
7


3210
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3191
1
0.007
7.448
75.9
83
Alkali
30
Brush
E









silicate



3192
1
9
0.610
55.9
75
Alkyl
34
Brush
E









silicate



3193
1
7.5
1.976
53.8
76
Epoxy
124
Brush
E









resin



3194
1
50
0.539
97.5
72
Acrylic
15
Spray
E









resin



3195
1
0.005
2.886
88.4
71
Urethane
23
Spray
E









resin



3196
1
25.6
0.169
54.8
82
Polyester
157
Brush
E









resin



3197
1
56.5
0.001
45.7
81
Epoxy
26
Spray
E









resin



3198
1
1.6
1.192
34.7
83
Acrylic
38
Spray
E









resin



3199
1
3
5.125
57.9
50
Urethane
160
Brush
E









resin



3200
1
100
0.292
65.4
72
Polyester
27
Brush
E









resin



3201
1
65.5
0.114
87.9
47
Epoxy
180
Brush
E









resin



3202
1
1.9
0.241
2.9
47
Acrylic
26
Spray
E









resin



3203
1
2.1
1.484
12.6
52
Urethane
180
Brush
E









resin



3204
1
10.5
0.722
53.8
52
Polyester
15
Spray
E









resin



3205
1
6.5
1.573
17.8
50
Epoxy
2
Spray
G









resin



3206
1
19.5
0.629
34.7
46
Acrylic
28
Spray
E









resin



3207
1
0.8
0.333
55.7
47
Urethane
30
Spray
E









resin



3208
1
18.5
0.487
64.5
83
Polyester
2
Spray
G









resin



3209
1
4.3
2.208
68.9
52
Epoxy
157
Brush
E









resin



3210
1
3.2
2.238
64.7
89
Acrylic
28
Brush
E









resin


























TABLE 162










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3211
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes
2


3212
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes
6


3213
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes
7


3214
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes
6


3215
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes
7


3216
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes
6


3217
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes
2


3218
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes
2


3219
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes
6


3220
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes
7


3221
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes
6


3222
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes
6


3223
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes
2


3224
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes
7


3225
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes
2


3226
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes
2


3227
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes
6


3228
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes
7


3229
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes
7


3230
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes
6















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3211
1
1.5
4.680
77.9
85
Alkyl
130
Brush
E









silicate



3212
1
4.5
0.764
43.7
53
Alkyl
29
Brush
E









silicate



3213
1
15.5
0.170
7.8
88
Epoxy
30
Brush
E









resin



3214
1
10.5
1.209
16.0
85
Acrylic
120
Brush
E









resin



3215
1
2.5
4.171
89.6
52
Urethane
187
Brush
E









resin



3216
1
9
2.640
11.8
83
Polyester
28
Spray
E









resin



3217
1
10.5
0.156
4.6
88
Epoxy
5
Spray
E









resin



3218
1
5.7
2.910
2.5
49
Acrylic
35
Spray
E









resin



3219
1
3.9
0.327
18.9
50
Urethane
5
Spray
G









resin



3220
1
4.5
1.091
75.9
51
Polyester
200
Brush
E









resin



3221
1
3.6
1.826
55.9
83
Alkali
25
Spray
E









silicate



3222
1
16.4
0.764
53.8
82
Alkali
15
Spray
E









silicate



3223
1
6
2.657
97.5
88
Alkyl
20
Spray
E









silicate



3224
1
7.5
0.212
88.4
85
Alkali
18
Spray
E









silicate



3225
1
10.5
0.357
54.8
87
Alkyl
22
Spray
E









silicate



3226
1
2.6
4.639
45.7
86
Alkali
19
Spray
E









silicate



3227
1
1.5
0.160
34.7
46
Alkyl
29
Spray
E









silicate



3228
1
13.5
0.731
57.9
49
Alkali
23
Spray
E









silicate



3229
1
2.6
1.917
65.4
35
Alkyl
21
Spray
E









silicate



3230
1
6.5
0.007
87.9
30
Alkali
19
Spray
E









silicate


























TABLE 163










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3231
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes
7


3232
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes
7


3233
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes
6


3234
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes
7


3235
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes
2


3236
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes
7


3237
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes
7


3238
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes
2


3239
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes
6


3240
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes
6


3241
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes
6


3242
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes
7


3243
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes
7


3244
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes
6


3245
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes
7


3246
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes
2


3247
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes
7


3248
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes
7


3249
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes
2


3250
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes
6


3251
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes
6















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3231
1
1.6
2.462
2.9
76
Alkyl
15
Spray
E









silicate



3232
1
3.8
0.729
12.6
72
Alkali
18
Spray
E









silicate



3233
1
0.08
16.204
53.8
30
Alkyl
22
Spray
E









silicate



3234
1
164.5
0.022
17.8
83
Alkyl
21
Spray
E









silicate



3235
1
3.6
1.283
34.7
75
Alkyl
29
Spray
E









silicate



3236
1
8.6
1.688
76.8
76
Alkali
23
Spray
E









silicate



3237
1
12
1.731
58.9
72
Alkyl
21
Spray
E









silicate



3238
1
5.8
0.500
50.8
83
Alkali
19
Spray
E









silicate



3239
1
10
2.409
46.8
50
Alkyl
21
Spray
E









silicate



3240
1
1
12.750
23.7
72
Alkali
19
Spray
E









silicate



3241
1
10.5
1.113
87.9
50
Acrylic
654
Spray
E









resin



3242
1
6.5
1.133
2.9
48
Alkali
700
Spray
E









silicate



3243
1
19.5
1.195
12.6
75
Alkyl
555
Spray
E









silicate



3244
1
0.8
10.222
53.8
55
Alkyl
12
Spray
E









silicate



3245
1
5.3
0.013
17.8
38
Alkyl
152
Brush
E









silicate



3246
1
4.3
2.868
34.7
48
Urethane
674
Spray
E









resin



3247
1
3.2
1.524
76.8
76
Polyester
325
Spray
E









resin



3248
1
1.5
1.280
58.9
72
Alkyl
665
Spray
E









silicate



3249
1
4.5
1.109
50.8
75
Alkyl
354
Brush
E









silicate



3250
1
0.8
9.333
46.8
76
Alkyl
165
Spray
E









silicate



3251
1
6.5
3.667
23.7
72
Urethane
354
Spray
E









resin


























TABLE 164










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3252
16.5
2.35
9.25
35.87
88.8
11.2
0
0
Yes
1.12
Yes
Yes
2


3253
13.5
2.57
9.56
42.04
90.6
9.4
0
0
No
1.38
Yes
Yes
2


3254
0.96
2.56
9.84
6.55
81.45
18.5
0
0.05
Yes
1.22
Yes
Yes
2


3255
0.96
2.21
9.75
43.60
99.97
0.03
0
0
Yes
1.14
Yes
Yes
2


3256
8.45
2.64
9.85
44.12
98.4
1.6
0
0
No
1.02
Yes
Yes
6


3257
2.9
1.99
8.56
37.21
93.2
6.8
0
0
Yes
1.05
Yes
Yes
6


3258
5.4
2.94
8.21
43.38
84.5
13.9
0
1.6
No
1.36
No
Yes
7


3259
10.6
2.58
8.33
13.52
98.1
1.9
0
0
Yes
1.11
No
Yes
6


3260
2.32
2.37
8
44.94
94.3
5.7
0
0
No
1.07
Yes
Yes
2


3261
7.8
2.15
9.22
45.46
90.8
9.2
0
0
No
1.42
Yes
Yes
7


3262
7.95
2.96
9.36
35.96
83.3
15.4
0
1.3
Yes
1.38
No
Yes
2


3263
20.59
2.85
9.45
42.13
79.84
18.6
0
1.56
Yes
1.22
No
Yes
6


3264
22.5
2.94
9.61
7.56
96.4
3.6
0
0
Yes
1.14
Yes
Yes
6


3265
4.6
2.11
9.85
43.69
94.6
5.4
0
0
Yes
1.13
Yes
Yes
2


3266
4.9
2.68
9.23
44.21
92.4
7.6
0
0
Yes
1.02
No
Yes
2


3267
10.5
2.99
9.08
39.51
75.5
24.5
0
0
Yes
1.06
Yes
Yes
7


3268
8.45
2.78
9.87
45.68
82.4
17.6
0
0
Yes
1.05
Yes
Yes
6


3269
30.5
2.96
9.46
65.58
98.6
1.4
0
0
Yes
1.24
No
Yes
7


3270
49.5
2.85
9.28
47.24
78.5
21.5
0
0
Yes
1.33
No
Yes
2


3271
5.9
2.64
9.45
47.76
89.6
10.4
0
0
Yes
1.27
Yes
Yes
7















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3252
1
5
1.867
55.7
49
Alkyl
14
Spray
E









silicate



3253
1
198.7
0.047
64.5
89
Urethane
55
Spray
E









resin



3254
1
36
0.500
68.9
90
Alkyl
8
Spray
E









silicate



3255
1
1.5
0.012
64.7
86
Urethane
122
Brush
E









resin



3256
1
0.008
1.587
77.9
48
Alkyl
555
Spray
E









silicate



3257
1
1.4
2.833
43.7
47
Alkali
19
Spray
E









silicate



3258
1
4.2
2.673
7.8
47
Alkyl
25
Brush
E









silicate



3259
1
1.6
0.731
16.0
47
Alkyl
58
Spray
E









silicate



3260
1
7.5
0.671
89.6
52
Alkyl
685
Spray
E









silicate



3261
1
1.6
3.538
11.8
52
Alkali
19
Brush
E









silicate



3262
1
2
5.133
4.6
52
Urethane
700
Spray
E









resin



3263
1
270
0.069
2.5
88
Alkyl
77
Spray
E









silicate



3264
1
7.5
0.424
18.9
87
Alkyl
54
Spray
E









silicate



3265
1
2.9
1.385
75.9
89
Alkyl
64
Spray
E









silicate



3266
1
2.6
2.111
55.9
90
Alkyl
34
Brush
E









silicate



3267
1
0.1
22.273
53.8
91
Alkali
28
Spray
E









silicate



3268
1
1.2
8.000
97.5
46
Urethane
109
Brush
E









resin



3269
1
1.2
0.636
88.4
47
Alkyl
15
Spray
E









silicate



3270
1
62
0.341
54.8
47
Alkyl
14
Spray
E









silicate



3271
1
2.4
3.059
45.7
49
Alkyl
18
Spray
E









silicate


























TABLE 165










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3272
4.52
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes
6


3273
5.96
2.12
9.46
47.02
92.2
7.8
0
0
Yes
1.22
No
Yes
7


3274
5.5
2.34
9.46
7.66
70.5
29.5
0
0
Yes
1.13
No
Yes
6


3275
3.6
2.33
9.46
15.20
91.5
8.5
0
0
Yes
1.06
Yes
Yes
7


3276
16.5
2.23
9.06
43.16
74.5
25.5
0
0
Yes
1.05
Yes
Yes
6


3277
12.5
2.12
9.3
49.33
99.93
0.07
0
0
Yes
1.24
Yes
Yes
2


3278
16.5
2.21
8.68
19.47
89.2
10.8
0
0
No
1.05
Yes
Yes
7


3279
10.9
1.38
8.53
69.55
86
11.2
1.6
1.2
No
1.12
Yes
Yes
6


3280
5.6
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
No
Yes
6


3281
22.6
2.26
8.95
75.88
82.6
17.4
0
0
Yes
1.13
No
Yes
6


3282
20.59
2.05
12.54
48.08
98.7
1.3
0
0
Yes
1.33
Yes
Yes
2


3283
20.59
1.65
8.7
66.85
80.5
19.5
0
0
Yes
1.27
Yes
Yes
6


3284
9.56
2.35
8.55
7.68
88.85
10.8
0.05
0.3
No
1.23
No
Yes
7


3285
5.9
1.62
8.91
8.64
87.7
11.9
0.4
0
Yes
1.11
Yes
Yes
2


3286
6.54
1.88
9.91
16.58
90.5
9.5
0
0
Yes
1.42
Yes
Yes
6


3287
21.4
2.35
9.25
35.87
89.5
10.5
0
0
Yes
1.06
No
Yes
2


3288
9.8
2.57
9.56
42.04
84.9
15.1
0
0
Yes
1.05
Yes
Yes
6


3289
6.59
2.56
9.84
38.41
83.2
16.8
0
0
Yes
1.07
Yes
Yes
7


3290
6.54
2.21
9.75
6.99
89.4
10.6
0
0
Yes
1.42
No
Yes
7


3291
16.5
2.64
9.85
44.12
84.3
13.3
2.4
0
Yes
1.38
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3272
1
2.1
4.129
34.7
50
Alkali
2
Spray
G









silicate



3273
1
34.5
0.220
57.9
87
Alkyl
37
Spray
E









silicate



3274
1
270
0.109
65.4
83
Alkali
12
Spray
E









silicate



3275
1
32.5
0.254
87.9
48
Alkyl
160
Brush
E









silicate



3276
1
3
6.375
2.9
51
Alkali
5
Brush
G









silicate



3277
1
1.5
0.028
12.6
51
Alkyl
56
Brush
E









silicate



3278
1
7.5
1.271
53.8
87
Alkali
2
Spray
E









silicate



3279
1
13.5
0.772
17.8
85
Alkyl
18
Spray
E









silicate



3280
1
5
4.083
34.7
86
Alkyl
23
Spray
E









silicate



3281
1
5
2.900
76.8
50
Epoxy
30
Brush
E









resin



3282
1
1
0.650
58.9
51
Acrylic
77
Brush
E









resin



3283
1
120
0.161
50.8
51
Urethane
655
Brush
E









resin



3284
1
3.7
2.298
46.8
80
Polyester
47
Spray
E









resin



3285
1
6.1
1.676
23.7
46
Epoxy
43
Spray
E









resin



3286
1
198.5
0.048
53.8
51
Acrylic
52
Brush
E









resin



3287
1
2.5
3.000
53.8
86
Urethane
20
Brush
E









resin



3288
1
18.5
0.774
43.7
85
Polyester
200
Brush
E









resin



3289
1
8
1.867
55.9
82
Alkali
22
Spray
E









silicate



3290
1
1.6
4.077
65.8
81
Alkyl
25
Spray
E









silicate



3291
1
1.2
6.045
55.7
46
Alkali
14
Spray
E









silicate


























TABLE 166










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3292
7.8
2.65
8.56
66.99
98.6
1.4
0
0
No
1.22
Yes
Yes
2


3293
16.5
2.94
8.21
43.38
76.45
23.5
0
0.05
Yes
1.14
Yes
Yes
6


3294
6.54
2.58
8.33
39.75
91.1
8.9
0
0
Yes
1.13
Yes
Yes
7


3295
8.45
2.37
8
65.38
85.1
14.9
0
0
Yes
1.02
Yes
Yes
6


3296
8.5
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes
7


3297
13.6
2.96
9.36
22.55
97.9
2.1
0
0
Yes
1.05
Yes
Yes
6


3298
12.33
2.85
9.45
42.13
94.8
5.2
0
0
Yes
1.24
Yes
Yes
2


3299
16.5
2.94
9.61
38.50
84.6
15.4
0
0
Yes
1.33
Yes
Yes
2


3300
7.9
2.11
9.85
64.13
89.3
10.7
0
0
Yes
1.27
Yes
Yes
6


3301
10.5
2.68
9.23
44.21
83.3
16.7
0
0
Yes
1.05
Yes
Yes
7


3302
16.5
2.99
9.08
39.51
80.05
19.6
0.35
0
No
1.12
Yes
Yes
6


3303
10.64
1.82
9.87
78.64
85.5
14.5
0
0
No
1.23
Yes
Yes
6


3304
10.5
1.42
9.46
42.05
85
14.2
0
0.8
No
1.36
Yes
Yes
2


3305
20.59
2.12
9.28
64.58
87.3
12.7
0
0
No
1.11
Yes
Yes
7


3306
8.5
1.92
9.45
47.76
89.5
10.5
0
0
Yes
1.07
Yes
Yes
2


3307
0.5
2.11
9.63
24.10
87.3
11.8
0
0.9
Yes
1.42
Yes
Yes
2


3308
10.5
2.97
9.16
39.11
86.4
12.8
0.5
0.3
Yes
1.38
Yes
Yes
6


3309
11.5
2.36
10.39
19.65
93.8
6.2
0
0
Yes
1.22
Yes
Yes
7


3310
36.5
3.05
10.56
65.39
83.8
16.2
0
0
Yes
1.14
Yes
Yes
7


3311
1.5
2.15
10.74
48.57
80.4
19.6
0
0
Yes
1.13
Yes
Yes
6















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3292
1
0.5
0.933
64.5
47
Urethane
112
Spray
E









resin



3293
1
9
2.350
68.9
48
Alkali
24
Spray
E









silicate



3294
1
4.5
1.618
64.7
51
Urethane
150
Spray
E









resin



3295
1
136
0.109
77.9
53
Alkali
18
Spray
E









silicate



3296
1
13
1.314
43.7
88
Alkyl
19
Brush
E









silicate



3297
1
10.6
0.181
7.8
85
Alkyl
24
Spray
E









silicate



3298
1
1.6
2.000
16.0
83
Urethane
99
Spray
E









resin



3299
1
68
0.223
89.6
82
Alkyl
7
Spray
E









silicate



3300
1
4.5
1.945
11.8
83
Epoxy
100
Spray
E









resin



3301
1
10.5
1.452
4.6
47
Alkyl
27
Brush
E









silicate



3302
1
4.9
3.322
2.5
51
Alkali
15
Spray
E









silicate



3303
1
10.5
1.261
18.9
52
Alkyl
14
Spray
E









silicate



3304
1
192
0.074
75.9
51
Urethane
55
Spray
E









resin



3305
1
0.07
11.869
55.9
52
Alkyl
8
Spray
E









silicate



3306
1
9.5
1.000
53.8
89
Urethane
122
Brush
E









resin



3307
1
2.6
3.278
97.5
85
Alkyl
54
Spray
E









silicate



3308
1
4.5
2.327
88.4
82
Alkali
19
Spray
E









silicate



3309
1
3
1.550
54.8
87
Alkyl
25
Brush
E









silicate



3310
1
7.5
1.906
45.7
88
Alkyl
58
Spray
E









silicate



3311
1
77
0.251
34.7
49
Alkyl
21
Spray
E









silicate


























TABLE 167










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3312
8.7
2.19
10.27
24.91
87.6
12.4
0
0
Yes
1.02
Yes
Yes
7


3313
7.8
2.48
11.5
39.92
89.3
10.7
0
0
Yes
1.06
Yes
Yes
7


3314
5.96
2.85
11.67
22.65
91.5
8.5
0
0
Yes
1.05
Yes
Yes
6


3315
0.06
2.75
11.85
66.20
94.9
5.1
0
0
Yes
1.24
Yes
Yes
7


3316
0.9
2.46
11.38
49.38
75.5
24.5
0
0
Yes
1.33
Yes
Yes
2


3317
3.6
2.71
12.61
30.58
86.5
13.5
0
0
Yes
1.27
Yes
Yes
7


3318
10.5
2.36
12.78
45.59
80
20
0
0
Yes
1.05
Yes
Yes
7


3319
0.05
2.16
9.57
28.32
84.5
15.5
0
0
Yes
1.12
Yes
Yes
2


3320
2.32
2.46
9.81
71.87
88
10.5
1.5
0
Yes
1.23
Yes
Yes
6


3321
20.4
2.49
8.43
53.05
92.1
7.9
0
0
Yes
1.36
Yes
Yes
6


3322
7.34
2.95
8.55
27.74
95.2
4.8
0
0
Yes
1.11
Yes
Yes
7


3323
9.4
2.36
8.22
42.75
81.6
18.4
0
0
Yes
1.07
Yes
Yes
7


3324
23.43
2.21
9.44
23.29
86.8
12.7
0
0.5
Yes
1.42
Yes
Yes
6


3325
5.96
2.25
9.58
61.12
89.7
10.3
0
0
No
1.38
Yes
Yes
7


3326
10.64
2.44
9.67
44.30
71.2
20.8
8
0
Yes
1.22
Yes
Yes
2


3327
16.5
2.78
9.83
23.96
97.5
2.5
0
0
No
1.14
Yes
Yes
2


3328
7.95
2.15
10.07
44.09
84.8
15.2
0
0
Yes
1.13
Yes
Yes
6


3329
7.95
2.19
9.45
24.63
80.8
19.2
0
0
No
1.02
Yes
Yes
7


3330
9.64
2.48
9.3
62.46
78.7
13.5
7.8
0
Yes
1.06
Yes
Yes
6


3331
0.96
2.59
9.99
45.64
88.1
11.9
0
0
No
1.05
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3312
1
10.5
1.078
57.9
50
Alkali
19
Brush
E









silicate



3313
1
15.5
0.648
65.4
51
Urethane
56
Spray
E









resin



3314
1
5.8
1.250
87.9
52
Alkyl
77
Spray
E









silicate



3315
1
1.9
1.759
2.9
53
Alkyl
12
Spray
E









silicate



3316
1
16.9
1.369
12.6
88
Alkyl
64
Spray
E









silicate



3317
1
1.5
5.400
53.8
85
Alkyl
34
Brush
E









silicate



3318
1
0.05
19.048
17.8
83
Alkali
28
Spray
E









silicate



3319
1
215
0.072
34.7
81
Urethane
109
Brush
E









resin



3320
1
4.2
2.019
55.7
80
Alkyl
15
Spray
E









silicate



3321
1
1.5
3.160
64.5
47
Alkyl
14
Spray
E









silicate



3322
1
4.8
0.828
68.9
49
Alkyl
18
Spray
E









silicate



3323
1
0.5
12.267
64.7
50
Urethane
122
Brush
E









resin



3324
1
2.3
3.848
77.9
51
Alkyl
54
Spray
E









silicate



3325
1
0.05
9.810
43.7
52
Alkali
19
Spray
E









silicate



3326
1
120
0.172
7.8
83
Alkyl
25
Brush
E









silicate



3327
1
3.7
0.532
16.0
88
Alkyl
58
Spray
E









silicate



3328
1
16.5
0.869
89.6
85
Alkyl
21
Spray
E









silicate



3329
1
24
0.768
11.8
83
Alkali
19
Brush
E









silicate



3330
1
0.01
13.366
4.6
82
Urethane
56
Spray
E









resin



3331
1
7.8
1.352
2.5
47
Alkyl
77
Spray
E









silicate


























TABLE 168










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3332
5.26
2.47
9.58
25.30
88.5
10.6
0
0.9
Yes
1.24
Yes
Yes
2


3333
13.5
2.69
9.4
42.84
84.6
15.4
0
0
Yes
1.33
Yes
Yes
7


3334
13.5
2.57
9.57
25.44
97.4
2.6
0
0
Yes
1.27
Yes
Yes
6


3335
9.64
2.49
9.54
63.27
83.3
16.7
0
0
Yes
1.37
Yes
Yes
7


3336
16.5
2.68
9.58
46.45
91.9
8.1
0
0
Yes
1.10
Yes
Yes
7


3337
20.59
2.35
9.25
46.45
86.3
13.7
0
0
Yes
1.04
Yes
Yes
6


3338
0.96
2.48
10.04
50.91
81.5
18.5
0
0
Yes
1.02
Yes
Yes
2


3339
6.54
2.13
11.27
27.25
97.6
2.4
0
0
Yes
1.01
Yes
Yes
7


3340
5.26
1.93
11.44
42.26
89.1
10.9
0
0
Yes
1.08
Yes
Yes
2


3341
10.64
2.05
8.9
33.69
92.8
7.2
0
0
Yes
1.14
Yes
Yes
2


3342
9.64
1.42
8.75
48.70
81.96
17.5
0.5
0.04
No
1.23
Yes
Yes
7


3343
6.9
1.46
9.44
29.24
85.4
14.6
0
0
No
1.33
Yes
Yes
2


3344
10.5
1.75
9.03
67.07
90.6
9.4
0
0
Yes
1.37
Yes
Yes
7


3345
13.5
1.86
8.85
50.25
92.9
7.1
0
0
Yes
1.44
Yes
Yes
2


3346
20.59
1.74
8.95
29.91
77.5
22.5
0
0
Yes
1.21
Yes
Yes
6


3347
7.82
1.96
12.54
87.50
84.8
13.7
1.5
0
No
1.22
Yes
Yes
6


3348
5.26
1.65
8.7
30.58
87.1
12.9
0
0
No
1.23
Yes
Yes
7


3349
7.06
2.35
8.55
68.41
95.7
4.3
0
0
Yes
1.47
Yes
Yes
6


3350
0.64
1.62
10.72
54.59
80.2
17.6
1
1.2
No
1.01
Yes
Yes
2


3351
46.8
2.25
9.9
34.25
98.8
0.6
0.6
0
Yes
1.04
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3332
1
1.6
4.077
18.9
46
Alkyl
54
Spray
E









silicate



3333
1
3.2
3.667
75.9
49
Alkali
2
Spray
G









silicate



3334
1
5.4
0.406
55.9
50
Alkali
20
Spray
E









silicate



3335
1
220
0.076
53.8
51
Alkali
5
Spray
G









silicate



3336
1
2.2
2.531
97.5
83
Alkyl
20
Spray
E









silicate



3337
1
2.8
3.605
88.4
82
Alkali
15
Brush
E









silicate



3338
1
12
1.423
54.8
88
Alkyl
57
Brush
E









silicate



3339
1
10.6
0.207
45.7
85
Alkali
13
Brush
E









silicate



3340
1
35
0.303
34.7
86
Alkyl
22
Brush
E









silicate



3341
1
125.5
0.057
57.9
47
Alkali
20
Spray
E









silicate



3342
1
6
2.500
65.4
48
Alkyl
27
Spray
E









silicate



3343
1
34
0.417
87.9
50
Alkali
15
Spray
E









silicate



3344
1
1.6
3.615
2.9
51
Alkyl
35
Spray
E









silicate



3345
1
7.5
0.835
12.6
52
Alkali
34
Brush
E









silicate



3346
1
200
0.112
53.8
88
Alkyl
45
Brush
E









silicate



3347
1
7.5
1.612
17.8
89
Alkali
52
Brush
E









silicate



3348
1
3.2
3.071
34.7
86
Alkyl
23
Brush
E









silicate



3349
1
2.6
1.194
76.8
87
Alkali
5
Spray
E









silicate



3350
1
3
4.400
58.9
86
Alkyl
52
Brush
E









silicate



3351
1
15.2
0.037
50.8
46
Alkali
150
Brush
E









silicate


























TABLE 169










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3352
16.5
2.36
9.57
37.61
86.9
10.3
1.6
1.2
Yes
1.05
Yes
Yes
2


3353
13.5
2.24
10.79
45.60
92.98
7
0.02
0
Yes
1.12
Yes
Yes
2


3354
0.96
2.46
10.93
46.70
75.5
23.5
1
0
Yes
1.11
Yes
Yes
2


3355
0.96
1.56
11.02
41.22
82.5
17.5
0
0
No
1.08
Yes
Yes
2


3356
8.45
1.24
11.18
45.68
80.1
12.4
7.5
0
Yes
1.47
Yes
Yes
6


3357
2.9
1.68
11.42
22.02
85.09
14.9
0
0.01
Yes
1.50
Yes
Yes
6


3358
5.4
2.65
10.8
37.03
78.7
20.7
0
0.6
No
1.13
Yes
Yes
7


3359
10.6
2.22
10.65
28.46
91.29
8.6
0
0.11
Yes
1.26
Yes
Yes
6


3360
2.32
2.45
11.34
43.47
85.8
14.2
0
0
Yes
1.14
Yes
Yes
2


3361
7.8
2.23
11.62
35.19
98.12
0.08
0
1.8
Yes
1.49
Yes
Yes
7


3362
7.95
2.26
11.15
73.02
83.46
15.2
0
1.34
No
1.34
Yes
Yes
2


3363
20.59
2.72
12.38
56.20
73.17
17.4
9
0.43
Yes
1.18
Yes
Yes
6


3364
22.5
2.13
12.55
35.86
98.6
0.8
0.6
0
Yes
1.17
Yes
Yes
6


3365
4.6
1.98
9.34
93.45
93.55
6.4
0.05
0
Yes
1.48
Yes
Yes
2


3366
4.9
2.02
9.58
30.66
96.78
3.2
0.02
0
No
1.49
Yes
Yes
2


3367
10.5
2.21
9.88
74.21
83
9.2
7.8
0
Yes
1.27
Yes
Yes
7


3368
8.45
2.55
10
55.39
70.92
19.2
9.88
0
Yes
1.17
Yes
Yes
6


3369
30.5
1.92
10.67
30.08
80.25
15.1
4.65
0
Yes
1.16
Yes
Yes
7


3370
49.5
1.96
11.89
45.09
81.85
14.5
3.65
0
Yes
1.27
Yes
Yes
2


3371
5.9
2.11
12.03
41.41
89.45
10.5
0.05
0
Yes
1.27
Yes
Yes
7















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3352
1
0.09
9.450
46.8
49
Alkyl
60
Brush
E









silicate



3353
1
13.5
0.483
23.7
35
Alkali
15
Spray
E









silicate



3354
1
135.4
0.172
53.8
37
Alkyl
24
Spray
E









silicate



3355
1
3
4.375
53.8
36
Alkali
34
Spray
E









silicate



3356
1
7.8
1.409
43.7
38
Alkyl
20
Brush
E









silicate



3357
1
10.2
1.330
55.9
48
Alkali
200
Brush
E









silicate



3358
1
7
2.588
65.8
46
Alkyl
56
Brush
E









silicate



3359
1
225.2
0.038
55.7
51
Alkali
34
Spray
E









silicate



3360
1
5.4
2.219
64.5
46
Alkyl
2
Spray
G









silicate



3361
1
3.2
0.019
68.9
38
Alkali
15
Spray
E









silicate



3362
1
13.5
1.048
64.7
48
Alkali
10
Spray
E









silicate



3363
1
1.6
6.692
77.9
52
Alkyl
125
Brush
E









silicate



3364
1
1.5
0.320
43.7
30
Alkali
24
Brush
E









silicate



3365
1
2.5
1.829
7.8
76
Alkyl
110
Brush
E









silicate



3366
1
2.6
0.889
16.0
72
Alkali
24
Brush
E









silicate



3367
1
126
0.072
89.6
81
Alkyl
2
Spray
G









silicate



3368
1
120
0.159
11.8
64
Alkali
37
Spray
E









silicate



3369
1
7.5
1.776
4.6
69
Alkyl
113
Brush
E









silicate



3370
1
6.5
1.933
2.5
83
Alkali
2
Spray
G









silicate



3371
1
2.0
0.500
18.9
30
Alkyl
75
Brush
E









silicate


























TABLE 170










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3372
4.52
2.97
12.12
17.75
87.3
7.5
5.2
0
Yes
1.49
Yes
Yes
6


3373
5.96
2.36
12.28
32.76
93.9
6.1
0
0.001
Yes
1.29
Yes
Yes
7


3374
5.5
3.05
12.52
30.89
82.55
16.8
0.05
0.6
Yes
1.23
Yes
Yes
6


3375
3.6
2.57
11.9
45.90
70.7
27.5
1
0.8
Yes
1.23
Yes
Yes
7


3376
16.5
2.65
11.75
42.22
94.6
2.9
0
2.5
Yes
1.23
Yes
Yes
6


3377
12.5
2.54
12.44
18.56
94
4.5
0
1.5
No
1.23
Yes
Yes
2


3378
16.5
2.85
12.03
33.57
99.43
0.07
0
0.5
Yes
1.27
Yes
Yes
7


3379
10.9
2.75
10.61
31.70
96.82
3.1
0.04
0.04
Yes
1.23
Yes
Yes
6


3380
5.6
2.46
11.3
46.71
76.3
20.5
1
2.2
Yes
1.36
Yes
Yes
6


3381
22.6
2.71
11.58
47.89
68.84
29.5
0.06
1.6
Yes
1.11
Yes
Yes
6


3382
20.59
2.36
11.11
24.23
92.33
7.6
0.07
0
Yes
1.02
Yes
Yes
2


3383
20.59
2.16
12.34
39.24
95.2
0.7
1.2
2.9
Yes
1.05
Yes
Yes
6


3384
9.56
2.46
12.51
37.37
91.8
4.6
1.8
1.8
Yes
1.24
Yes
Yes
7


3385
5.9
2.49
11.64
50.38
82
8.3
9.2
0.5
Yes
1.33
Yes
Yes
2


3386
6.54
1.63
9.16
37.14
88.2
11.8
0
0
Yes
1.27
Yes
Yes
6


3387
21.4
1.51
9.46
13.48
86.06
12.9
0
1.04
Yes
1.50
Yes
Yes
2


3388
9.8
3.05
9.54
40.05
99.34
0.6
0
0.06
Yes
1.13
Yes
Yes
6


3389
6.59
2.57
9.56
38.18
89.51
9.5
0
0.99
No
1.04
Yes
Yes
7


3390
6.54
2.65
9.46
7.63
88.3
11.7
0
0
Yes
1.02
Yes
Yes
7


3391
16.5
2.54
11.99
37.95
89.9
9.4
0.7
0
Yes
1.08
Yes
Yes
2















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3372
1
0.007
7.448
75.9
83
Alkali
30
Brush
E









silicate



3373
1
9
0.610
55.9
75
Alkyl
34
Brush
E









silicate



3374
1
7.5
1.976
53.8
76
Epoxy
124
Brush
E









resin



3375
1
50
0.539
97.5
72
Acrylic
15
Spray
E









resin



3376
1
0.005
2.886
88.4
71
Urethane
23
Spray
E









resin



3377
1
25.6
0.169
54.8
82
Polyester
157
Brush
E









resin



3378
1
56.5
0.001
45.7
81
Epoxy
26
Spray
E









resin



3379
1
1.6
1.192
34.7
83
Acrylic
38
Spray
E









resin



3380
1
3
5.125
57.9
50
Urethane
160
Brush
E









resin



3381
1
100
0.292
65.4
72
Polyester
27
Brush
E









resin



3382
1
65.5
0.114
87.9
47
Epoxy
180
Brush
E









resin



3383
1
1.9
0.241
2.9
47
Acrylic
26
Spray
E









resin



3384
1
2.1
1.484
12.6
52
Urethane
180
Brush
E









resin



3385
1
10.5
0.722
53.8
52
Polyester
15
Spray
E









resin



3386
1
6.5
1.573
17.8
50
Epoxy
2
Spray
G









resin



3387
1
19.5
0.629
34.7
46
Acrylic
28
Spray
E









resin



3388
1
0.8
0.333
55.7
47
Urethane
30
Spray
E









resin



3389
1
18.5
0.487
64.5
83
Polyester
2
Spray
G









resin



3390
1
4.3
2.208
68.9
52
Epoxy
157
Brush
E









resin



3391
1
3.2
2.238
64.7
89
Acrylic
28
Brush
E









resin


























TABLE 171










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3392
7.8
2.85
12.08
14.29
87.8
11.7
0.5
0
Yes
1.15
Yes
Yes
2


3393
16.5
2.75
12.24
40.86
95.6
4.2
0.2
0
Yes
1.34
Yes
Yes
6


3394
6.54
2.46
12.48
97.50
97.13
2.8
0.07
0
Yes
1.25
Yes
Yes
7


3395
8.45
2.71
11.86
13.30
86.1
13.9
0
0
Yes
1.19
Yes
Yes
6


3396
8.5
2.36
11.71
43.62
82.6
14.6
1.6
1.2
No
1.18
Yes
Yes
7


3397
13.6
2.46
11.35
56.93
72.95
26.4
0.65
0
Yes
1.24
Yes
Yes
6


3398
12.33
1.45
12.02
36.59
83.23
16.5
0.27
0
Yes
1.11
Yes
Yes
2


3399
16.5
2.42
13.24
39.95
79.4
19.5
0.45
0.65
Yes
1.27
Yes
Yes
2


3400
7.9
2.11
9.46
86.50
97.08
1.6
0.33
0.99
Yes
1.31
Yes
Yes
6


3401
10.5
2.97
13.47
32.87
90.5
6
1
2.5
Yes
1.26
Yes
Yes
7


3402
16.5
2.36
9.46
16.23
88.93
8.4
0.87
1.8
Yes
1.14
Yes
Yes
6


3403
10.64
3.05
13.87
37.40
86.7
13.3
0
0
Yes
1.34
Yes
Yes
6


3404
10.5
2.57
13.25
40.76
81.4
18.6
0.
0
Yes
1.16
Yes
Yes
2


3405
20.59
2.65
13.1
87.31
97.34
1.8
0.86
0
No
1.47
Yes
Yes
7


3406
8.5
2.12
9.08
92.50
95.25
4.1
0.65
0
Yes
1.48
Yes
Yes
2


3407
0.5
1.65
9.87
17.93
82.87
16.7
0.43
0
No
1.49
Yes
Yes
2


3408
10.5
2.35
9.46
44.50
99
0.4
0.6
0
Yes
1.34
Yes
Yes
6


3409
11.5
1.63
9.28
96.50
89.35
10.6
0.05
0
Yes
1.29
Yes
Yes
7


3410
36.5
2.64
9.45
16.94
93.08
6.9
0.02
0
Yes
1.18
Yes
Yes
7


3411
1.5
2.35
9.25
88.12
99.82
0.05
0.06
0.07
Yes
1.48
Yes
Yes
6















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3392
1
1.5
4.680
77.9
85
Alkyl
130
Brush
E









silicate



3393
1
4.5
0.764
43.7
53
Alkyl
29
Brush
E









silicate



3394
1
15.5
0.170
7.8
88
Epoxy
30
Brush
E









resin



3395
1
10.5
1.209
16.0
85
Acrylic
120
Brush
E









resin



3396
1
2.5
4.171
89.6
52
Urethane
187
Brush
E









resin



3397
1
9
2.640
11.8
83
Polyester
28
Spray
E









resin



3398
1
10.5
0.156
4.6
88
Epoxy
5
Spray
E









resin



3399
1
5.7
2.910
2.5
49
Acrylic
35
Spray
E









resin



3400
1
3.9
0.327
18.9
50
Urethane
5
Spray
G









resin



3401
1
4.5
1.091
75.9
51
Polyester
200
Brush
E









resin



3402
1
3.6
1.826
55.9
83
Alkali
25
Spray
E









silicate



3403
1
16.4
0.764
53.8
82
Alkali
15
Spray
E









silicate



3404
1
6
2.657
97.5
88
Alkyl
20
Spray
E









silicate



3405
1
7.5
0.212
88.4
85
Alkali
18
Spray
E









silicate



3406
1
10.5
0.357
54.8
87
Alkyl
22
Spray
E









silicate



3407
1
2.6
4.639
45.7
86
Alkali
19
Spray
E









silicate



3408
1
1.5
0.160
34.7
46
Alkyl
29
Spray
E









silicate



3409
1
13.5
0.731
57.9
49
Alkali
23
Spray
E









silicate



3410
1
2.6
1.917
65.4
35
Alkyl
21
Spray
E









silicate



3411
1
6.5
0.007
87.9
30
Alkali
19
Spray
E









silicate


























TABLE 172










Percent










Diameter
of fine-



Mg solid




distribution
grain



solution




(peak
metal



phase and




diameter) of
grains



Zn—Mg
Any of



Ave diameter
Zn metal
among Zn
Chemical component
Alloy

inter-
MgZn2,



of later-
grains/Zn
metal
content of Zn metal
grain

metallic
Mg2Zn11,



added Zn
alloy grains
grains/
grains/Zn alloy
fracture

compounds
Mg2Zn3,


Invention
metal
(μm)
Zn alloy
grains
surfaces

present on
MgZn,

















Example
grains
Fine
Coarse
grains
(Mass %)
or cracks
Average
grain
Mg7Zn3
Number of




















No
(μm)
metal
metal
(Vol %)
Zn
Mg
Al
Si
present?
aspect ratio
surfaces?
present?
faces





3412
8.7
2.31
9.46
60.57
91.56
6.4
1.05
0.99
Yes
1.27
Yes
Yes
7


3413
7.8
2.62
9.46
39.48
93.36
3.5
2.6
0.54
Yes
1.17
Yes
Yes
7


3414
5.96
2.52
9.46
15.82
82.13
17.5
0.05
0.32
Yes
1.27
Yes
Yes
6


3415
0.06
2.24
13.32
49.57
91.2
3.6
5.2
0
No
1.27
Yes
Yes
7


3416
0.9
0.05
6.54
86.52
94.1
5.9
0
0.001
Yes
1.48
Yes
Yes
2


3417
3.6
2.42
6.35
90.98
83.2
16.2
0
0.6
No
1.49
Yes
Yes
7


3418
10.5
0.11
7.54
67.32
76.7
22.5
0
0.8
Yes
1.34
Yes
Yes
7


3419
0.05
1.92
8.64
82.33
96.52
3.4
0.04
0.04
Yes
1.23
Yes
Yes
2


3420
2.32
0.46
6.45
73.76
68.3
26.5
3
2.2
Yes
1.23
Yes
Yes
6


3421
20.4
0.77
6.48
88.77
72.84
25.5
0.06
1.6
Yes
1.23
Yes
Yes
6


3422
8.6
2.35
9.25
45.02
87.2
12.8
0
0
Yes
1.05
Yes
Yes
6


3423
10.5
2.33
9.46
15.2
91.5
8.5
0
0
Yes
1.06
Yes
Yes
7


3424
8.7
1.95
9.32
51.41
75.23
24.5
0.27
0
Yes
1.38
Yes
Yes
7


3425
7.8
2.15
9.22
45.46
77.48
18.4
2.55
1.57
Yes
1.06
Yes
Yes
6


3426
5.96
2.23
11.62
35.19
72.62
0.08
25.5
1.8
Yes
1.49
Yes
Yes
7


3427
1.6
2.26
11.15
73.02
64.06
15.2
19.4
1.34
No
1.34
Yes
Yes
2


3428
7.2
1.98
9.34
93.45
83
6.4
10.6
0
Yes
1.48
Yes
Yes
7


3429
10.5
2.02
9.58
30.66
86.4
3.2
10.4
0
No
1.49
Yes
Yes
7


3430
3.6
2.36
12.28
32.76
80.4
6.1
13.5
0.001
Yes
1.29
Yes
Yes
2


3431
4.5
3.05
12.52
30.89
70.1
16.8
12.5
0.6
Yes
1.23
Yes
Yes
6


3432
7.9
2.57
11.9
45.9
60.9
27.5
10.8
0.8
Yes
1.23
Yes
Yes
6















Ratio of (Zn metal

Coating details















grains or Zn alloy

Ratio of fine






grains):(Later-

metal grains



added Zn metal

in coat



grains)
Mg
outermost
Total




















Later-
content
surface layer
metal








Zn metal
added
of all
10% thickness
grain



Invention
grains/
Zn
metal
to total fine
content
Base
Coat



Example
Zn alloy
Metal
grains
metal grains
of coat
resin
thickness
Coating
Corrosion



No
grains
grains
(Mass %)
(Mass %
(Mass %)
type
(μm)
method
Test Results







3412
1
1.6
2.462
2.9
76
Alkyl
15
Spray
E









silicate



3413
1
3.8
0.729
12.6
72
Alkali
18
Spray
E









silicate



3414
1
0.08
16.204
53.8
30
Alkyl
22
Spray
E









silicate



3415
1
164.5
0.022
17.8
83
Alkyl
21
Spray
E









silicate



3416
1
3.6
1.283
34.7
75
Alkyl
29
Spray
E









silicate



3417
1
8.6
1.688
76.8
76
Alkali
23
Spray
E









silicate



3418
1
12
1.731
58.9
72
Alkyl
21
Spray
E









silicate



3419
1
5.8
0.500
50.8
83
Alkali
19
Spray
E









silicate



3420
1
10
2.409
46.8
50
Alkyl
21
Spray
E









silicate



3421
1
1
12.750
23.7
72
Alkali
19
Spray
E









silicate



3422
1
10.5
1.113
87.9
50
Acrylic
654
Spray
E









resin



3423
1
6.5
1.133
2.9
48
Alkali
700
Spray
E









silicate



3424
1
19.5
1.195
12.6
75
Alkyl
555
Spray
E









silicate



3425
1
0.8
10.222
53.8
55
Alkyl
12
Spray
E









silicate



3426
1
5.3
0.013
17.8
38
Alkyl
152
Brush
E









silicate



3427
1
4.3
2.868
34.7
48
Urethane
674
Spray
E









resin



3428
1
3.2
1.524
76.8
76
Polyester
325
Spray
E









resin



3429
1
1.5
1.280
58.9
72
Alkyl
665
Spray
E









silicate



3430
1
4.5
1.109
50.8
75
Alkyl
354
Brush
E









silicate



3431
1
0.8
9.333
46.8
76
Alkyl
165
Spray
E









silicate



3432
1
6.5
3.667
23.7
72
Urethane
354
Spray
E









resin










INDUSTRIAL APPLICABILITY
As explained in the foregoing, the present invention enables provision of highly corrosion-resistant coating material and highly corrosion-resistant steel that exhibit excellent corrosion-resistance and rust prevention unattainable using the metal particles added to conventional rust-prevention coating materials. It achieves this improvement over the prior art by producing Zn metal particles or Zn alloy particles having two grain-diameter frequency peaks in the grain-diameter frequency distribution and combining the particles with an inorganic or organic binder.
The present invention therefore can therefore be advantageously applied for primary rust proofing or combating corrosion of steel materials used in industrial machinery, vehicles, ships, chemical industry facilities, buildings, bridges and the like. As such, it has considerable industrial applicability.

## Claims

1. A highly corrosion-resistant, rust-prevention coating material comprising:
one of an organic binder and an inorganic binder; and
Zn-alloy particles, the Zn-alloy particles comprising Zn, 0.1 to 30 percent Mg, and unavoidable impurities, and having physical fragmentation faces and/or cracks of 0.01 μm or greater length, or cracks of 0.01 μm or greater depth, wherein
a Mg solid solution phase and Zn—Mg intermetallic compounds are present at fracture facets and/or cracks, wherein
the Zn-alloy particles are dispersed in the binder in an amount of 30 mass % or greater based on a mass of a dry coating film of the coating material,
wherein
(i) the Zn-alloy particles include:
(i-1) fine-grain Zn-alloy particles having a peak grain diameter in the range of 0.05 to 5 μm, the fine-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, and
(i-2) coarse-grain Zn-alloy particles having a peak grain diameter in the range of 6 to 100 μm, the coarse-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, such that
a grain-diameter frequency distribution of all the Zn-alloy particles has the grain-diameter frequency distribution peak of the fine-grain Zn-alloy particles and the grain-diameter frequency distribution peak of the coarse-grain Zn-alloy particles;
and wherein
(ii) 5 to 99% in volume percent of the Zn-alloy particles are Zn-alloy particles have a diameter in the range of 0.05 to 5 μm.

2. The highly corrosion-resistant, rust-prevention coating material according to claim 1, the Zn alloy particles having an average aspect ratio value, determined from maximum grain diameter/minimum grain diameter, in a range of 1 to 1.5.

3. The highly corrosion-resistant, rust-prevention coating material according to claim 1, wherein the Zn—Mg intermetallic compounds are selected from the group consisting of MgZn2, Mg2Zn11, Mg2Zn3, MgZn, Mg7Zn3, and combinations thereof.

4. The highly corrosion-resistant, rust-prevention coating material according to claim 1, wherein the Zn-alloy particles are polyhedrons having multiple flat or curved surfaces each enclosed by a single contour line.

5. The highly corrosion-resistant, rust-prevention coating material according to claim 1, further comprising, dispersed in the binder, metal particles of Zn and a balance of unavoidable impurities, the dispersed metal particles of Zn and a balance of unavoidable impurities having an average grain diameter of 0.05 to 50 μm,
wherein
(a) 5 to 99% in volume percent of all metal particles are Zn-alloy particles having a grain diameter of 0.05 to 50 μm; and
(b) the metal particles are dispersed in the binder in an amount of 30 mass % or greater based on a mass of a dry coating film of the coating material.

6. The highly corrosion-resistant, rust-prevention coating material according to claim 1, wherein the binder is an organic binder.

7. A highly corrosion-resistant, rust-prevention coating material comprising:
one of an organic binder and an inorganic binder;
Zn-alloy particles comprising Zn, 0.1 to 30 percent Mg, and unavoidable impurities; and
metal particles of Zn and a balance of unavoidable impurities, the metal particles of Zn and a balance of unavoidable impurities having an average grain diameter of 0.05 to 50 μm; wherein
the Zn-alloy particles and metal particles of Zn and a balance of unavoidable impurities are dispersed in the binder in an amount of 30 mass % or greater based on a mass of a dry coating film of the coating material; wherein
(i) the Zn-alloy particles include:
(i-1) fine-grain Zn-alloy particles having a peak grain diameter in the range of 0.05 to 5 μm, the fine-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, and
(i-2) coarse-grain Zn-alloy particles having a peak grain diameter in the range of 6 to 100 μm, the coarse-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, such that
a grain-diameter frequency distribution of all the Zn-alloy particles has the grain-diameter frequency distribution peak of the fine-grain Zn-alloy particles and the grain-diameter frequency distribution peak of the coarse-grain Zn-alloy particles;
and wherein
(ii) 5 to 99% in volume percent of the Zn-alloy particles are Zn-alloy particles have a diameter in the range of 0.05 to 5 μm; and wherein
5 to 99% in volume percent of all metal particles are Zn alloy particles have a grain diameter of 0.05 to 5 μm;
wherein a ratio, in mass %, of one of the amount of the fine-grain and coarse-grain Zn-alloy particles or the amount of the fine-grain and coarse-grain Zn alloy particles to the amount of the Zn metal particles of an average grain diameter of 0.05 to 50 μm containing Zn and a balance of unavoidable impurities is 1/300.0 or less.

8. The highly corrosion-resistant, rust-prevention coating material according to claim 7, wherein the Mg content of the mixed particles including the Zn alloy particles and the Zn metal particles of an average grain diameter of 0.05 to 50 μm containing Zn and a balance of unavoidable impurities is 0.01 to less than 30 mass % where the total of the mixed particles is defined as 100 mass %.

9. A highly corrosion-resistant steel coated with a highly corrosion-resistant, rust-prevention coating material,
a dry coating film of the coating material having a thickness of 2 to 700 μm, the coating material comprising:
one of an organic binder and an inorganic binder; and
Zn alloy particles comprising Zn, Mg: 0.01 to 30%, and unavoidable impurities, the Zn alloy particles dispersed in the binder in an amount of 30 mass % or greater based on a mass of a dry coating film of the coating material,
wherein
(i) the Zn alloy particles include:
(i-1) fine-grain Zn alloy particles having a peak grain diameter in the range of 0.05 to 5 μM, the fine-grain Zn alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, and
(i-2) coarse-grain Zn alloy particles having a peak grain diameter in the range of 6 to 100 μm, the coarse-grain Zn alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, such that
a grain-diameter frequency distribution of all the Zn alloy particles has the grain-diameter frequency distribution peak of the fine-grain Zn alloy particles and the grain-diameter frequency distribution peak of the coarse-grain Zn alloy particles;
and wherein
(ii) 5 to 99% in volume percent of the Zn alloy particles are Zn alloy particles having a diameter in the range of 0.05 to 5 μm
and wherein
the fine-grain Zn alloy particles having a grain diameter of 0.05 to 5 μm are present in an amount in an outermost 10% thickness surface layer region of the dry film that is at least twice the amount of the fine-grain Zn alloy particles of a grain diameter of 0.05 to 5 μm in the dry film as a whole.

10. A highly corrosion-resistant steel coated with a highly corrosion-resistant, rust-prevention coating material, comprising:
a dry coating film of a coating material having a thickness of 2 to 700 μm, the coating material comprising:
one of an organic binder and an inorganic binder; and
Zn-alloy particles, the Zn-alloy particles comprising Zn, 0.1 to 30 percent Mg, and unavoidable impurities, and having physical fragmentation faces and/or cracks of 0.01 μm or greater length, or cracks of 0.01 μm or greater depth, wherein
a Mg solid solution phase and Zn—Mg intermetallic compounds are present at fracture facets and/or cracks, wherein
the Zn-alloy particles are dispersed in the binder in an amount of 30 mass % or greater based on a mass of a dry coating film of the coating material,
wherein
(i) the Zn-alloy particles include:
(i-1) fine-grain Zn-alloy particles having a peak grain diameter in the range of 0.05 to 5 μm, the fine-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, and
(i-2) coarse-grain Zn-alloy particles having a peak grain diameter in the range of 6 to 100 μm, the coarse-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, such that
a grain-diameter frequency distribution of all the Zn-alloy particles has the grain-diameter frequency distribution peak of the fine-grain Zn-alloy particles and the grain-diameter frequency distribution peak of the coarse-grain Zn-alloy particles;
and wherein
(ii) 5 to 99% in volume percent of the Zn-alloy particles are Zn-alloy particles having a diameter in the range of 0.05 to 5 μm.

11. A steel structure comprising:
a highly corrosion-resistant steel coated with a highly corrosion-resistant, rust-prevention coating material, the highly corrosion-resistant, rust-prevention coating material comprising:
a dry coating film of the coating material having a thickness of 2 to 700 μm, the coating material comprising:
one of an organic binder and an inorganic binder; and
Zn-alloy particles comprising Zn, 0.1 to 30 percent Mg, and unavoidable impurities, and having physical fragmentation faces and/or cracks of 0.01 μm or greater length, or cracks of 0.01 μm or greater depth; wherein
a Mg solid solution phase and Zn—Mg intermetallic compounds are present at fracture facets and/or cracks, wherein
the Zn-alloy particles are dispersed in the binder in an amount of 30 mass % or greater based on a mass of a dry coating film of the coating material,
wherein
(i) the Zn-alloy particles include:
(i-1) fine-grain Zn-alloy particles having a peak grain diameter in the range of 0.05 to 5 μm, the fine-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, and
(i-2) coarse-grain Zn-alloy particles having a peak grain diameter in the range of 6 to 100 μm, the coarse-grain Zn-alloy particles having a grain-diameter distribution, a grain-diameter frequency distribution of the grain diameter distribution having a single peak and a tail on either side of the peak, such that
a grain-diameter frequency distribution of all the Zn-alloy particles has the grain-diameter frequency distribution peak of the fine-grain Zn-alloy particles and the grain-diameter frequency distribution peak of the coarse-grain Zn-alloy particles;
and wherein
(ii) 5 to 99% in volume percent of the Zn-alloy particles are Zn-alloy particles having a diameter in the range of 0.05 to 5 μm.