Patent application EP19176980A (EP), filed 2019-05-28
Publication number: EP3744864A1
Title: METALLIC POWDER MIXTURE FOR BUILD-UP OR REPAIR
Abstract: [0001]    During a mixture of a nickel based super alloy a MCrALY composition and a praise alloy a good composition is found for welding or for additive manufacturing.
IPC codes: B22F   1/    00            A I
B22F   3/   105            A I
B23K  26/   342            A I
B23P   6/    00            A I
C22C   1/    04            A I
C22C  19/    05            A I
C22C  19/    07            A I
Claims: number: 1
text: 5%
-
2.5% Rhenium (Re) or between 0.5% - 1.5% Rhenium
number: 2
text: Metallic powder mixture according to claim 1, wherein the nickel (Ni) base superalloy comprises, especially consists of (in wt%):
number: 3
text: Metallic powder mixture according to one or both of the claims 1 or 2,
wherein the nickel (Ni) base superalloy comprises, especially consists of (in wt%):
number: 4
text: Mixture according to any of the claims 1 or 2,
wherein the nickel based super alloy is selected from Alloy247, Inconel625, Rene 80 or Merl72, especially Alloy247.
number: 5
text: Metallic powder mixture according to any of the claims 1 to 4,
wherein the braze alloy comprises,
especially consists of (in wt%):
number: 6
text: Metallic powder mixture according to any of the claims 1 to 5,
wherein the braze alloy comprises,
especially consists of (in wt%):
number: 7
text: Metallic powder mixture according to any of the claims 1, 5 or 6,
wherein the melt depressant Zirconium (Zr) is at least partially replaced by or it is additionally added: Silicon (Si) and/or Magnesium (Mg) and/or Mangan (Mn).
number: 8
text: Metallic mixture according to any of the claims 1, 2, 3, 4, 5, 6 or 7,
wherein the NiCoCrAlY composition comprises,
especially consists of(in wt%):
number: 9
text: 0%
-
11.5% Aluminum (Al)
number: 10
text: 5%
- 11.5% Aluminum (Al)
number: 11
text: Mixture according to any of the claims 1 to 7,
wherein the NiCoCrAlY composition comprises, especially consists of (in wt%):
number: 12
text: Mixture according to any of the claims 1 to 7,
wherein NiCoCrAlY-X comprises,
especially consists of
Nickel (Ni), Cobalt (Co), Chromium (Cr), Aluminum (Al), Yttrium (Y) or any other Rare Earth Metal,
especially only Yttrium (Y) and
optional X selected from the group Tantalum (Ta), Rhenium (Re), Silicon (Si) and/or Iron (Fe).
number: 13
text: Method to build up metallic material,
wherein a metallic powder mixture of any of the claims 1 to 12 is used.
number: 14
text: Method according to claim 13,
used for welding using powder cladding, wire welding or for additive manufacturing using powder beds,
especially SLM, SLS.
number: 15
text: Product
produced by a method according to claim 13 or 14 or comprising a metallic powder mixture to any claims 1 to 12.
number: 20
text: 0%
-
22.0% Chromium (Cr)
number: 22
text: 0%
- 24.0% Cobalt (Co)
number: 24
text: 0%
-
26.0% Cobalt (Co)
Office action: search_report, dated 2020-12-02
Prior art cited: ref_id: - XIAO HUANG ET AL: "Wide Gap Braze Repair of Gas Turbine Blades and Vanes-A Review", JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER., vol. 134, no. 1, 1 January 2012 (2012-01-01), US, pages 010801, XP055473801, ISSN: 0742-4795, DOI: 10.1115/1.4003962
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Final disposition: pending (2020-12-02)