Patent ID: 6195864
Filing Date: 2001-03-06
Classification: B23K,Y10T

Abstract:
A method of repairing a damaged region of a corrosion resistant superalloy substrate comprising:preparing a repair mixture comprising a cobalt-base braze alloy, a base metal alloy composition and an organic binder, said cobalt-base braze alloy consisting essentially of, in percent by weight:Nickel from about 0.001% to less than the weight percent of cobalt;at least one element selected from the group consisting of:Rhenium from about 0.001% to about 15%,Palladium from about 0.001% to about 40%,Platinum from about 0.001% to about 40%,Iridium from about 0.001% to about 12%, andRuthenium from about 0.001% to about 12%;at least one element selected from the group consisting of:Boron from about 0.001% to about 6% andSilicon from about 0.001% to about 10%; andat least one element from the group consisting of:Chromium, Aluminum, Titanium, Tungsten, Molybdenium, Niobium, Rhenium, Hafnium, Tantalum, Iron, Manganese, Rare earth/Lanthanide elements, Carbon, and Zirconium; andthe balance Cobalt;depositing said repair mixture on at least a portion of the damaged region; andjoining the deposited repair mixture to the superalloy substrate.