Gold-palladium-nickel-copper-manganese filler metal for joining superalloy
AssigneeGTE Products Corporation
InventorHoward Mizuhara
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Abstract
A filler metal for brazing parts made of superalloys has a brazing temperature of 1025.degree.-1080.degree. C., a solidus temperature above 1000.degree. C., a liquidus temperature above 1018.degree. C. and a composition of, in weight percent, 5-30 gold, 15-35 palladium, 10-30 nickel, 20-48 copper, 5-25 manganese.
Claims4
The method of joining metal parts made of a superalloy having a solution heat treating temperature of 1025.degree.-1080.degree. C. comprising the steps of disposing a brazing alloy at the joint between the parts, the brazing alloy having a solidus temperature above 1000.degree. C. and a liquidus temperature above 1018.degree. C. and having a composition of, in weight percent, 5-30 gold, 15-35 palladium, 10-30 nickel, 20-48 copper, 5-25 manganese, and brazing the parts at a temperature of 1025.degree.-1080.degree. C. to form a uniform fillet at the joint.
Dependencies are inferred from the claim text.