Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Patent
1991-07-08
1993-08-31
Dean, R.
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
428668, 428678, 428680, 228119, 22826231, C22C 1905, C22C 1907, B23K 3102
Patent
active
052404919
ABSTRACT:
A series of braze materials for brazing superalloy substrates at effective brazing temperatures above about 2300.degree. F. is described. The braze materials are formulated as mixtures of cobalt- and nickel-base alloy powders. Each such braze material contains at least two components, one of which is predominantly liquid at the effective brazing temperature, and one of which remains substantially solid at that temperature. The brazing materials solidify by an isothermal solidification process. Unless otherwise limited by the temperature capability of the superalloy substrate being joined, these brazing alloys provide joints that have useful strength at temperatures significantly higher than joints made with prior art brazing alloys.
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Budinger David E.
Ferrigno Stephen J.
Murphy Wendy H.
Dean R.
General Electric Company
Maria Carmen Santa
Phipps Margery S.
Squillaro Jerome C.
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