Nickel base brazing alloy and method

Details Nickel base brazing alloy and method Nickel base brazing alloy and method

1982-12-01

1985-03-26

Dean, R.

Alloys or metallic compositions

Nickel base

Chromium containing

22826313, C22C 1905

Patent

active

045072647

ABSTRACT:
A nickel base diffusion brazing alloy suitable for brazing gamma and gamma prime strengthened superalloys at temperatures as low as 2150.degree. F. The improved brazing alloy consists essentially of the following, in weight percent: 12 to 14% chromium, 2 to 4% tantalum, 2.5 to 4% boron, 0.01 to 0.06% yttrium, 2.5 to 5% aluminum, less than 0.03% carbon and the balance nickel, with incidental impurities. The preferred composition of the nickel base diffusion brazing alloy comprises 12.5 to 13.5% chromium, 2 to 4% tantalum, 2.5 to 3.5% boron, 0.01 to 0.03 yttrium, 3.5 to 4.5% aluminum, less than 0.03% carbon and the balance nickel, with incidental impurities.

REFERENCES:
patent: 4312682 (1982-01-01), Herchenroeder

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