Nickel-palladium-chromium-boron brazing alloy

Details Nickel-palladium-chromium-boron brazing alloy Nickel-palladium-chromium-boron brazing alloy

1981-10-09

1983-11-08

Hearn, Brian E.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Structured visual or optical indicator, per se

420456, C22C 1904

Patent

active

044141785

ABSTRACT:
An improved brazing alloy, particularly suited for use in high temperature gas turbine engines, has a composition range which exhibits X-ray inspection capability, improved stress rupture properties, good ductiity and oxidation resistance up to 1400.degree. F. The brazing alloy consists essentially of, by weight, about 20-80% Pd, 2-13% Cr, 1-4% B, balance being Ni and incidental impurities. The brazing alloy is capable of brazing in the 1800.degree.-2000.degree. F. temperature range and is less costly than Au-bearing brazing alloys currently in use for brazing in this temperature range.

REFERENCES:
patent: 2903352 (1959-09-01), Bredzs
patent: 3053652 (1962-09-01), Mobley et al.
patent: 3089769 (1963-05-01), Huschke, Jr. et al.
patent: 3155499 (1962-04-01), Mobley
patent: 3497332 (1970-02-01), Donnelly et al.
patent: 3764307 (1973-10-01), Barb et al.
patent: 3853548 (1974-12-01), Fairbanks et al.
patent: 4149881 (1979-04-01), D'Silva
patent: 4283225 (1981-08-01), Sexton et al.

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