Nickel palladium base brazing alloy

Details Nickel palladium base brazing alloy Nickel palladium base brazing alloy

1978-06-28

1979-04-17

Rutledge, III, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75134N, 75171, 75172R, C22C 1905, C22C 3000

Patent

active

041498810

ABSTRACT:
A brazing alloy composition consisting essentially of from about 17 to about 44 percent by weight of palladium, from about 4 to 11 percent by weight of chromium, from about 1 to about 4 percent by weight of silicon from about 1.5 to about 4 percent by weight of boron and the balance nickel is suitable for brazing in the temperature range of from about 1750.degree. F. to about 1850.degree. F. with a recommended brazing temperature of about 1800.degree. F. The brazing temperature of the brazing alloy of this invention is lower than the brazing temperatures of conventional Ni-base phosphorus-free brazing alloys and has good stress-rupture characteristics and oxidation resistance up to 1400.degree. F.

REFERENCES:
patent: 3070875 (1963-01-01), Feduska
patent: 3497332 (1970-02-01), Donnelly et al.
patent: 4061495 (1977-12-01), Selman et al.

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