Processing of copper alloys

Details Processing of copper alloys Processing of copper alloys

1985-02-25

1986-07-08

Stallard, Wayland

Metal treatment

Stock

Age or precipitation hardened or strengthened

420485, 420494, C22F 108

Patent

active

045991200

ABSTRACT:
This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and nickel, e.g., about 0.05% to about 0.5% beryllium and about 0.05% to about 1% nickel where cobalt may be substituted for up to about one-half of said nickel content at a substitution ratio of about 1 part by weight cobalt for about 2 parts by weight nickel, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.

REFERENCES:
patent: 2169190 (1969-08-01), Kelly
patent: 2289593 (1942-07-01), Sawyer et al.
patent: 4179314 (1979-12-01), Wikle
patent: 4377424 (1983-03-01), Hirao et al.
patent: 4425168 (1984-01-01), Goldstein et al.
Electronic Design 3, Feb. 1, 1977, "Some Answers About Inlay Clad Metals and the New Opportunities Open to Design Engineers", p. 11.

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