Metal treatment – Stock – Age or precipitation hardened or strengthened
Patent
1984-06-08
1985-11-05
Skiff, Peter K.
Metal treatment
Stock
Age or precipitation hardened or strengthened
148 127C, C22C 906, C22F 108
Patent
active
045511870
ABSTRACT:
This invention is directed to age hardenable copper beryllium alloys, and to articles and parts made therefrom, which contain special small amounts of beryllium and cobalt; e.g., about 0.2% to about 0.5% beryllium and about 0.2% to about 0.4% cobalt, which, when finished by solution treating, cold working at least about 50% or at least about 70% and age hardening have a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength.
REFERENCES:
patent: 2131475 (1938-09-01), Hensel et al.
patent: 2139497 (1938-12-01), Hensel et al.
patent: 2169190 (1939-08-01), Kelly
patent: 2406683 (1946-08-01), Hensel et al.
patent: 4179314 (1979-12-01), Wikle
patent: 4425168 (1984-01-01), Goldstein et al.
Church Nathan L.
Cribb W. Raymond
Harkness John C.
Brush Wellman Inc.
Kalil Eugene J.
MacQueen Ewan C.
Skiff Peter K.
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