| 摘要 |
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. |
