Production of beryllium-copper alloys and alloys produced thereb

Details Production of beryllium-copper alloys and alloys produced thereb Production of beryllium-copper alloys and alloys produced thereb

1987-11-13

1988-12-20

Yee, Deborah

Metal treatment

Compositions

Heat treating

148435, 148432, 148 2, C22F 108, C22C 906

Patent

active

047923652

ABSTRACT:
A process for producing beryllium-copper alloys is disclosed, which comprises the steps of obtaining a cast ingot by melting an alloy essentially consisting of from 0.05 to 2.0% by weight of Be, form 0.1 to 10.0% by weight of at least one kind of Co and Ni, and the balance being substantially Cu, subjecting the thus obtained cast ingot to a solution treatment at a temperature range from 800.degree. to 1,000.degree. C., cold working, annealing at a temperature range from 750.degree. to 950.degree. C. being lower than the solution treating temperature, and then an age hardening treatment. The alloy may further contain from 0.05 to 4.0% by weight of at least one kind of Si, Al, Mg, Zr, Sn, and Cr in a total amount. By this producing process, the beryllium-copper alloys having higher strength and formability can be otained due to uniform and fine dispersion of solid-unsolved precipitate.

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