Thermomechanical processing of beryllium-copper alloys

Details Thermomechanical processing of beryllium-copper alloys Thermomechanical processing of beryllium-copper alloys

C - Chemistry, Metallurgy

22

F

148/35

C22F 1/08 (2006.01)

Patent

CA 1237361

Abstract of the Disclosure The invention contemplates a thermomechanical process applicable to beryllium copper alloys containing, by weight, about 0.1% to about 1.2% beryllium, at least about 0.1% to about 3.5% nickel, up to about 3% cobalt, with the total content of nickel and cobalt being about 0.5% to about 3.5%, which process comprises solution annealing said alloy at a temperature of at least about 90% of the incipient melting point in °F. therefor, cold working the solution treated alloy to reduce the section thickness at least about 60% or much more and then aging the alloy to produce therein an improved combination of properties including strength, ductility, formability and conductivity.

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