C - Chemistry – Metallurgy – 22 – F
Patent
C - Chemistry, Metallurgy
22
F
148/35
C22F 1/08 (2006.01) C22F 1/10 (2006.01)
Patent
CA 1119921
Plewes, J.T. 8 METHOD FOR MAKING FINE-GRAINED CU-NI-SN ALLOYS Abstract of the Disclosure The invention relates to a method for the pro- duction of a fine-grained structure in a Cu-Ni-Sn alloy by a thermal treatment which calls for maintaining the alloy at three specified distinct temperature levels for specified time periods and includes partial homo- genization of the alloy at a specific temperature and for a specific period of time, relatively fast cooling, aging at another specific temperature and at another specific period of time, complete homogenization at a third specific temperature and for a third specific period of time and relatively fast cooling of the body. The resulting fine-grained alloy may undergo further process- ing as may be beneficial, e.g., to develop desired levels of strength and ductility. The disclosed method is particularly beneficial for casting and forging applica- tions, i.e., applications which involve only limited amounts of working or none at all.
319819
Kirby Eades Gale Baker
Western Electric Company Incorporated
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