Method for making fine-grained Cu-Ni-Sn alloys

Details Method for making fine-grained Cu-Ni-Sn alloys Method for making fine-grained Cu-Ni-Sn alloys

1978-01-23

1979-03-06

Stallard, W.

Metal treatment

Compositions

Heat treating

148 127C, 148160, C22F 108

Patent

active

041429184

ABSTRACT:
Cu-Ni-Sn alloys are of commercial interest in applications which involve shaping by mechanical working of an alloy as well as in casting applications. Disclosed is a method which is particularly beneficial for casting and forging applications, i.e. applications which involve only limited amounts of working or none at all. The disclosed method allows the production 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. The resulting fine-grained alloy may undergo further processing as may be beneficial, e.g., to develop desired levels of strength and ductility.

REFERENCES:
patent: 1816509 (1931-07-01), Wise
patent: 4012240 (1977-03-01), Hinrichsen et al.

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