Copper base spinodal alloy strip and process for its preparation

Details Copper base spinodal alloy strip and process for its preparation Copper base spinodal alloy strip and process for its preparation

1981-11-13

1983-02-15

Stallard, W.

Metal treatment

Compositions

Heat treating

148 115P, 148 127C, 148400, 1481261, 419 23, 419 28, 419 37, 419 53, 419 57, C22F 108, B22F 316

Patent

active

043739709

ABSTRACT:
Copper base spinodal alloy strip of good strength and ductility is provided, the alloy containing 5 to 35 percent nickel, 7 to 13 percent tin, balance essentially copper, and having an unaged microstructure characterized by an equiaxed grain structure of substantially all alpha, face-centered-cubic phase with a substantially uniform dispersed concentration of tin and a substantial absence of tin segregation. The strip is prepared from copper alloy powder of the indicated composition by a process comprising the steps of compaction, sintering, cooling, rolling and annealing. The strip after aging may contain up to about 50 percent alpha plus gamma phase.

REFERENCES:
patent: 4012240 (1977-03-01), Hinrichsen
patent: 4110130 (1978-08-01), Nadkarni
patent: 4142918 (1979-03-01), Plewes

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