Copper alloys capable of spinodal decomposition and a method of

Details Copper alloys capable of spinodal decomposition and a method of Copper alloys capable of spinodal decomposition and a method of

1991-05-06

1993-03-23

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Treating consolidated metal powder, per se

148522, 148536, 148553, 148554, 148679, 148685, B22F 100

Patent

active

051960745

ABSTRACT:
A method is disclosed for manufacturing a finished product which consists at least partially of a copper nickel and tin based alloy which has undergone spinodal decomposition. A liquid bath of the Cu Ni Sn based alloy is prepared containing also titanium and possibly lead. A semi-finished product is formed by spray-deposition of this alloy onto a backing then transformed with an annealing stage followed by rapid tempering. The product obtained after transformation of the semi-finished product is subjected to a heat annealing treatment in order to carry out spinodal decomposition of the part of the said product which is constituted by Cu Ni Sn based alloy, to obtain a finished product. A semi-finished product or product is obtained by this method. Connectors and machinable products based on Cu Ni Sn and of high and homogeneous hardness are manufactured.

REFERENCES:
patent: 4373970 (1983-02-01), Scorey et al.
patent: 4525325 (1985-06-01), Livak

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