Method of producing a memory alloy

Details Method of producing a memory alloy Method of producing a memory alloy

1981-03-02

1982-12-28

Straub, Gary P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Post sintering operation

148402, 75247, 419 44, C22C 901, B22F 100

Patent

active

043659969

ABSTRACT:
Cu/Al and Cu/Al/Ni memory alloys having improved mechanical properties are prepared by powder metallurgy from mixtures of pre-alloyed and/or pre-mixed powder ingredients. The mixture of powder ingredients is subjected successively to isostatic pressing, sintering in an inert atmospheric and subsequent multi-step hot working with intermediate annealing which serves to homogenize. Final annealing is carried out in the .beta.-phase solid solution temperature range and the annealed article is quenched in water.

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patent: 3091527 (1963-05-01), Pollock
patent: 3117002 (1964-01-01), Klement
patent: 3333950 (1967-08-01), Hill
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patent: 4113475 (1978-09-01), Smith
patent: 4310354 (1982-01-01), Fountain et al.

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