Process to produce and stabilize a reversible two-way shape memo

Details Process to produce and stabilize a reversible two-way shape memo Process to produce and stabilize a reversible two-way shape memo

1982-07-29

1983-11-22

Andrews, M. J.

Metal treatment

Compositions

Heat treating

148402, C21D 800

Patent

active

044167067

ABSTRACT:
Process to produce a reversible two-way shape memory effect in Cu-Al-Ni and Cu-Al memory alloys by heat treating said alloy while applying an external lead (G) after the martensite formation accomplished by the conventional steps: solution treatment, quench (1,2) and deformation (3). Additional improvements by optional Martensite Stabilization (10) and Two-way Effect Zero-point Stabilization (12) in the form of further heat treatments.

REFERENCES:
patent: 4019925 (1977-04-01), Nenno et al.

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