Material which is at least partially made from a constituent hav

Details Material which is at least partially made from a constituent hav Material which is at least partially made from a constituent hav

1982-07-27

1985-05-21

Rutledge, L. Dewayne

Metal treatment

Stock

Mechanical memory

22826318, 204 371, 75246, 428615, 428616, 428617, 428618, 428625, 428626, 428548, 148 6, 148 38, C23C 900

Patent

active

045184445

ABSTRACT:
Material, in the form of bars, tubes, profiles, wires, sheets, or bands, which is, at least partially, composed of a constituent showing a one-way shape memory effect, and a further inactive constituent hindering the one-way effect of the first, and which collectively exhibits a significant two-way effect. The one-way shape memory constituent can be a Cu-Al-Ni, Cu-Al, TiV, Ti-Nb, Ni-Ti, or Ni-Ti-Cu alloy. Production of bi- or multi-constituent components by brazing, welding, roll bonding, extruding, powder metallurgical methods, hot isostatic pressing, or gluing, or by the application of metallic coatings (2) onto a core material (1) and subsequent diffusion treatment to produce an inactive surface layer (3).

REFERENCES:
patent: 3243211 (1960-03-01), Wetmore
patent: 3872573 (1975-03-01), Nichois et al.
patent: 4197880 (1980-04-01), Cordia
patent: 4310354 (1982-01-01), Fountain et al.
Encyclopedia of Chemical Technology, 3rd ed., vol. 20, 1982.

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