Material which is at least partially made from a constituent having a one-way shape memory effect and process to produce said material
US4518444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Jul 27, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12569
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.