Shape memory alloy treatment
US5843244A · kind A · utility
154Cited by
1References
8Claims
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Key dates
| Filing date | Jun 13, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Jun 13, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/82
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of treating a component formed from a Ni--Ti based shape memory alloy, so that the component exhibits superelasticity, comprises cold working the component, annealing the alloy while the component is restrained in the configuration resulting from the cold working step, and exposing the component to a temperature that is less than the solvus temperature of the alloy and greater than the temperature to which it is exposed in the annealing step to cause the A.sub.f temperature to be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.