Process for the improved ductility of nitinol
US6106642A · kind A · utility
86Cited by
24References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Jun 2, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for treating nitinol so that desired mechanical properties are achieved. In one embodiment, the process comprises the steps of exposing the nitinol to a primary annealing temperature within the range of approximately 475.degree. C. to 525.degree. C. for a first time period, and thereafter exposing the nitinol to a secondary annealing temperature within the range of approximately 550.degree. C. to 800.degree. C. for a second time period. The invention also includes nitinol articles made by the process of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.