| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method by which two way memory effect can simply be obtained by utilizing an ordinary production process for TiNi shape memory alloy wire without performing other complicated treatment. SOLUTION: In the method of producing TiNi based shape memory alloy wherein dissolution casting, hot working, swaging, intermediate annealing and cold working are performed, the working quantity in the final cold working is controlled to 15 to 35%, and thereafter, a short time heat treatment is carried out at an inverse transformation finishing temperature Af or higher, so that the two way shape memory alloy wire is produced. COPYRIGHT: (C)2004,JPO
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