Two-stage recovery strain of prestrained TiNi shape memory alloy after phase transformations under constraint |
| |
| Affiliation: | 1. State Key Laboratory of Heavy Oil Processing and Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China;2. X-ray Science Division, Argonne National Laboratory, Argonne, IL 60439, USA |
| |
| Abstract: | A two-stage strain recovery was observed in a TiNi alloy fiber, which had been prestrained and experienced a constraint heating and cooling cycle with a fixed strain constraint. The results of differential scanning calorimeter (DSC) measurements showed that after the thermomechanical process, the self-accommodation martensite in the TiNi alloy was divided into two sorts of martensite, the redeformed martensite and the inheriting deformation martensite. The first stage of the recovery strain vs. temperature curve corresponds to the transformation from the inheriting deformation martensite to parent, and the second one corresponds to the transformation from the redeformed martensite to parent. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
