Effects of High Temperature ECAE Process on Microstructures and Martensitic Transformation of TiNi Shape Memory Alloy |
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| Journal | Materials Science Forum (Volumes 503 - 504) |
|---|---|
| Volume | Nanomaterials by Severe Plastic Deformation |
| Edited by | Zenji Horita |
| Pages | 1013-0 |
| DOI | 10.4028/www.scientific.net/MSF.503-504.1013 |
| Citation | Chao Ying Xie et al., 2006, Materials Science Forum, 503-504, 1013 |
| Online since | January, 2006 |
| Authors | Chao Ying Xie, Z.G. Fan, Z.H. Li, G.Q. Xiang, X.H. Cheng |
| Keywords | ECAE Process, Martensitic Transformation (MT), Microstructure, TiNi Shape Memory Alloy |
| Abstract | Microstructures and transformation behavior of TiNi shape memory alloy after high temperature ECAE process have been investigated. It is found that the initial coarse grains were refined after high temperature ECAE processes and short annealing at 750°C. Transformation temperatures of TiNi alloy sharply decreased after two ECAE processes, rose obviously when annealed at 750°C for 5min, and quickly rose back after annealing at 500°C for 2 hours. Reasons for phase transformation behavior changes have been discussed. |
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