| R相变对双向记忆效应的影响研究 |
| |
| 引用本文： | 封向东,余华军,周继萌,鲍军委,王治国. R相变对双向记忆效应的影响研究[J]. 四川大学学报(自然科学版), 2004, 41(5): 998-1002 |
| |
| 作者姓名： | 封向东 余华军 周继萌 鲍军委 王治国 |
| |
| 作者单位： | 1. 四川大学物理科学与技术学院,成都,610064
2. 电子科技大学应用物理系,成都,610054 |
| |
| 基金项目： | 中国工程物理研究院院外基金(99040536) |
| |
| 摘 要： | 作者利用电阻法和伸长率一温度曲线的测试，研究了R相变和马氏体相变对TiNi记忆合金双向记忆效应(TWSME)的贡献，并研究了热机械训练对相变特征的影响．研究结果表明，热机械训练可导致降温时R相的出现，并且R相变对双向记忆效应的贡献远大于马氏体相变的贡献．在双向记忆效应训练过程中，由于位错的引入，能引起相变点Ms，Mf，Rs，As和Af的下降。
|
| 关 键 词： | TiNi形状记忆合金 双向记忆效应 R相变 热机械训练 |
| 文章编号： | 0490-6756(2004)05-0998-05 |
Investigation of the Contribution of R-phase Transformation on the Two-way Shape Memory Effect |
| |
| FENG Xiang-dong,YU Hua-jun,ZHOU Ji-meng,BAO Jun-wei,WANG Zhi-guo. Investigation of the Contribution of R-phase Transformation on the Two-way Shape Memory Effect[J]. Journal of Sichuan University (Natural Science Edition), 2004, 41(5): 998-1002 |
| |
| Authors: | FENG Xiang-dong YU Hua-jun ZHOU Ji-meng BAO Jun-wei WANG Zhi-guo |
| |
| Affiliation: | FENG Xiang-dong~1,YU Hua-jun~2,ZHOU Ji-meng~1,BAO Jun-wei~1,WANG Zhi-guo~2 |
| |
| Abstract: | Electrical resistance measurement and elongation-temperature measurement were used to study the contribution of R-phase and martensitic phase transformation to the two-way shape memory effect. And the effect of thermo-mechanical training on the transformation characteristics was also studied. The results showed that thermo-mechanical training results in the occurrence of R-phase transformation. The R-phase transformation yields a large part of the TWSME. The transformation temperatures of inverse martensitic, martensitic and R-phase transformation temperatures decreased with increasing thermo-mechanical training cycles, which was attributed to the dislocations introduced into the TiNi Shape memory alloys. |
| |
| Keywords: | TiNi shape memory alloy two-way shape memory effect R-phase transformation thermo-mechanical training |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
