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| Super-elastic of TiNiCr Shape Memory Alloys under Different Heat-treatment |
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| DOI：DOI：10.3969/j.issn.1007-7545.2011.06.006 |
| KeyWord:metal material; SMA; TiNiCr; super-elastic; heat-treatment; strengthening phase |
| Author | Institution |
| SI Nai-chao |
江苏大学 材料学院，江苏镇江 |
| WU Ying |
江苏大学 材料学院，江苏镇江 |
| SI Song-hai |
镇江忆诺唯记忆合金有限公司，江苏镇江 |
| ZHANG Zhi-min |
江苏大学 材料学院，江苏镇江 |
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| Abstract: |
| The super-elastic performance of TiNiCr shape memory alloy is investigated by using the WDW-10 Electronic Universal testing machines and XRD test. The results show that the super-elastic performance of the sample is remarkably influenced by the heat-treatment technology, and the elastic curves are different for the samples heat-treated with different temperatures. With the increase of heat-treatment temperature and retention time, the elastic property is firstly increased and then decreased. The completely super-elastic performance of the TiNiCr alloy can be achieved by heat-treatment at 430℃ for 10~20min. The strengthening phase Cr3Ni2 may be formed in the heat-treatment process, the quantity is the maximum of at 430℃ for 10~20min, then is reduced with the increase of the heat-treatment temperature and retention time. The best super-elastic performance is achieved at this case. |
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