| 预应变对铝基体中复合的TiNi合金丝马氏体逆相变的影响 |
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| 引用本文： | 高万夫.预应变对铝基体中复合的TiNi合金丝马氏体逆相变的影响[J].材料工程,2006(6):3-4,53. |
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| 作者姓名： | 高万夫 |
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| 作者单位： | 中国石油大学,材料科学与工程系,北京,102249 |
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| 摘 要： | 采用示差扫描热分析(DSC)、X射线衍射(XRD)和扫描电子显微分析(SEM)等方法,研究了预应变对铝基体中复合的TiNi形状记忆合金丝的马氏体逆相变的影响.结果表明,预应变的TiNi丝发生两种逆相变,一种是热致马氏体(TIM)的逆相变,另一种是应力诱发马氏体(SIM)的逆相变.预应变样品的TIM逆相变的起始温度与未预应变样品的基本相同.SIM逆相变的起始温度随预应变的增大而升高.TIM和SIM逆相变的分数随预应变的增大而减少.
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| 关 键 词： | 预应变 马氏体相变 TiNi合金 铝基复合材料 |
| 文章编号： | 1001-4381（2006）06-0003-02 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-02-202006-03-11 |
Effect of Prestrain on the Reverse Martensitic Transformation of TiNi Fibers Embedded in Al Matrix |
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| GAO Wan-fu.Effect of Prestrain on the Reverse Martensitic Transformation of TiNi Fibers Embedded in Al Matrix[J].Journal of Materials Engineering,2006(6):3-4,53. |
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| Authors: | GAO Wan-fu |
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| Affiliation: | Department of Materials Science and Engineering,China University of Petroleum, Beijing 102249, China |
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| Abstract: | The effect of prestrain on the reverse martensitic transformation of TiNi shape memory alloy fibers embedded in an Al matrix has been studied by differential scanning calorimeter(DSC),X-ray diffraction(XRD) and scanning electron microscope(SEM) methods.The results showed that two kinds of reverse transformation occurred in the TiNi fibers after prestrain.One was the reverse transformation of the thermal-induced martensite(TIM),and the other was that of the stress-induced martensite(SIM).The reverse transformation starting temperature of TIM in the prestrained specimen was identical to that in the un-prestrained specimen.The reverse transformation starting temperature of SIM increased with increasing prestrain.The fractions of TIM and SIM that participated in the reverse transformation decreased with increasing prestrain. |
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| Keywords: | prestrain reverse martensitic transformation TiNi alloy Al matrix composite |
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