| 爆炸合成NiTi／NiTi合金的相变行为 |
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| 引用本文： | 燕铸,崔立山,郑雁军.爆炸合成NiTi／NiTi合金的相变行为[J].功能材料,2007,38(A08):3215-3217. |
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| 作者姓名： | 燕铸 崔立山 郑雁军 |
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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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| 基金项目： | 国家自然科学基金资助项目（50471021）;高等学校博士学科点专项科研基金资助项目（20050425002） |
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| 摘 要： | 采用爆炸焊将两块原子百分比不同的NiTi合金制成大块成分不均匀的NiTi／NiTi复合板，并在此基础上对其相变行为以及相应的回复应变特征进行了研究。结果表明焊后的复合板具有良好的界面结合和可逆马氏体相变；冷变形后NiTi／NiTi合金的逆相变温度及其相变温度范围随预应变量的增大而升高；同时，在较宽的温度范围内得到两步回复应变。
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| 关 键 词： | NiTi 爆炸焊 马氏体相变 回复应变 |
| 文章编号： | 1001-9731（2007）增刊-3215-03 |
| 修稿时间： | 2007-04-09 |
Transformation behaviors of NiTi/NiTi alloys synthesized by explosive welding |
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| YAN Zhu, CUI Li-shan, ZHENG Yan-jun.Transformation behaviors of NiTi/NiTi alloys synthesized by explosive welding[J].Journal of Functional Materials,2007,38(A08):3215-3217. |
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| Authors: | YAN Zhu CUI Li-shan ZHENG Yan-jun |
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| Affiliation: | Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China |
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| Abstract: | The aim of this study was an initial attempt to prepare bulk NiTi/NiTi shape memory alloys with macroscopic heterogeneity in composition by explosive welding and investigate the transformation behavior and strain recovery characteristics of the resulting laminates. After explosive welding, a perfect interfacial bonding between the two components and a reversible rnartensitic transformation were obtained in the tandem. The DSC results showed that the reverse transformation temperatures and the temperature range of NiTi-NiTi alloys increased with increasing prestrain level. Meanwhile, a two-stage strain recovery in a wide temperature range was obtained. |
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| Keywords: | NiTi explosive welding martensitic transformation recovery strain |
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