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力学进展 ›› 2018, Vol. 48 ›› Issue (1): 201802-201802.doi: 10.6052/1000-0992-17-008

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热致和磁致形状记忆合金循环变形和疲劳行为研究

康国政1, 2, †, 阚前华1, 2, 于超1, 2, 宋迪3   

  1. 1 西南交通大学牵引动力国家重点实验室, 成都 610031;
    2西南交通大学力学与工程学院应用力学与结构安全四川省重点实验室, 成都 610031;
    3 电子科技大学机电工程学院, 成都 611731
  • 收稿日期:2017-04-07 出版日期:2018-03-25 发布日期:2018-01-22
  • 作者简介:康国政,男,1969年8月出生,西南交通大学牵引动力国家重点实验室主任兼力学与工程学院院长、教授、博导,国家杰出青年基金获得者,教育部"长江学者"特聘教授,中组部"万人计划"科技创新领军人才,德国"洪堡基金会"高级访问学者,享受国务院政府特殊津贴专家,四川省学术与技术带头人.
  • 基金资助:

    致谢:国家自然科学基金重点项目资助(NSFC11532010)

Study on cyclic deformation and fatigue of thermal and magnetic shape memory alloys

KANG Guozheng1, 2, †, KAN Qianhua1, 2, YU Chao1, 2, SONG Di3   

  1. 1 State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China;
    2 Sichuan Provincial Key Laboratory of Applied Mechanics and Structure Safety, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China;
    3 School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
  • Received:2017-04-07 Online:2018-03-25 Published:2018-01-22

摘要:

形状记忆合金(包括热致和磁致形状记忆合金)由于其特有的超弹性和形状记忆效应, 一直以来受到学者和工程界人士广泛关注, 且已有诸多成功的工程应用案例.为了进一步拓展该类合金的工程应用范围, 对其热--力和磁--力耦合循环变形和疲劳失效行为的宏微观实验观察和理论模型研究成果进行了综述. 总结了NiTi和NiTiX两类合金材料的温度诱发(即热致)的热--力耦合循环变形和疲劳失效行为研究的最新成果; 对以NiMnGa合金为代表的磁场诱发(即磁致)的磁--力耦合循环变形和疲劳失效行为的研究现状进行了评述; 提出并预测了未来的研究方向及发展趋势.

关键词: 形状记忆合金, 循环变形, 疲劳, 宏微观层次, 实验研究, 理论模型

Abstract:

Shape memory alloys (SMAs), including the thermal and magnetic ones, have attracted wide attention from scholars and engineers, and have been successfully employed in many engineering applications due to their unique super-elasticity and shape memory effects. To further prompt the application fields of SMAs, the progresses in the microscopic and macroscopic experimental observations and theoretical studies on their thermo-mechanical and magneto-mechanical coupled cyclic deformation and fatigue failure are reviewed herein. The latest achievements on the thermo-mechanical coupled cyclic deformation and fatigue failure of the thermal (i.e., temperature-induced) SMAs including NiTi and high-temperature NiTiX ones are summarized. In addition, the research status on the magneto-mechanical coupled cyclic deformation and fatigue failure of the magnetic SMAs including NiMnGa ones are reviewed. Last, a brief summary and a prospect of future topics are provided.

Key words: shape memory alloy, cyclic deformation, fatigue failure, micro- and macro-scales, experimental observation, theoretical model

中图分类号: 

  • O344.3