锆基形状记忆合金的研究进展  

Research progress of Zr-based shape memory alloys

作　　者：熊承阳 屈文涛[3] 李岩 XIONG Cheng-yang;QU Wen-tao;LI Yan(School of Mechanical and Electrical Engineering,Hubei Polytechnic University,Huangshi 435003,China;Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology,Beijing 100191,China;School of Mechanical Engineering,Xi’an Shiyou University,Xi’an 710065,China;School of Materials Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]湖北理工学院机电工程学院,湖北黄石435003 [2]特种功能材料与薄膜技术北京市重点实验室,北京100191 [3]西安石油大学机械工程学院,陕西西安710065 [4]北京航空航天大学材料科学与工程学院,北京100191

出　　处：《材料热处理学报》2022年第5期1-9,共9页Transactions of Materials and Heat Treatment

基　　金：国家自然科学基金(52071261,51831006);湖北理工学院人才引进项目(20xjz14R)。

摘　　要：Zr基形状记忆合金具有高的相变温度、大的形状记忆效应和低的磁化率等特点,逐渐受到研究者的关注,同时在航天、航空、能源和医疗等领域展现出良好的应用前景。Zr基形状记忆合金主要包括Zr-Cu基高温形状记忆合金和Zr-Nb基生物医用形状记忆合金。Zr-Cu基合金相变温度最高可达1000℃,最大形状记忆效应为6.87%,具有价格较低和易加工成形的优点。Zr-Nb基合金相比奥氏体不锈钢、CoCr合金和钛合金等医用植入材料具有更低的磁化率,有效避免了对核磁共振成像(MRI)影响,可以提高检测准确度。本文对近年来国内外关于Zr-Cu基和Zr-Nb基形状记忆合金的研究进展进行了综合评述,重点介绍了合金的微观结构、相变机制、形状记忆特性、力学性能、磁化特性和生物相容性,并提出了未来需要重点关注的研究方向。Zr-based shape memory alloys(SMAs) have the characteristics of high phase transition temperature, large shape memory effect(SME) and low magnetic susceptibility. They have gradually attracted the attention of researchers, and show good application prospects in aerospace, aviation, energy and biomedical fields. Zr-based shape memory alloys mainly include Zr-Cu based high temperature shape memory alloys and Zr-Nb-based biomedical shape memory alloys. The martensitic transformation start temperature of Zr-Cu based alloy can reach 1000 ℃, and the maximum shape memory effect is 6.87%. It has the advantages of low cost and easy processing. Compared with medical implant materials such as austenitic stainless steel, CoCr alloy and titanium alloy, Zr-Nb-based alloy has lower magnetic susceptibility, which can effectively avoid the impact on nuclear magnetic resonance imaging(MRI), and improve the detection accuracy. This paper reviews the research progress of Zr-Cu-based and Zr-Nb-based shape memory alloys at home and abroad in recent years, focuses on the microstructure, phase transformation mechanism, shape memory properties, mechanical properties, magnetic susceptibility and biocompatibility of the alloys, and puts forward the research directions that need to be paid more attention in the future.

关 键 词：锆合金 形状记忆效应 高温形状记忆合金 生物医用金属 

分 类 号：TG139.6[一般工业技术—材料科学与工程]