高性能β型Ti-Nb基形状记忆合金研究进展  

Research progress of β type Ti-Nb-based shape memory alloys with high performances

作　　者：魏金 尚勇 刘仲礼 冯欣欣 衣晓洋 WEI Jin;SHANG Yong;LIU Zhongli;FENG Xinxin;YI Xiaoyang(China Railway Engineering Equipment Group Tunnel Equipment Manufacturing Co.,Ltd.,Xinxiang 453011,Henan,China;College of Nuclear Equipment and Nuclear Engineering,Yantai University,Yantai 264005,Shandong,China)

机构地区：[1]中铁工程装备集团隧道设备制造有限公司,河南新乡453011 [2]烟台大学核装备与核工程学院,山东烟台264005

出　　处：《有色金属科学与工程》2025年第2期230-244,共15页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金资助项目(52101231)。

摘　　要：β型Ti-Nb基形状记忆合金因兼备良好的冷热加工性能、较低的弹性模量、较高的耐蚀性、优异的生物相容性以及较好的形状记忆效应与超弹性而逐渐成为生物医用领域的研究热点。然而,传统β型Ti-Nb基记忆合金的超弹应变较低,远低于现阶段商用生物医用Ti-Ni二元合金,这限制了其在生物医用领域的应用。为了进一步促进β型Ti-Nb基记忆合金在生物医用领域的实际应用,目前主要是采取微观组织结构调控与合金化等手段改善其超弹性行为。本文重点阐述了现阶段所采取的措施与微观组织结构、马氏体相变及超弹性间的内在联系,揭示改善超弹性的物理本质。同时,对生物医用β型Ti-Nb基记忆合金的力学性能、耐磨耐蚀性以及生物相容性进行了简单回顾。最后,展望了β型Ti-Nb基记忆合金在未来研究过程中需要突破的重点与难点。The β-type Ti-Nb-based shape memory alloys have garnered significant attention in biomedical research due to their exceptional cold and hot working properties,low elastic modulus,high corrosion resistance,excellent biocompatibility,and remarkable shape memory effect and superelasticity.However,the superelasticity strain of conventional β-type Ti-Nb-based shape memory alloys is much lower than that of commercially biomedical binary Ti-Ni shape memory alloys,which poses a significant challenge to their application in the biomedical field.To further promote the practical application of β-type Ti-Nb based shape memory alloys in the biomedical field,microstructure engineering and alloying have been adopted to enhance their superelasticity behavior.The present study provided an in-depth analysis of the intrinsic relationships between the current measures and microstructure,martensitic transformation behaviors,superelasticity,and the physical mechanisms underlying the improvement of superelasticity.Meanwhile,the mechanical properties,wear resistance,corrosion resistance and biocompatibility of biomedical β-Ti-Nb memory alloy were also reviewed.Finally,the present paper outlined the key and challenging problems that need to be addressed in future research on β-type Ti-Nb-based shape memory alloys.

关 键 词：形状记忆合金 β型Ti-Nb基合金 微观组织结构 马氏体相变 超弹性 

分 类 号：TG139[一般工业技术—材料科学与工程]