形状记忆合金及其复合材料的应用

形状记忆合金(SMA)是一种特殊的金属材料,具有独特的性能,即这种材料在变形后可以通过压力或温度的变化恢复到原来的形状。Ti-Ni SMA的成功发展始于20世纪60年代,随着SMA理论和应用研究的不断深入,SMA逐渐进入了实践阶段。目前,SMAs与其复合材料已广泛应用于航空航天、生物医学、机械电子等领域。文章简要回顾了SMA与其复合材料的应用,并对目前SMA研究中存在的问题进行了分析。

Shape memory alloy(SMA)is a special metal material with unique properties,that is,this material can return to its original shape through the change of pressure or temperature after deformation.The successful development of Ti-Ni SMA began in the 1960s.With the deepening of SMA theory and application research,SMA has gradually entered the practical stage.At present,SMAs and its composites have been widely used in aerospace,biomedical,mechanical and electronic and other fields.In this paper,the applications of SMA and its composites are briefly reviewed,and the problems existing in the research of SMA are prospected.