MARTENSITE AND REVERSE TRANSFORMATION IN PRE-STRAINED TiNi SHAPE MEMORY ALLOY THIN FILM

作     者：X.P.Liu M.Z.Cao R.Yang 

作者机构：Institute of Metal Research The Chinese Academy of Sicences Shenyang 110016 ChinaInstitute of Metal Research The Chinese Academy of Sicences Shenyang 110016 ChinaInstitute of Metal Research The Chinese Academy of Sicences Shenyang 110016 China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2003年第16卷第3期

页      面：221-225页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：shape memory alloy TiNi film pre-strain phase transformation 

摘      要：The effect of pre-strain on phase transformation of TiNi shape memory alloy film was studied by differential scanning calorimeter measurement (DSC). Compared with un-defarmed TiNi film, the reverse transformation of pre-strained specimens was elevated to a higher temperature on the first heating, but martensite and reverse transformation on subsequent thermal cycles occurred at a lower temperature. The evolution of transformation behavior in pre-strained TiNi film was related to the change of elastic strain energy, irreversible energy and internal stress field.