PHASE TRANSFORMATIONS IN RAPIDLY SOLIDIFIED TINi SHAPE MEMORY ALLOYS

来源期刊：中国有色金属学报(英文版)1995年第1期

论文作者：Wang Shidong Wu Xiaozhen Jin Jialin

文章页码：63 - 66

Key words：solution treatment;shape memory alloy; R-phase transformation; martensitic trasformation rapid solidification

Abstract: The transformation behaviors assoeiated with R-phase and martensirie transformations inrapidly solidified TINi shape memory alloys have been studied systematieally using differential seanning calorimetry，X-raydiffraetion，ete .It was found that rapid solidifieation more signifieantly depresses the temperature ranges of R-phase and martensitc transformations than solutlon treatment and makes it possible that the martensite transformation 15 separated from R-phase transformation. After aging the rapidly solidified Ni-rich TINi binary shape memory alloy the martensite can be seperated from the R-phase in not only the forward but also reverse transformations. With increasing aging time both the forward and reverse transformation temperature range so fmartensite and R-phase