Effect of plastic working on martensitic phase transformation characteristics of TiNi alloys

被引：7
作者：
Kim, Seong-Woong [1 ]
Park, Chan Hee [1 ]
Kim, Jeoung Han [1 ,2 ]
Hong, Jae Keun [1 ]
Yeom, Jong-Taek [1 ]
机构：
[1] KIMS, Light Met Div, Chang Won 642831, South Korea
[2] Hanbat Natl Univ, Dept Adv Mat Engn, Taejon 305719, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 610卷
关键词：
TiNi alloy; Martensitic phase transformation; Multi-stage transformation; Plastic working; Transmission electron microscopy; SHAPE-MEMORY ALLOYS; NITI; BEHAVIOR;
D O I：
10.1016/j.jallcom.2014.04.205
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Effect of plastic working on martensitic phase transformation characteristics of TiNi wires was investigated. Ti-50.5 at.% Ni wire with a final diameter of 4.2 mm was produced by swaging and groove rolling processes. The wire exhibited multiple-stage martensitic phase transformation behavior after swaging and groove rolling processes followed by heat-treatment at 700 degrees C for 30 min. The multiple-stage martensitic phase transformation behavior was found to vary with different heat-treatment conditions as well as with the number of groove rolling processes. These results are discussed and possible mechanisms for multiple-stage martensitic phase transformation are proposed. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：315 / 321
页数：7
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