Mechanism of reversible transformation-induced plasticity of Fe-Mn-Si shape memory alloys

被引：93
|
作者：
Sawaguchi, Takahiro [1 ]
Bujoreanu, Leandru-Gheorghe [2 ]
Kikuchi, Takehiko [1 ]
Ogawa, Kazuyuki [1 ]
Koyama, Motomichi [1 ,3 ]
Murakami, Masato [3 ]
机构：
[1] Natl Inst Mat Sci, Innovat Mat Engn Lab, Tsukuba, Ibaraki 3050047, Japan
[2] Gh Asachi Tech Univ Iasi, Fac Mat Sci & Engn, Iasi 700050, Romania
[3] Shibaura Inst Technol, Tokyo 1358548, Japan
来源：
SCRIPTA MATERIALIA | 2008年 / 59卷 / 08期
基金：
日本学术振兴会;
关键词：
shape memory alloy; martensitic phase transformation; damping; atomic force microscopy (AFM); reversible transformation-induced plasticity;
D O I：
10.1016/j.scriptamat.2008.06.030
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The mechanism of reversible transformation-induced plasticity of an Fe-30Mn-6Si (mass %) shape memory alloy, under tensile stress and subsequent compression, has been observed by optical and atomic force microscopy. The tensile stress-induced epsilon (hexagonal close-packed) martensite reverts into gamma (face-centered cubic) austenite after compression to zero strain. Further compression to negative strains induces a different epsilon martensite variant from that of the tensile-stress-induced a martensite. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：826 / 829
页数：4
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