Nanoindentation/atomic force microscopy analyses of ε-martensitic transformation and shape memory effect in Fe-28Mn-6Si-5Cr alloy
Nanoindentation/atomic force microscopy analyses of ε-martensitic transformation and shape memory effect in Fe-28Mn-6Si-5Cr alloy
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DOI：
10.1016/j.scriptamat.2011.08.010
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发表时间：
2011-12-01
影响因子：
6
通讯作者：
Tsuzaki, K.
中科院分区：
文献类型：
--
作者：
Sekido, K.;Ohmura, T.;Tsuzaki, K.
采用纳米压痕法研究了Fe-28Mn-6Si-5Cr合金应力诱导的ε -马氏体相变行为和形状记忆效应。利用原子力显微镜测量了退火后缩进痕迹的体积变化，评价了形状记忆效应。利用纳米压痕获得的载荷-位移（P-h）数据，P/h与h曲线显示了两种类型的斜率，分别对应于ε -马氏体相变和滑移变形，并与形状恢复率相关。(C) 2011材料学报Elsevier Ltd.出版。版权所有。
Nanoindentation was conducted to investigate the stress-induced epsilon-martensitic transformation behavior and the shape memory effect in a Fe-28Mn-6Si-5Cr alloy. The shape memory effect was evaluated from the volume change in an indent mark caused by annealing measured by atomic force microscopy. Using the load-displacement (P-h) data obtained from nanoindentation, the plot of P/h vs. h showed two types of slopes, corresponding to the epsilon-martensitic transformation and slip deformation, and exhibited a correlation with the shape recovery ratio. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.