A crystal plasticity model for twinning- and transformation-induced plasticity
A crystal plasticity model for twinning- and transformation-induced plasticity
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DOI：
10.1016/j.actamat.2016.07.032
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发表时间：
2016-10-01
期刊：
影响因子：
9.4
通讯作者：
Raabe, Dierk
中科院分区：
文献类型：
--
作者：
Wong, Su Leen;Madivala, Manjunatha;Raabe, Dierk
提出了一种基于位错密度的晶体塑性模型，该模型同时考虑了相变诱导塑性(TRIP)和孪生诱导塑性(TWIP)。该方法是一个基于物理的模型，反映了高锰钢中的表马氏体、孪晶和位错结构的微观组织研究。用TRIP/TwIP Fe-22Mn-0.6C钢的实验数据对模型进行了验证。该模型能够根据层错能的差异来预测不同温度下TRIP和/或TWIP变形机制的激活。(C)2016 Acta Materialia Inc.由爱思唯尔有限公司出版。版权所有。
A dislocation density-based crystal plasticity model incorporating both transformation-induced plasticity (TRIP) and twinning-induced plasticity (TWIP) is presented. The approach is a physically-based model which reflects microstructure investigations of epsilon-martenSite, twins and dislocation structures in high manganese steels. Validation of the model was conducted using experimental data for a TRIP/TWIP Fe-22Mn-0.6C steel. The model is able to predict, based on the difference in the stacking fault energies, the activation of TRIP and/or TWIP deformation mechanisms at different temperatures. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.