A new view on transformation induced plasticity (TRIP)

A new view on transformation induced plasticity (TRIP)
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DOI:
10.1016/s0749-6419(99)00078-9
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发表时间:
2000-01-01
影响因子:
9.8
通讯作者:
Antretter, T
Antretter, T
中科院分区:
材料科学1区
文献类型:
--
作者:
Fischer, FD;Reisner, G;Antretter, T

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从实验和理论两方面对钢的相变诱发塑性(TRIP)现象进行了重新研究。不可逆长度变化(TRIP应变)不仅包括塑性贡献(“Greenwood-Johnson”效应),而且还包括由于马氏体变体的相变剪切分量引起的长度变化(取向效应或“Magee”效应)的贡献。这种取向效应,这是完全接受的形状记忆合金,解释了钢。微观力学研究有助于量化取向效应。最后提出了一种改进的弹塑性相变材料本构关系的建议。(C)2000由爱思唯尔科学有限公司出版。版权所有。
The phenomenon of transformation induced plasticity (TRIP) in steel is reinvestigated both experimentally and theoretically. The irreversible length change (TRIP strain) consists not only of a plastic contribution ("Greenwood-Johnson" effect) but also of a contribution due to the length change caused by the transformation shear component of the martensitic variants (orientation effect or "Magee" effect). This orientation effect, which is fully accepted for shape memory alloys, is explained for steels. Micromechanical investigations help to quantify the orientation effect. Finally a proposal for a modified constitutive law for elastic plastic phase changing materials is presented. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.