On the stress state dependence of the twinning rate and work hardening in twinning-induced plasticity steels

被引：63
|
作者：
Renard, K. [1 ]
Idrissi, H. [2 ]
Schryvers, D. [2 ]
Jacques, P. J. [1 ]
机构：
[1] Catholic Univ Louvain, Inst Mech Mat & Civil Engn, IMAP, B-1348 Louvain, Belgium
[2] Univ Antwerp, EMAT, Dept Phys, B-2020 Antwerp, Belgium
来源：
SCRIPTA MATERIALIA | 2012年 / 66卷 / 12期
关键词：
Steels; Twinning; Work hardening; Microscopy; STACKING-FAULT ENERGY; ASSISTED MULTIPHASE STEELS; FE-MN; MULTISCALE MECHANICS; DEFORMATION; TRANSFORMATION; BEHAVIOR; PHASE;
D O I：
10.1016/j.scriptamat.2012.01.063
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of the stress state on the twinning rate and work hardening is studied in the case of an Fe-Mn-C TWIP steel strained in uniaxial tension, simple shear and rolling. The resulting stress-strain responses exhibit marked differences. The twinning rate, number of activated twinning systems in each grain, twin thickness and transmission of twins across grain boundaries are dependent on the imposed stress state during straining. Relationships between twin features and macroscopic work hardening rate are established. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：966 / 971
页数：6
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