The respective hardening contributions of dislocations and twins to the flow stress of a twinning-induced plasticity steel

被引：174
|
作者：
Liang, Z. Y.
Li, Y. Z.
Huang, M. X. [1 ]
机构：
[1] Univ Hong Kong, Shenzhen Inst Res & Innovat, Shenzhen, Peoples R China
来源：
SCRIPTA MATERIALIA | 2016年 / 112卷
关键词：
TWIP steel; Twin; Dislocation density; Synchrotron X-ray diffraction; STACKING-FAULT ENERGY; DEFORMATION; MECHANISMS; EVOLUTION; KINETICS;
D O I：
10.1016/j.scriptamat.2015.09.003
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Deformation twins in twinning-induced plasticity (TWIP) steels have been considered in the literature as the source of back stress and kinematic hardening, which contribute considerably to the flow stress. Nevertheless, it is demonstrated in the present work that the contribution of twins to the flow stress is limited. Instead, dislocations, via forest hardening, account for up to similar to 90% of the flow stress increment after yielding in the present TWIP steel. In other words, dislocation evolution dominates the work-hardening rate of TWIP steels. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：28 / 31
页数：4
相关论文
共 50 条
  • [1] Evolution of dislocations and twins in high cycle fatigue of a twinning-induced plasticity steel
    Wang, X.
    Liang, Z. Y.
    Liu, R. D.
    Huang, M. X.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 647 : 249 - 255
  • [2] Strain rate sensitivity and evolution of dislocations and twins in a twinning-induced plasticity steel
    Liang, Z. Y.
    Wang, X.
    Huang, W.
    Huang, M. X.
    [J]. ACTA MATERIALIA, 2015, 88 : 170 - 179
  • [3] Effect of Stress States on Twinning Behavior in Twinning-Induced Plasticity Steel
    Hwang, Joong-Ki
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2019, 28 (08) : 4811 - 4825
  • [4] Effect of Stress States on Twinning Behavior in Twinning-Induced Plasticity Steel
    Joong-Ki Hwang
    [J]. Journal of Materials Engineering and Performance, 2019, 28 : 4811 - 4825
  • [5] On the stress state dependence of the twinning rate and work hardening in twinning-induced plasticity steels
    Renard, K.
    Idrissi, H.
    Schryvers, D.
    Jacques, P. J.
    [J]. SCRIPTA MATERIALIA, 2012, 66 (12) : 966 - 971
  • [6] Suppression of dislocations at high strain rate deformation in a twinning-induced plasticity steel
    Liang, Z. Y.
    Huang, W.
    Huang, M. X.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 628 : 84 - 88
  • [7] On the deformation twinning mechanisms in twinning-induced plasticity steel
    Kim, Jin-Kyung
    Kwon, Min-Hyeok
    De Cooman, Bruno C.
    [J]. ACTA MATERIALIA, 2017, 141 : 444 - 455
  • [8] Strain-hardening of twinning-induced plasticity steels
    Bouaziz, O.
    [J]. SCRIPTA MATERIALIA, 2012, 66 (12) : 982 - 985
  • [9] Revisit the role of deformation twins on the work-hardening behaviour of twinning-induced plasticity steels
    Luo, Z. C.
    Huang, M. X.
    [J]. SCRIPTA MATERIALIA, 2018, 142 : 28 - 31
  • [10] Hole expansion of twinning-induced plasticity steel
    Xu, Le
    Barlat, Frederic
    Lee, Myoung-Gyu
    [J]. SCRIPTA MATERIALIA, 2012, 66 (12) : 1012 - 1017
12345