Some aspects of the cyclic behavior of twinning-induced plasticity steels

被引：36
作者：
Karjalainen, L. Pentti [1 ]
Hamada, Atef [1 ]
Misra, R. Devesh K. [2 ]
Porter, David A. [1 ]
机构：
[1] Univ Oulu, Ctr Adv Steels Res, FI-90014 Oulu, Finland
[2] Univ Louisiana Lafayette, Ctr Struct & Funct Mat, Lafayette, LA 70504 USA
来源：
SCRIPTA MATERIALIA | 2012年 / 66卷 / 12期
关键词：
Twinning-induced plasticity steels; Fatigue; Dislocation structure; Twinning; Transmission electron microscopy (TEM); STACKING-FAULT ENERGY; 316L STAINLESS-STEEL; MN TWIP STEELS; FATIGUE BEHAVIOR; FE-MN; AUSTENITIC STAINLESS; DEFORMATION-BEHAVIOR; ALLOYS; ORIENTATION; CRACKS;
D O I：
10.1016/j.scriptamat.2011.12.008
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Aspects of the mechanical behavior and microstructure evolution during the cyclic loading of twinning-induced plasticity steels are considered in order to provide deeper insights into their good fatigue strength. Experiments on an Fe-0.3C-16Mn-1.5Al steel in the high-cycle fatigue regime have demonstrated the beneficial influence of grain refinement. In the presence of a large grain size, cyclic loading is found to lead to the generation of twins in addition to extended dislocations and planar dislocation arrays. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：1034 / 1039
页数：6
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