Butterfly effect in low-cycle fatigue: Importance of microscopic damage mechanism

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	Butterfly effect in low-cycle fatigue: Importance of microscopic damage mechanism
	Shao, C. W.; Zhang, P.; Zhang, Z. J.; Zhang, Z. F.; Zhang, P; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
刊名	PERGAMON-ELSEVIER SCIENCE LTD
	2017-11-01
卷号	140 页码:76-81
关键词	High-mn Twip Steels Tension Low-cycle Fatigue Damage Mechanism Life Prediction
ISSN号	1359-6462
英文摘要	We report that materials with similar tensile properties can also exhibit quite different low-cycle fatigue (LCF) performances. Experimental results demonstrate that the LCF properties of twinning induced plasticity (TWIP) steels are naturally dominated by microscopic deformation mechanisms (mainly dislocation slip mode), which slightly influences the initial work hardening. However, such slight difference in the initial work hardening (the butterfly effect), corresponding to different damage mechanisms, accumulates and enlarges cycle by cycle during fatigue, finally leading to wide variations in cyclic stress response and fatigue life. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.; We report that materials with similar tensile properties can also exhibit quite different low-cycle fatigue (LCF) performances. Experimental results demonstrate that the LCF properties of twinning induced plasticity (TWIP) steels are naturally dominated by microscopic deformation mechanisms (mainly dislocation slip mode), which slightly influences the initial work hardening. However, such slight difference in the initial work hardening (the butterfly effect), corresponding to different damage mechanisms, accumulates and enlarges cycle by cycle during fatigue, finally leading to wide variations in cyclic stress response and fatigue life. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	National Natural Science Foundation of China (NSFC) [51301179, 51331007, 51501198, U1664253]; Shenyang National Laboratory for Materials Science [2017FP24]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79027]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, P; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Shao, C. W.,Zhang, P.,Zhang, Z. J.,et al. Butterfly effect in low-cycle fatigue: Importance of microscopic damage mechanism[J]. PERGAMON-ELSEVIER SCIENCE LTD,2017,140:76-81.
APA	Shao, C. W.,Zhang, P.,Zhang, Z. J.,Zhang, Z. F.,Zhang, P,&Zhang, ZF .(2017).Butterfly effect in low-cycle fatigue: Importance of microscopic damage mechanism.PERGAMON-ELSEVIER SCIENCE LTD,140,76-81.
MLA	Shao, C. W.,et al."Butterfly effect in low-cycle fatigue: Importance of microscopic damage mechanism".PERGAMON-ELSEVIER SCIENCE LTD 140(2017):76-81.