High-cycle fatigue behavior of TWIP steel with graded grains: breaking the rule of mixture

doi:10.1080/21663831.2018.1550822

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	High-cycle fatigue behavior of TWIP steel with graded grains: breaking the rule of mixture
	Shao, C. W.; Zhang, P.; Wang, X. G.; Wang, Q.; Zhang, Z. F.
刊名	MATERIALS RESEARCH LETTERS
	2019
卷号	7 期号:1 页码:26-32
关键词	TWIP steel T & A treatment graded grain fatigue strength high-cycle fatigue
ISSN号	2166-3831
DOI	10.1080/21663831.2018.1550822
通讯作者	Zhang, Z. F.(zhfzhang@imr.ac.cn)
英文摘要	We report a method, named as T & A treatment, to improve the high-cycle fatigue (HCF) property of twinning-induced plasticity (TWIP) steel without sacrificing its ductility and work-hardening ability. A long-range gradient in grain size was obtained in the TWIP steel, whose HCF resistance is better than both coarse-grain and fine-grain steels, breaking the rule of mixture. The surprising HCF property of the graded grain structure is believed to originate from the large generation of geometrically necessary dislocations and the formation of hard core and soft shell construction during cyclic loading. IMPACT STATEMENTA new strategy, refers to long-range gradient in grain size, is proposed to improve the HCF property of TWIP steel. The graded structure exhibits better fatigue resistance than single unit. [GRAPHICS]
资助项目	National Natural Science Foundation of China[51331007] ; National Natural Science Foundation of China[51501198] ; National Natural Science Foundation of China[51771208] ; National Natural Science Foundation of China[51801216] ; National Natural Science Foundation of China[U1664253]
WOS研究方向	Materials Science
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000463802000004
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132781]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Z. F.
作者单位	Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Shao, C. W.,Zhang, P.,Wang, X. G.,et al. High-cycle fatigue behavior of TWIP steel with graded grains: breaking the rule of mixture[J]. MATERIALS RESEARCH LETTERS,2019,7(1):26-32.
APA	Shao, C. W.,Zhang, P.,Wang, X. G.,Wang, Q.,&Zhang, Z. F..(2019).High-cycle fatigue behavior of TWIP steel with graded grains: breaking the rule of mixture.MATERIALS RESEARCH LETTERS,7(1),26-32.
MLA	Shao, C. W.,et al."High-cycle fatigue behavior of TWIP steel with graded grains: breaking the rule of mixture".MATERIALS RESEARCH LETTERS 7.1(2019):26-32.