Fatigue crack growth behavior in gradient microstructure of hardened surface layer for an axle steel

doi:10.1016/j.msea.2017.05.104

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	Fatigue crack growth behavior in gradient microstructure of hardened surface layer for an axle steel
	Zhang, Shijia; Xie JJ(谢季佳); Jiang, Qingqing; Zhang, Xiaole; Sun CQ(孙成奇); Hong YS(洪友士); Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2017-07-17
卷号	700 页码:66-74
ISSN	0921-5093
摘要	This paper experimentally investigated the behavior of fatigue crack growth of an axle steel with a surface strengthened gradient microstructure layer. First, the microstructure, residual stress and mechanical properties were examined as a function of depth from surface. Then the fatigue crack growth rate was measured via three point bending fatigue testing. The results indicated that fatigue crack growth rate decelerated first and then accelerated with the increase of crack length within the gradient layer. Especially, the fatigue crack was arrested in the gradient layer under relatively low stress amplitude due to the increase of threshold value for crack growth within the range of 3 mm from surface. Based on these results, the parameters of Paris equation and the threshold value of stress intensity factor range within the gradient layer were determined and a curved surface was constructed to correlate crack growth rate with stress intensity factor range and the depth from surface. The effects of microstructure, residual stress and surface notch on the crack growth behavior were also discussed.
关键词	Fatigue Crack Growth Surface Strengthening Gradient Microstructure Residual Stress Crack Arrest
DOI	10.1016/j.msea.2017.05.104
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000406564300009
关键词[WOS]	HIGH-CYCLE FATIGUE ; AUSTENITIC STAINLESS-STEEL ; RESIDUAL-STRESSES ; ALUMINUM-ALLOY ; ASPECT RATIO ; GRAIN-SIZE ; STRENGTH ; RESISTANCE ; CARBURIZATION ; PROPAGATION
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	National Natural Science Foundation of China(11572325) ; Chinese Academy of Sciences(XDB22040503 ; XDB22020201)
课题组名称	LNM实验平台 ; LNM微结构计算力学
论文分区	一类
力学所作者排名	1
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/70056
专题	非线性力学国家重点实验室
通讯作者	Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Shijia,Xie JJ,Jiang, Qingqing,et al. Fatigue crack growth behavior in gradient microstructure of hardened surface layer for an axle steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,700:66-74.
APA	Zhang, Shijia.,谢季佳.,Jiang, Qingqing.,Zhang, Xiaole.,孙成奇.,...&Hong, YS .(2017).Fatigue crack growth behavior in gradient microstructure of hardened surface layer for an axle steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,700,66-74.
MLA	Zhang, Shijia,et al."Fatigue crack growth behavior in gradient microstructure of hardened surface layer for an axle steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 700(2017):66-74.

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