Microstructure evolution and very-high-cycle fatigue crack initiation behavior of a structural steel with two loading intermittence modes

doi:10.1016/j.ijfatigue.2022.106904

IMECH-IR > 非线性力学国家重点实验室

	Microstructure evolution and very-high-cycle fatigue crack initiation behavior of a structural steel with two loading intermittence modes
	Zhou YD(周亚东)1,2; Sun JY(孙经雨)1,2; Pan XN(潘向南)1,2; Qian GA(钱桂安)1,2 ; Hong YS(洪友士)1,2
通讯作者	Qian, Guian(qianguian@imech.ac.cn) ; Hong, Youshi(hongys@imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
	2022-08-01
卷号	161 页码:11
ISSN	0142-1123
摘要	The effects of fatigue loading intermittence on specimens manufactured on two locations in a railway wheel were experimentally investigated: (i) in the rim and (ii) web plate (WP). The specimens with 50 ms pause presented a substantially lower fatigue strength in comparison to those with 300 ms pause. The microstructure evolution indicated the occurrence of martensitic transformation and discontinuous dynamic recrystallization. Rim and WP show respective preference for crack initiation, i.e. inclusion or matrix. Slip on {1 1 0} and {1 1 2} plane families prevails in ferrite. The pearlitic lamellae aligned at 45 degrees relative to applied tension indicates that crack initiates and propagates along the ferrite-cementite interface due to stress concentration as a result of inhomogeneous deformation.
关键词	Loading intermittence Microstructure evolution Very-high-cycle fatigue Facet Slip system
DOI	10.1016/j.ijfatigue.2022.106904
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000799351900003
关键词[WOS]	HIGH-STRENGTH STEELS ; CR-NI-STEELS ; GIGACYCLE FATIGUE ; DEFORMATION-BEHAVIOR ; PLASTIC-DEFORMATION ; INCLUSION ; REGIME ; SLIP ; NANOSTRUCTURE ; PROPAGATION
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
资助项目	National Natural Science Foundation of China[11932020] ; National Natural Science Foundation of China[11872364] ; National Natural Science Foundation of China[12072345] ; CAS Pioneer Hundred Talents Program
项目资助者	National Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program
论文分区	一类
力学所作者排名	1
RpAuthor	Qian, Guian ; Hong, Youshi
引用统计	被引频次：11[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/311007/89535
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhou YD,Sun JY,Pan XN,et al. Microstructure evolution and very-high-cycle fatigue crack initiation behavior of a structural steel with two loading intermittence modes[J]. INTERNATIONAL JOURNAL OF FATIGUE,2022,161:11.
APA	周亚东,孙经雨,潘向南,钱桂安,&洪友士.(2022).Microstructure evolution and very-high-cycle fatigue crack initiation behavior of a structural steel with two loading intermittence modes.INTERNATIONAL JOURNAL OF FATIGUE,161,11.
MLA	周亚东,et al."Microstructure evolution and very-high-cycle fatigue crack initiation behavior of a structural steel with two loading intermittence modes".INTERNATIONAL JOURNAL OF FATIGUE 161(2022):11.

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