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

CORC > 力学研究所 > 中国科学院力学研究所 > 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, Yadong 1,2; Sun, Jingyu 1,2; Pan, Xiangnan 1,2; Qian, Guian 1,2; Hong, Youshi 1,2
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2022-08-01
卷号	161 页码:11
关键词	Loading intermittence Microstructure evolution Very-high-cycle fatigue Facet Slip system
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2022.106904
通讯作者	Qian, Guian(qianguian@imech.ac.cn) ; Hong, Youshi(hongys@imech.ac.cn)
英文摘要	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.
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
WOS关键词	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
语种	英语
WOS记录号	WOS:000799351900003
资助机构	National Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89534]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Qian, Guian; Hong, Youshi
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Yadong,Sun, Jingyu,Pan, Xiangnan,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	Zhou, Yadong,Sun, Jingyu,Pan, Xiangnan,Qian, Guian,&Hong, Youshi.(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	Zhou, Yadong,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.