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
Corresponding AuthorQian, Guian(qianguian@imech.ac.cn) ; Hong, Youshi(hongys@imech.ac.cn)
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
2022-08-01
Volume161Pages:11
ISSN0142-1123
AbstractThe 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.
KeywordLoading intermittence Microstructure evolution Very-high-cycle fatigue Facet Slip system
DOI10.1016/j.ijfatigue.2022.106904
Indexed BySCI ; EI
Language英语
WOS IDWOS:000799351900003
WOS KeywordHIGH-STRENGTH STEELS ; CR-NI-STEELS ; GIGACYCLE FATIGUE ; DEFORMATION-BEHAVIOR ; PLASTIC-DEFORMATION ; INCLUSION ; REGIME ; SLIP ; NANOSTRUCTURE ; PROPAGATION
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
Funding ProjectNational 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
Funding OrganizationNational Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program
Classification一类
Ranking1
ContributorQian, Guian ; Hong, Youshi
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/89535
Collection非线性力学国家重点实验室
Affiliation1.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
Recommended Citation
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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