IMR OpenIR
A fast evaluation method for fatigue strength of maraging steel: The minimum strength principle
Xu, Z. K.1,2; Wang, B.2,3; Zhang, P.1,2,3; Zhang, Z. F.1,2,3
Corresponding AuthorZhang, P.(pengzhang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
2020-07-03
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume789Pages:12
AbstractThe relationship between fatigue strength and tensile properties has drawn widespread concern in recent decades. It is gradually recognized that the fatigue strength is dependent on the strength of the weakest zone in materials, while the regular tensile test could only obtain the global strength. The present study, for the first time, constructed a fast evaluation method, in which extremely slender specimens were employed. It is found that, when the specimen is slender enough, i.e., the soft oriented grain could occupy the whole section of the specimen, the strength of the soft domain could be related to the fatigue strength. In the 18Ni maraging steels, the fatigue crack would nucleate in the precipitate free zone (PFZ), which is the soft domain. Furthermore, the fatigue strength of fully reversed loading test nearly equals to the yield strength of the PFZ measured by the slender tensile test. This founding may shed light on the fast evaluation of fatigue strength, which could bring great economic benefits and save invaluable time.
KeywordMaraging steel Fatigue strength Fatigue crack initiation Yield behavior Deformation inhomogeneity
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program
DOI10.1016/j.msea.2020.139659
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51771208] ; National Natural Science Foundation of China (NSFC)[U1664253] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020202] ; LiaoNing Revitalization Talents Program[XLYC1808027]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000543423100018
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139513
Collection中国科学院金属研究所
Corresponding AuthorZhang, P.; Zhang, Z. F.
Affiliation1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China
3.Jihua Lab, Foshan 528200, Peoples R China
Recommended Citation
GB/T 7714
Xu, Z. K.,Wang, B.,Zhang, P.,et al. A fast evaluation method for fatigue strength of maraging steel: The minimum strength principle[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,789:12.
APA Xu, Z. K.,Wang, B.,Zhang, P.,&Zhang, Z. F..(2020).A fast evaluation method for fatigue strength of maraging steel: The minimum strength principle.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,789,12.
MLA Xu, Z. K.,et al."A fast evaluation method for fatigue strength of maraging steel: The minimum strength principle".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 789(2020):12.
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