IMR OpenIR
Short fatigue crack growth behavior in 18Ni marageing steel
Xu, Z. K.1,2; Wang, B.1; Zhang, P.1,2; Zhang, Z. F.1,2
Corresponding AuthorZhang, P.(pengzhang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
2021-03-11
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume807Pages:9
AbstractIn recent decades, it has been found that the fatigue crack growth rate could be slowed down by the zigzag crack growth path in some materials, but the mechanism was not well clarified. In this study, the effect of crack growth path on the fatigue crack growth rate of 18Ni maraging steel under three different heat treatment states was studied, and two factors influencing the fatigue crack growth rate were outlined. It was found that, firstly, the main factor affecting the fatigue crack growth rate was the strength of the material; secondly, the zigzag crack growth path did not slow down the crack growth rate but increased the crack growth rate. Therefore, a two-phase model was established to understand the influence of crack growth path on the growth rate. In different phases, their resistances to the crack growth are different, and the difference in the strength between the two phases determines whether the zigzag cracking path can depress the fatigue crack growth or not. Specifically, when the difference in the strength between the second phase and the matrix is greater than a certain value, the zigzag cracking path leads to the acceleration of fatigue crack growth. The consequences show that not all the zigzag crack propagation paths are beneficial for the higher fatigue cracking resistance, and the specific analysis should be combined with the material microstructure in detail.
KeywordMaraging steel Strength Short crack Fatigue crack propagation Zigzag path Lath martensite
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program ; Youth Innovation Promotion Association CAS ; China Postdoctoral Science Foundation
DOI10.1016/j.msea.2021.140844
Indexed BySCI
Languageen
Funding ProjectNational Natural Science Foundation of China (NSFC)[51771208] ; National Natural Science Foundation of China (NSFC)[U1664253] ; National Natural Science Foundation of China (NSFC)[52001310] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04040502] ; LiaoNing Revitalization Talents Program[XLYC1808027] ; Youth Innovation Promotion Association CAS[2018226] ; China Postdoctoral Science Foundation[2020M670810]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000623137600004
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161155
Collection中国科学院金属研究所
Corresponding AuthorZhang, P.; Zhang, Z. F.
Affiliation1.Chinese Acad Sci, Shichangxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Xu, Z. K.,Wang, B.,Zhang, P.,et al. Short fatigue crack growth behavior in 18Ni marageing steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,807:9.
APA Xu, Z. K.,Wang, B.,Zhang, P.,&Zhang, Z. F..(2021).Short fatigue crack growth behavior in 18Ni marageing steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,807,9.
MLA Xu, Z. K.,et al."Short fatigue crack growth behavior in 18Ni marageing steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 807(2021):9.
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