A fast evaluation method for fatigue strength of maraging steel: The minimum strength principle

doi:10.1016/j.msea.2020.139659

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
通讯作者	Zhang, P.(pengzhang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2020-07-03
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	789 页码:12
摘要	The 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.
关键词	Maraging steel Fatigue strength Fatigue crack initiation Yield behavior Deformation inhomogeneity
资助者	National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program
DOI	10.1016/j.msea.2020.139659
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000543423100018
出版者	ELSEVIER SCIENCE SA
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://ir.imr.ac.cn/handle/321006/139513
专题	中国科学院金属研究所
通讯作者	Zhang, P.; Zhang, Z. F.
作者单位	1.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
推荐引用方式 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.