Fatigue strength plateau induced by microstructure inhomogeneity

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	Fatigue strength plateau induced by microstructure inhomogeneity
	Liu, R.; Tian, Y. Z.; Zhang, Z. J.; Zhang, P.; Zhang, Z. F.; Tian, YZ; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China.
刊名	ELSEVIER SCIENCE SA
	2017-08-15
卷号	702 页码:259-264
关键词	Cu-al Alloy High-cycle Fatigue (Hcf) Fatigue Strength Fatigue Damage Localization Cold Rolling Recrystallization Microstructure Homogeneity
ISSN号	0921-5093
英文摘要	Fatigue damage localization is a critical problem which greatly impacts on the fatigue strength improvement. As a main cause of fatigue damage concentration, the microstructure inhomogeneity of cold-rolled and annealed Cu-5at%Al alloy has been paid much attention in this study. A notable plateau with constant fatigue strength is discovered in the region of partially recrystallized microstructures which share similar maximum grain size. The existence of such "fatigue strength plateau" suggests that in some specific cases, fatigue strength would vary with neither the tensile strength nor the average grain size, since the fatigue resistance of the damage localized regions remains unchanged.; Fatigue damage localization is a critical problem which greatly impacts on the fatigue strength improvement. As a main cause of fatigue damage concentration, the microstructure inhomogeneity of cold-rolled and annealed Cu-5at%Al alloy has been paid much attention in this study. A notable plateau with constant fatigue strength is discovered in the region of partially recrystallized microstructures which share similar maximum grain size. The existence of such "fatigue strength plateau" suggests that in some specific cases, fatigue strength would vary with neither the tensile strength nor the average grain size, since the fatigue resistance of the damage localized regions remains unchanged.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	National Natural Science Foundation of China (NSFC) [51331007, 51501198]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79149]
专题	金属研究所_中国科学院金属研究所
通讯作者	Tian, YZ; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China.
推荐引用方式 GB/T 7714	Liu, R.,Tian, Y. Z.,Zhang, Z. J.,et al. Fatigue strength plateau induced by microstructure inhomogeneity[J]. ELSEVIER SCIENCE SA,2017,702:259-264.
APA	Liu, R..,Tian, Y. Z..,Zhang, Z. J..,Zhang, P..,Zhang, Z. F..,...&Zhang, ZF .(2017).Fatigue strength plateau induced by microstructure inhomogeneity.ELSEVIER SCIENCE SA,702,259-264.
MLA	Liu, R.,et al."Fatigue strength plateau induced by microstructure inhomogeneity".ELSEVIER SCIENCE SA 702(2017):259-264.