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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.
2017-08-15
Source PublicationELSEVIER SCIENCE SA
ISSN0921-5093
Volume702Pages:259-264
AbstractFatigue 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.
description.department[liu, r. ; tian, y. z. ; zhang, z. j. ; zhang, p. ; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [liu, r. ; zhang, z. f.] univ chinese acad sci, 19 yuquan rd, beijing 100049, peoples r china
KeywordCu-al Alloy High-cycle Fatigue (Hcf) Fatigue Strength Fatigue Damage Localization Cold Rolling Recrystallization Microstructure Homogeneity
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51331007, 51501198]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79149
Collection中国科学院金属研究所
Corresponding AuthorTian, 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.
Recommended Citation
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.
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