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Improved high cycle fatigue property of ultrafine grained pure aluminum
Wang, B. B.1,2; Wu, L. H.2; Xue, P.2; Ni, D. R.2; Xiao, B. L.2; Liu, Y. D.1; Ma, Z. Y.2
Corresponding AuthorXue, P.(pxue@imr.ac.cn) ; Liu, Y. D.(ydliu@mail.neu.edu.cn)
2020-10-15
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume277Pages:4
AbstractUltrafine-grained (UFG) pure Al with uniform and stable microstructure produced by friction stir processing (FSP) significantly increased the high-cycle fatigue (HCF) strength compared with coarse-grained and other UFG materials prepared by severe plastic deformation (SPD). There was no obvious surface damage for FSP-UFG pure Al and the improved fatigue damage resistance can be attributed to the uniform microstructure and high microstructural stability. The ring-island stress distribution of FSP-UFG impeded the formation of large-scale shear bands, and enhanced the coordinated deformation during cyclic deformation. In addition to the enhanced tensile strength, increasing the fatigue strength exponent, which is decided by the microstructural stability, is also an effective method of improving the fatigue strength. (C) 2020 Elsevier B.V. All rights reserved.
KeywordFriction stir processing Ultrafine-grained Al Metals and alloys Microstructure Fatigue
Funding OrganizationYouth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China
DOI10.1016/j.matlet.2020.128289
Indexed BySCI
Language英语
Funding ProjectYouth Innovation Promotion Association of the Chinese Academy of Sciences[2017236] ; National Natural Science Foundation of China[U1760201]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000587972900001
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141293
Collection中国科学院金属研究所
Corresponding AuthorXue, P.; Liu, Y. D.
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang, B. B.,Wu, L. H.,Xue, P.,et al. Improved high cycle fatigue property of ultrafine grained pure aluminum[J]. MATERIALS LETTERS,2020,277:4.
APA Wang, B. B..,Wu, L. H..,Xue, P..,Ni, D. R..,Xiao, B. L..,...&Ma, Z. Y..(2020).Improved high cycle fatigue property of ultrafine grained pure aluminum.MATERIALS LETTERS,277,4.
MLA Wang, B. B.,et al."Improved high cycle fatigue property of ultrafine grained pure aluminum".MATERIALS LETTERS 277(2020):4.
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