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Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates
Wang, M.1; Pang, J. C.1; Liu, H. Q.1,2; Zou, C. L.1,3; Li, S. X.1; Zhang, Z. F.1,2
Corresponding AuthorPang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
2019-10-01
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
ISSN0142-1123
Volume127Pages:268-274
AbstractThe low-cycle fatigue (LCF) deformation mechanism and fatigue life of an Al-12Si alloy were investigated at different temperatures and strain rates. With increasing temperature, the fatigue life increases at first and then reduces, which is derived from the deformation mechanism. At the lower temperatures, the primary Si cracking induced by piling-up of dislocations dominates fatigue damage behaviors. Both of increasing temperature and reducing the strain-rate can restrain the phase cracking, thus increase fatigue life. However, with further increasing temperature, the micro-scale void caused by dislocation annihilation dominates the phase debonding behavior, leading to the decrease of fatigue life.
KeywordAl-12Si alloy Low-cycle fatigue Strain rate High temperature Damage mechanism
Funding OrganizationNational Natural Science Foundation of China (NSFC)
DOI10.1016/j.ijfatigue.2019.06.023
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[51331007]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000482492600025
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/135417
Collection中国科学院金属研究所
Corresponding AuthorPang, J. C.; Zhang, Z. F.
Affiliation1.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Lab, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
3.Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shenliao Rd, Shenyang 110870, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wang, M.,Pang, J. C.,Liu, H. Q.,et al. Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates[J]. INTERNATIONAL JOURNAL OF FATIGUE,2019,127:268-274.
APA Wang, M.,Pang, J. C.,Liu, H. Q.,Zou, C. L.,Li, S. X.,&Zhang, Z. F..(2019).Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates.INTERNATIONAL JOURNAL OF FATIGUE,127,268-274.
MLA Wang, M.,et al."Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates".INTERNATIONAL JOURNAL OF FATIGUE 127(2019):268-274.
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