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Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates
Wang, M.; Pang, J. C.; Liu, H. Q.; Zou, C. L.; Li, S. X.; Zhang, Z. F.
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
Indexed BySCI
Language英语
WOS IDWOS:000482492600025
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80744
Collection中国科学院金属研究所
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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