Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates

doi:10.1016/j.ijfatigue.2019.06.023

IMR OpenIR

	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
通讯作者	Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2019-10-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	127 页码:268-274
摘要	The 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.
关键词	Al-12Si alloy Low-cycle fatigue Strain rate High temperature Damage mechanism
资助者	National Natural Science Foundation of China (NSFC)
DOI	10.1016/j.ijfatigue.2019.06.023
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[51331007]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000482492600025
出版者	ELSEVIER SCI LTD
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135417
专题	中国科学院金属研究所
通讯作者	Pang, J. C.; Zhang, Z. F.
作者单位	1.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
推荐引用方式 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.