Property optimization of low-cycle fatigue in Al-Si piston alloy at elevated temperatures by ultrasonic melt treatment

doi:10.1016/j.jmrt.2019.07.069

IMR OpenIR

	Property optimization of low-cycle fatigue in Al-Si piston alloy at elevated temperatures by ultrasonic melt treatment
	Wang, M.1,2; Pang, J. C.1; Liu, H. Q.1,2; 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)
	2019-09-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	8 期号:5 页码:4556-4568
摘要	The cyclic deformation and damage behaviors of Al-Si piston alloys are comprehensively studied. It is found that the fatigue cracks mainly initiate from broken primary Si at low temperature and phase/matrix interface debonding at higher temperature. The transgranular crack propagation can be found for all the temperatures and the grain is obviously reduced after low-cycle fatigue at higher temperature. Furthermore, a hysteresis energy-based life prediction model was developed and utilized. Based on the model, the optimum fatigue life was found at intermediate temperature. A strategy for fatigue property optimization was proposed: increasing W-0 at low temperature and increasing beta at high temperature, to enhance the fatigue life during entire service temperatures with the ultrasonic melt treatment. In this way, the remarkable improvement of the fatigue properties may be achieved. (C) 2019 The Authors. Published by Elsevier B.V.
关键词	Al-Si alloys Low cycle fatigue Fatigue crack initiation Temperature Property optimization
资助者	National Natural Science Foundation of China (NSFC)
DOI	10.1016/j.jmrt.2019.07.069
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	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000486630400086
出版者	ELSEVIER
引用统计	被引频次：14[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/321006/135704
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
推荐引用方式 GB/T 7714	Wang, M.,Pang, J. C.,Liu, H. Q.,et al. Property optimization of low-cycle fatigue in Al-Si piston alloy at elevated temperatures by ultrasonic melt treatment[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2019,8(5):4556-4568.
APA	Wang, M.,Pang, J. C.,Liu, H. Q.,Li, S. X.,&Zhang, Z. F..(2019).Property optimization of low-cycle fatigue in Al-Si piston alloy at elevated temperatures by ultrasonic melt treatment.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,8(5),4556-4568.
MLA	Wang, M.,et al."Property optimization of low-cycle fatigue in Al-Si piston alloy at elevated temperatures by ultrasonic melt treatment".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 8.5(2019):4556-4568.