Effect of Volume Fraction of Gradient Nanograined Layer on Low-Cycle Fatigue Behavior of Cu

doi:10.1002/adem.201900554

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of Volume Fraction of Gradient Nanograined Layer on Low-Cycle Fatigue Behavior of Cu
	Jing, Li-Jun 1,2; Pan, Qing-Song 2; Lu, Lei 2
刊名	ADVANCED ENGINEERING MATERIALS
	2019-08-13
页码	8
关键词	copper cyclic deformation fatigue properties gradient nanograins homogeneous grain coarsening
ISSN号	1438-1656
DOI	10.1002/adem.201900554
通讯作者	Lu, Lei(llu@imr.ac.cn)
英文摘要	Low-cycle fatigue properties and cyclic behaviors of two pure Cu samples skinned with different volume fractions of gradient nanograined (GNG) layer are investigated under total strain-amplitude-controlled fatigue tests. Increasing the volume fraction of high-strength GNG layer can greatly elevate the cyclic stress amplitude of GNG/coarse grain (CG) Cu, compared with that of CG Cu fatigued at the same strain amplitude. Distinctly, it does not clearly influence the low-cycle fatigue life of GNG/CG samples with different GNG volume fractions, i.e., both exhibit comparable fatigue lives, even longer than their CG counterpart. Such enhanced low-cycle fatigue life is mainly due to the progressive homogenization of the gradient surface nanostructure, which effectively suppresses the surface roughening and fatigue cracking of the GNG/CG samples during cyclic straining.
资助项目	National Science Foundation of China[51420105001] ; National Science Foundation of China[51471172] ; National Science Foundation of China[51601196] ; National Science Foundation of China[U1608257] ; Key Research Program of Frontier Sciences, CAS ; Youth Innovation Promotion Association, CAS[2019196]
WOS研究方向	Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000481337900001
资助机构	National Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Youth Innovation Promotion Association, CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135010]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, Lei
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Jing, Li-Jun,Pan, Qing-Song,Lu, Lei. Effect of Volume Fraction of Gradient Nanograined Layer on Low-Cycle Fatigue Behavior of Cu[J]. ADVANCED ENGINEERING MATERIALS,2019:8.
APA	Jing, Li-Jun,Pan, Qing-Song,&Lu, Lei.(2019).Effect of Volume Fraction of Gradient Nanograined Layer on Low-Cycle Fatigue Behavior of Cu.ADVANCED ENGINEERING MATERIALS,8.
MLA	Jing, Li-Jun,et al."Effect of Volume Fraction of Gradient Nanograined Layer on Low-Cycle Fatigue Behavior of Cu".ADVANCED ENGINEERING MATERIALS (2019):8.