Effect of volume fraction of gradient nanograined layer on high-cycle fatigue behavior of Cu

doi:10.1016/j.scriptamat.2018.10.019

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 high-cycle fatigue behavior of Cu
	Jing, Lijun 1,2; Pan, Qingsong 1; Long, Jianzhou 1; Tao, Nairong 1; Lu, Lei 1
刊名	SCRIPTA MATERIALIA
	2019-03-01
卷号	161 页码:74-77
关键词	Gradient nanograin (GNG) Copper The fatigue endurance limit Cyclic deformation Abnormal grain coarsening
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2018.10.019
通讯作者	Lu, Lei(llu@imr.ac.cn)
英文摘要	Fatigue behaviors of two Cu samples with different volume fractions of gradient nanograined (GNG) surface layer, prepared by surface mechanical grinding treatment, are investigated under stress-controlled high-cycle fatigue tests. With increasing the volume fraction of GNG layer from 43% to 13%, the fatigue endurance limit (at 107 cycles) of GNG Cu is enhanced from 88 to 98 MPa, much higher than that of coarse grained counterpart. Large volume fraction of GNG layer effectively postpones the extension of abnormal grain coarsening from a deeper subsurface layer to the topmost surface and thereby retards the initiation of surface fatigue crack. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
资助项目	National Science Foundation of China[51471172] ; National Science Foundation of China[51420105001] ; National Science Foundation of China[U1608257] ; key Research program of Frontier Science, CAS
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000450375500017
资助机构	National Science Foundation of China ; key Research program of Frontier Science, CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130399]
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.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 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	Jing, Lijun,Pan, Qingsong,Long, Jianzhou,et al. Effect of volume fraction of gradient nanograined layer on high-cycle fatigue behavior of Cu[J]. SCRIPTA MATERIALIA,2019,161:74-77.
APA	Jing, Lijun,Pan, Qingsong,Long, Jianzhou,Tao, Nairong,&Lu, Lei.(2019).Effect of volume fraction of gradient nanograined layer on high-cycle fatigue behavior of Cu.SCRIPTA MATERIALIA,161,74-77.
MLA	Jing, Lijun,et al."Effect of volume fraction of gradient nanograined layer on high-cycle fatigue behavior of Cu".SCRIPTA MATERIALIA 161(2019):74-77.