Abnormal grain coarsening in cyclically deformed gradient nanograined Cu

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	Abnormal grain coarsening in cyclically deformed gradient nanograined Cu
	Long, JZ; Pan, QS; Tao, NR; Lu, L; Lu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
刊名	SCRIPTA MATERIALIA
	2018-03-01
卷号	145 页码:99-103
关键词	Severe Plastic-deformation Nanocrystalline Materials Fatigue Copper Growth Metals Evolution Strength
ISSN号	1359-6462
英文摘要	Microstructural evolution of gradient nanograined (GNG) Cu was investigated under strain-controlled cyclic deformation. Mechanically driven abnormal grain coarsening initiated from the ultrafine grained subsurface layer and eventually extended to the nanograined top surface with increasing cycles. Abnormal grain coarsening and the formation of dislocation patterns sustain the cyclic plastic strain and postpone the formation of extrusions/intrusions at the top surface, contributing to the enhancement of overall cyclic properties of GNG Cu. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; Microstructural evolution of gradient nanograined (GNG) Cu was investigated under strain-controlled cyclic deformation. Mechanically driven abnormal grain coarsening initiated from the ultrafine grained subsurface layer and eventually extended to the nanograined top surface with increasing cycles. Abnormal grain coarsening and the formation of dislocation patterns sustain the cyclic plastic strain and postpone the formation of extrusions/intrusions at the top surface, contributing to the enhancement of overall cyclic properties of GNG Cu. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	National Science Foundation of China [51371171, 51471172, 51420105001, U1608257]; key Research program of Frontier Science, CAS
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79479]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Long, JZ,Pan, QS,Tao, NR,et al. Abnormal grain coarsening in cyclically deformed gradient nanograined Cu[J]. SCRIPTA MATERIALIA,2018,145:99-103.
APA	Long, JZ,Pan, QS,Tao, NR,Lu, L,&Lu, L .(2018).Abnormal grain coarsening in cyclically deformed gradient nanograined Cu.SCRIPTA MATERIALIA,145,99-103.
MLA	Long, JZ,et al."Abnormal grain coarsening in cyclically deformed gradient nanograined Cu".SCRIPTA MATERIALIA 145(2018):99-103.