Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain size

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	Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain size
	Wu XL(武晓雷); Ma E; Wu XL
会议录名称	Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing
	2008
页码	84-86
会议名称	14th International Conference on the Strength of Materials (ICSMA 14)
会议日期	JUN 04-09, 2006
会议地点	Xian Jiaotong Univ, Xian, PEOPLES R CHINA
摘要	Deformation microstructures have been investigated in nanocrystalline (nc) Ni with grain sizes in the 50-100 nm range. It was found that deformation twinning started to occur in grains of similar to 90 nm, and its propensity increased with decreasing grain size. In most of the nc grains dislocations were observed as well, in the form of individual dislocations and dipoles. It is concluded that dislocation-mediated plasticity dominates for grain sizes in the upper half, i.e. 50-100 nm, of the nanocrystalline regime. (C) 2007 Published by Elsevier B.V.
关键词	Nanocrystalline Metal Plastic Deformation Twinning Dislocation Ni Nanostructured Metals Al Strength Ductility Slip
WOS记录号	WOS:000256071100019
收录类别	CPCI-S
语种	英语
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25430
专题	力学所知识产出(1956-2008)
通讯作者	Wu XL
推荐引用方式 GB/T 7714	Wu XL,Ma E,Wu XL. Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain size[C]Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing,2008:84-86.

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