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

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Dislocations and twins in nanocrystalline Ni after severe plastic deformation: the effects of grain size
	Wu XL(武晓雷); Ma E; Wu XL
	2008
会议名称	14th International Conference on the Strength of Materials (ICSMA 14)
会议日期	JUN 04-09, 2006
通讯作者邮箱	xlwu@imech.ac.cn
会议地点	Xian Jiaotong Univ, Xian, PEOPLES R CHINA
关键词	Nanocrystalline Metal Plastic Deformation Twinning Dislocation Ni Nanostructured Metals Al Strength Ductility Slip
页码	84-86
通讯作者	Wu XL
中文摘要	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.
收录类别	CPCI-S
会议录	Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing
会议录出版者	Lausanne
会议录出版地	Elsevier Science Sa
语种	英语
ISSN号	0921-5093
WOS记录号	WOS:000256071100019
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/25430]
专题	力学研究所_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]. 见:14th International Conference on the Strength of Materials (ICSMA 14). Xian Jiaotong Univ, Xian, PEOPLES R CHINA. JUN 04-09, 2006.