Formation of Single and Multiple Deformation Twins in Nanocrystalline fcc Metals

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	Formation of Single and Multiple Deformation Twins in Nanocrystalline fcc Metals
	Zhu YT; Narayan J; Hirth JP; Mahajan S; Wu XL(武晓雷); Liao XZ
刊名	Acta Materialia
	2009-05-23
通讯作者邮箱	ytzhu@ncsu.edu; J_Narayan@ncsu.edu; jphmdh1@cox.net
卷号	57 期号:13 页码:3763-3770
关键词	Nanocrystalline materials Dislocations Twin boundaries Twinning Interfaces
ISSN号	1359-6454
通讯作者	Zhu YT ; Narayan J ; Hirth JP
合作状况	国际
中文摘要	Deformation twins are often observed to meet each other to form multi-fold twins in nanostructured face-centered cubic (fcc) metals.Here we propose two types of mechanism for the nucleation and growth of four different single and multiple twins. These mechanisms provide continuous generation of twinning partials for the growth of the twins after ucleation. A relatively high stress or high strain rate is needed to activate these mechanisms, making them more prevalent in nanocrystalline materials than in their coarse-grained counterparts.Experimental observations that support the proposed mechanisms are presented.
学科主题	固体力学
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	MOLECULAR-DYNAMICS SIMULATION ; FORMATION MECHANISM ; REBOUND MECHANISM ; CUBIC METALS ; AL ; DISLOCATION ; ALUMINUM ; SURFACE ; COPPER ; ONSET
收录类别	SCI
语种	英语
WOS记录号	WOS:000268414100008
公开日期	2009-12-24
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/28759]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Zhu YT,Narayan J,Hirth JP,et al. Formation of Single and Multiple Deformation Twins in Nanocrystalline fcc Metals[J]. Acta Materialia,2009,57(13):3763-3770.
APA	Zhu YT,Narayan J,Hirth JP,Mahajan S,武晓雷,&Liao XZ.(2009).Formation of Single and Multiple Deformation Twins in Nanocrystalline fcc Metals.Acta Materialia,57(13),3763-3770.
MLA	Zhu YT,et al."Formation of Single and Multiple Deformation Twins in Nanocrystalline fcc Metals".Acta Materialia 57.13(2009):3763-3770.