Two different types of shear-deformation behaviour in Au-Cu multilayers

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	Two different types of shear-deformation behaviour in Au-Cu multilayers
	Y. P. Li ; X. F. Zhu ; J. Tan ; B. Wu ; G. P. Zhang
刊名	Philosophical Magazine Letters
	2009
卷号	89 期号:1 页码:66-74
关键词	dislocation capacity deformation dislocations interfaces multilayer shear bands molecular-dynamics simulation high-strain-rate nanocrystalline materials plastic-deformation microstructure localization composites mechanisms ductility evolution
ISSN号	0950-0839
中文摘要	Localised shear deformation of a material is usually identified as a particular feature of deformation inhomogeneity. Here, we show two different types of shear deformation-behaviour that occurred in Au-Cu multilayers subjected to microindentation load, namely, a cooperative-layer-buckling-induced shear banding in a nanoscale multilayer and a direct localised shearing across a layer interface along a shear plane in a submicron-scale multilayer. Theoretical analysis indicates that the formation of the two different types of shear deformation in the multilayers depends on a competition between the dislocation-pile-up-induced stress concentration at the layer interface and the barrier strength of the layer interface for glissile dislocation transmission.
原文出处	://WOS:000262720800009
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32049]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. P. Li,X. F. Zhu,J. Tan,et al. Two different types of shear-deformation behaviour in Au-Cu multilayers[J]. Philosophical Magazine Letters,2009,89(1):66-74.
APA	Y. P. Li,X. F. Zhu,J. Tan,B. Wu,&G. P. Zhang.(2009).Two different types of shear-deformation behaviour in Au-Cu multilayers.Philosophical Magazine Letters,89(1),66-74.
MLA	Y. P. Li,et al."Two different types of shear-deformation behaviour in Au-Cu multilayers".Philosophical Magazine Letters 89.1(2009):66-74.