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

IMR OpenIR

	Two different types of shear-deformation behaviour in Au-Cu multilayers; Two different types of shear-deformation behaviour in Au-Cu multilayers
	Y. P. Li; X. F. Zhu; J. Tan; B. Wu; G. P. Zhang
	2009 ; 2009
发表期刊	Philosophical Magazine Letters ; Philosophical Magazine Letters
ISSN	0950-0839 ; 0950-0839
卷号	89 期号:1 页码:66-74
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.; 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.
部门归属	[li, y. p.; zhu, x. f.; tan, j.; wu, b.; zhang, g. p.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang, peoples r china.;zhang, gp (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang, peoples r china;gpzhang@imr.ac.cn ; [li, y. p.; zhu, x. f.; tan, j.; wu, b.; zhang, g. p.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang, peoples r china.;zhang, gp (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang, peoples r china;gpzhang@imr.ac.cn
关键词	Dislocation Capacity Dislocation Capacity Deformation Deformation Dislocations Dislocations Interfaces Interfaces Multilayer Multilayer Shear Bands Shear Bands Molecular-dynamics Simulation Molecular-dynamics Simulation High-strain-rate High-strain-rate Nanocrystalline Nanocrystalline Materials Materials Plastic-deformation Plastic-deformation Microstructure Microstructure Localization Localization Composites Composites Mechanisms Mechanisms Ductility Ductility Evolution Evolution
URL	查看原文 ; 查看原文
WOS记录号	WOS:000262720800009 ; WOS:000262720800009
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32049
专题	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, Two different types of shear-deformation behaviour in Au-Cu multilayers[J]. Philosophical Magazine Letters, Philosophical Magazine Letters,2009, 2009,89, 89(1):66-74, 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.