Surface flaws control strain localization in the deformation of Cu|Au nanolaminate pillars

doi:10.1557/mrc.2019.93

CORC > 金属研究所 > 中国科学院金属研究所

	Surface flaws control strain localization in the deformation of Cu\|Au nanolaminate pillars
	Gola, Adrien 1,2; Zhang, Guang-Ping 3; Pastewka, Lars 1,4; Schwaiger, Ruth 5
刊名	MRS COMMUNICATIONS
	2019-09-01
卷号	9 期号:3 页码:1067-1071
ISSN号	2159-6859
DOI	10.1557/mrc.2019.93
通讯作者	Pastewka, Lars(lars.pastewka@imtek.uni-freiburg.de)
英文摘要	The authors carried out matched experiments and molecular dynamics simulations of the compression of nanopillars prepared from Cu vertical bar Au nanolaminates with up to 25 nm layer thickness. The stress-strain behaviors obtained from both techniques are in excellent agreement. Variation in the layer thickness reveals an increase in the strength with a decreasing layer thickness. Pillars fail through the formation of shear bands whose nucleation they trace back to the existence of surface flaws. This combined approach demonstrates the crucial role of contact geometry in controlling the deformation mode and suggests that modulus-matched nanolaminates should be able to suppress strain localization while maintaining controllable strength.
资助项目	Helmholtz Association[HCJRG-217] ; Helmholtz Association[GJHZ1401] ; Chinese Academy of Sciences[HCJRG-217] ; Chinese Academy of Sciences[GJHZ1401] ; Deutsche Forschungsgemeinschaft DFG[PA 2023/2] ; DFG[INST 39/963-1 FUGG]
WOS研究方向	Materials Science
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000488237800036
资助机构	Helmholtz Association ; Chinese Academy of Sciences ; Deutsche Forschungsgemeinschaft DFG ; DFG
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135805]
专题	金属研究所_中国科学院金属研究所
通讯作者	Pastewka, Lars
作者单位	1.Univ Freiburg, Dept Microsyst Engn, Georges Kohler Allee 103, D-79110 Freiburg, Germany 2.KIT, Inst Appl Mat, Str Forum 4, D-76131 Karlsruhe, Germany 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 4.Univ Freiburg, Freiburg Mat Res Ctr, D-79104 Freiburg, Germany 5.KIT, Inst Appl Mat, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
推荐引用方式 GB/T 7714	Gola, Adrien,Zhang, Guang-Ping,Pastewka, Lars,et al. Surface flaws control strain localization in the deformation of Cu\|Au nanolaminate pillars[J]. MRS COMMUNICATIONS,2019,9(3):1067-1071.
APA	Gola, Adrien,Zhang, Guang-Ping,Pastewka, Lars,&Schwaiger, Ruth.(2019).Surface flaws control strain localization in the deformation of Cu\|Au nanolaminate pillars.MRS COMMUNICATIONS,9(3),1067-1071.
MLA	Gola, Adrien,et al."Surface flaws control strain localization in the deformation of Cu\|Au nanolaminate pillars".MRS COMMUNICATIONS 9.3(2019):1067-1071.