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Surface flaws control strain localization in the deformation of Cu|Au nanolaminate pillars
Gola, Adrien1,2; Zhang, Guang-Ping3; Pastewka, Lars1,4; Schwaiger, Ruth5
Corresponding AuthorPastewka, Lars(lars.pastewka@imtek.uni-freiburg.de)
2019-09-01
Source PublicationMRS COMMUNICATIONS
ISSN2159-6859
Volume9Issue:3Pages:1067-1071
AbstractThe 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.
Funding OrganizationHelmholtz Association ; Chinese Academy of Sciences ; Deutsche Forschungsgemeinschaft DFG ; DFG
DOI10.1557/mrc.2019.93
Indexed BySCI
Language英语
Funding ProjectHelmholtz 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000488237800036
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/135806
Collection中国科学院金属研究所
Corresponding AuthorPastewka, Lars
Affiliation1.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
Recommended Citation
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.
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