Plasticity in Cu(111)/Cu46Zr54 glass nanolaminates under uniaxial compression

被引：50

作者：

Arman, B. ^{[1
,2
]}

Brandl, C. ^{[1
]}

Luo, S. N. ^{[1
]}

Germann, T. C. ^{[1
]}

Misra, A. ^{[1
]}

Cagin, T. ^{[2
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Texas A&M Univ, Dept Chem Engn, College Stn, TX 77845 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 04期

关键词：

METALLIC-GLASS; NANOINDENTATION; DEFORMATION; NUCLEATION; FAILURE; TENSION; ORDER;

D O I：

10.1063/1.3627163

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We perform large-scale molecular dynamics simulations to investigate plasticity in Cu/Cu46Zr54 glass nanolaminates under uniaxial compression. Partial and full dislocations are observed in the Cu layers, and screw dislocations are seen near the amorphous-crystalline interfaces (ACIs). Nucleation of shear bands in a glass layer is directly induced by the dislocations in the neighboring crystalline Cu layer through ACIs, and they grow from the ACIs into the glass layer and absorb ambient shear transformation zones. Plasticity in the glass layers is realized via pronounced, stable shear banding. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3627163]

引用

页数：5

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