Atomic scale characterization of shear bands in an amorphous metal

被引：144

作者：

Li, Qi-Kai ^{[1
]}

Li, Mo

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100080, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 24期

关键词：

D O I：

10.1063/1.2212059

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The shear bands in a model amorphous CuZr metallic glass are examined using atomistic simulations. The localized shear zones are characterized at atomic scales by the nearest-neighbor atomic bond rotation angle, the nearest-neighbor atomic bond length, the atomic volume, and the potential energy. It is shown that the shear band is indeed a region with a liquidlike structure and different thermomechanical properties. Shear band formation could be a result from both local heating and free volume generation. The variation of shear band properties with temperature and strain rate is also briefly reported.

引用

页数：3

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