Theoretical strength and the onset of plasticity in bulk metallic glasses investigated by nanoindentation with a spherical indenter

被引：190

作者：

Bei, H ^{[1
]}

Lu, ZP

George, EP

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[2] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.93.125504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The mechanical behavior of bulk metallic glasses (BMGs) was investigated by nanoindentation with a spherical indenter. The transition from perfectly elastic behavior to plastic deformation was clearly observed as a pop-in event (sudden displacement excursion) on the load-displacement curves. Hertzian stress analysis was used to describe fully the load-displacement behavior during elastic deformation and to determine the theoretical shear strengths of the BMGs.

引用

页码：125504 / 1

页数：4

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