Assessing plastic shear resistance of bulk metallic glasses under nanoindentation

被引：17
|
作者：
Wang, L. [1 ]
Song, S. X. [1 ]
Nieh, T. G. [1 ]
机构：
[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 10期
关键词：
D O I：
10.1063/1.2897301
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nanoindentation tests were conducted on three different bulk metallic glasses (BMGs) using both the Berkovich and cube-corner tips. Larger displacement and more pronounced pop ins were observed under cube-corner tip in all three materials. Pop-in distance and indentation depths were used to determine the plastic shear resistance of different BMGs under nanoindentation. The plastic shear resistance was found to be independent of the shape of the indenter and dependent only on material; it is linearly scaled with the shear modulus of a material. (c) 2008 American Institute of Physics.
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