Physical factors controlling the ductility of bulk metallic glasses

被引：29

作者：

Liu, Y. ^{[1
]}

Wu, H. ^{[1
]}

Liu, C. T. ^{[2
]}

Zhang, Z. ^{[2
]}

Keppens, V. ^{[2
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

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

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2998410

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In order to identify key physical factor controlling the deformation and fracture behavior of bulk metallic glasses (BMGs), we compiled and analyzed the elastic moduli and compressive ductility for BMGs. In addition, new modulus data were generated in the critical ranges in order to facilitate the analysis. We have found that the intrinsic ductility of BMGs can be correlated with the bulk-to-shear modulus ratio B/G according to Pugh's [Philos. Mag. 45, 823 (1954)] rule. In some individual BMG systems, for example, Fe based, the relationship seems to be very clear. The physical meaning of this correlation is discussed in terms of atomic bonding and connectivity. (c) 2008 American Institute of Physics.

引用

页数：3

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