Ductility of a Zr-based bulk-metallic glass with different specimen's geometries

被引：56

作者：

Jiang, W. H. ^{[1
]}

Fan, G. J.

Choo, H.

Liaw, P. K.

机构：

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

[2] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37830 USA

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 29-30期

基金：

美国国家科学基金会;

关键词：

metallic glasses; ductility; compression tests; shear band; geometry;

D O I：

10.1016/j.matlet.2006.03.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ductility of a Zr52.5Cu17.9Ni14.6Al10Ti5 bulk-metallic glass with different specimen's geometries in quasistatic compression experiments was investigated. The length (0 to diameter (d) ratio, l/d, of specimens significantly affects the demonstration of the ductility. The specimens with the l/d larger than 0.75 exhibit a poor ductility, while those with the l/d equal to and smaller than 0.75 show an excellent ductility. The maximum elongation before the failure was observed to be up to about 80%. This difference in ductility is a result of the geometrical constraints. The present study demonstrates that the bulk-metallic glass has the outstanding intrinsic ductility. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3537 / 3540

页数：4

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