Bulk and microscale compressive behavior of a Zr-based metallic glass

被引：136

作者：

Lai, Y. H. ^{[1
]}

Lee, C. J. ^{[1
]}

Cheng, Y. T. ^{[1
]}

Chou, H. S. ^{[1
]}

Chen, H. M. ^{[1
]}

Du, X. H. ^{[1
,2
]}

Chang, C. I. ^{[1
]}

Huang, J. C. ^{[1
]}

Jian, S. R. ^{[3
]}

Jang, J. S. C. ^{[3
]}

Nieh, T. G. ^{[4
]}

机构：

[1] Natl Sun Yat Sen Univ, Ctr Nanosci & Nanotechnol, Inst Mat Sci & Engn, Kaohsiung 804, Taiwan

[2] Shenyang Inst Aeronaut Engn, Dept Mat Engn, Shenyang 110034, Peoples R China

[3] I Shou Univ, Dept Mat Sci & Engn, Kaohsiung 840, Taiwan

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

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 10期

关键词：

metallic glasses; micropillars; compression test; shear bands;

D O I：

10.1016/j.scriptamat.2008.01.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Micropillars with diameters of 3.8, 1 and 0.7 mu m were fabricated from a two-phase Zr-based metallic glass using focus ion beam (FIB), and then tested in compression at strain rates from 1 X 10(-4) to 1 X 10(-2) s(-1). The apparent yield strength of the micropillars ranges from 1992 to 2972 MPa, or 25-86% increase over that of the bulk specimens. This strength increase can be rationalized by the Weibull statistics for brittle materials. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：890 / 893

页数：4

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