Plasticity and microstructure of Zr-Cu-Al bulk metallic glasses

被引：129

作者：

Kumar, G. ^{[1
]}

Ohkubo, T. ^{[1
]}

Mukai, T. ^{[1
]}

Hono, K. ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 02期

基金：

日本科学技术振兴机构;

关键词：

metallic glasses; shear bands; plastic deformation; transmission sample preparation; MECHANICAL-PROPERTIES; DEFORMATION; STABILITY;

D O I：

10.1016/j.scriptamat.2007.02.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A small variation in the composition of (Zr50Cu50)(100-x)Al-x bulk metallic glasses (BMGs) results in a markedly different mechanical behavior. In contrary to the previous reports, no chemical or structural inhomogeneities were observed in the sample that exhibits a large plastic strain, indicating that the plasticity of Zr-Cu-Al BMGs is not inherently related to their microstructural features. The shear bands in plastic Zr47.5Cu47.5Al5 show localized nanocrystallization whereas the macroscopically brittle Zr45Cu45Al10 shows no indications of nanocrystallization during deformation. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：173 / 176

页数：4

共 24 条

[1]

[Anonymous], 2000, METALL TRANS, DOI [10.1007/978-1-4615-4281-0, DOI 10.1007/978-1-4615-4281-0]

[2] PLASTIC-DEFORMATION IN METALLIC GLASSES [J].