Unusual room temperature ductility of a Zr-based bulk metallic glass containing nanoparticles

被引：38

作者：

Qiang, J. B. ^{[1
]}

Zhang, W. ^{[1
]}

Xie, G. Q. ^{[1
]}

Inoue, A. ^{[1
]}

机构：

[1] Tohoku Univ, IMR, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 23期

关键词：

D O I：

10.1063/1.2746071

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Highly ductile Zr65Al7.5Cu27.5 bulk metallic glass (BMG) containing nanometer scaled fcc phase was obtained by copper mold casting. Room temperature compression tests revealed superior mechanical properties of the alloy: yielding stress of 1670 MPa, Young's modulus of 90 GPa, elastic strain of 2%, and especially a remarkable plasticity of over 50%. The marginal BMG is a useful model system to examine the nanocrystal coalescence model and the shear-transformation-zone model proposed for large scale plastic deformations of metallic glasses. (c) 2007 American Institute of Physics.

引用

页数：3

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