Molecular dynamic simulation of glass formation in binary liquid metal: Cu-Ag using EAM

被引：45

作者：

Qi, L ^{[1
]}

Zhang, HF ^{[1
]}

Hu, ZQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

来源：

INTERMETALLICS | 2004年 / 12卷 / 10-11期

关键词：

glasses; metallic; rapid solidification processing; simulations; atomistic;

D O I：

10.1016/j.intermet.2004.04.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Based on the embedded-atom method, a constant-pressure, constant-temperature molecular dynamics technique is applied to obtain an atomic description of glass formation process in eutectic Cu40Ag60 alloy. By using radial distribution function and pair analysis methods, the structure and glass forming ability of this alloy is studied by quenching from the liquid at different cooling rates (1 x 10(11), 1 x 10(12), 5 x 10(12), 1 x 10(13) and 1 x 10(14) K/s). It is observed that the retention of amorphous structure requires extremely high cooling rates. Structure analyses of the alloys in the simulations reveal the evolvement of the different clusters at various quenching rate during the quenching process. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1191 / 1195

页数：5

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