Competitive formation of glasses and glass-matrix composites

被引：29

作者：

Lu, Z. P. ^{[1
]}

Ma, D.

Liu, C. T.

Chang, Y. A.

机构：

[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

[2] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA

来源：

INTERMETALLICS | 2007年 / 15卷 / 03期

关键词：

glasses; metallic; phase transformations; phase diagrams;

D O I：

10.1016/j.intermet.2006.05.015

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：

By systematically investigating the effect of chemical composition on the competitive formation of glasses in various systems, we attempt to address two long-standing scientific puzzles upon metallic glasses, i.e., (i) which composition is the best for forming glasses and glass-matrix composites and (ii) what determines the easy glass-forming composition range in a given alloy system. Our findings have led to the construction of a qualitative microstructure selection map, which is useful for guiding the design of bulkier metallic glasses and glass-matrix composites. In addition, our analysis demonstrates that the classical kinetic treatment of glass formation is insufficient; to analyze glass formation properly, it is necessary to go beyond simple assumptions of single polymorphic solidification during crystallization. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：253 / 259

页数：7

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