Interfacial Stress, Interfacial Energy, and Phase Equilibria in Binary Alloys

被引：0
|
作者：
William C. Johnson
P. W. Voorhees
机构：
[1] University of Virginia,Department of Materials Science and Engineering
来源：
Journal of Statistical Physics | 1999年 / 95卷
关键词：
phase equilibrium; interfacial stress; surface stress; elastic stress;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A simple model is presented in order to explore the influence of interfacial stress, interfacial energy, and surface stress on the characteristics of phase equilibria in stressed, two-phase binary alloys. Two different system geometries are employed: concentric spheres and thin plates. The conditions for thermodynamic equilibrium are solved and equations of state for each geometry are obtained in terms of the phase fraction, alloy composition, system dimension, and several dimensionless materials parameters. Elastic stress introduces new equilibrium states that are further modified by the interfacial quantities. Those conditions for which interfacial quantities can induce significant changes in the equilibrium phase fraction and phase compositions are identified.
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页码：1281 / 1309
页数：28
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