Interfacial stress, interfacial energy, and phase equilibria in binary alloys

William C. Johnson*, P. W. Voorhees

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1281-1309
Number of pages29
JournalJournal of Statistical Physics
Volume95
Issue number5-6
DOIs
StatePublished - Jun 1999

Keywords

  • Elastic stress
  • Interfacial stress
  • Phase equilibrium
  • Surface stress

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics

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