Metallurgical and Materials Transactions B

, Volume 32, Issue 1, pp 87–103

Thermodynamic description for concentrated metallic solutions using interaction parameters

  • Zhongting MA

DOI: 10.1007/s11663-001-0011-0

Cite this article as:
MA, Z. Metall and Materi Trans B (2001) 32: 87. doi:10.1007/s11663-001-0011-0


The integral molar excess Gibbs energy of a multicomponent system is expressed in terms of interaction parameters, from which the analytical formulae of the activity coefficients of the solutes and solvent, as Eqs. [23] and [24], were deduced. This approach, named the ε approach, is able to describe quantitatively the thermodynamic properties of multicomponent systems. It features thermodynamic consistency, high accuracy, and a rather small influence of the higher-interaction parameters on the thermodynamic properties of metallic solutions. A simple modification to the first-order interaction parameters extends the ε approach, to be applicable to systems with strong interactions between components at both low and concentrated levels.

Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2001

Authors and Affiliations

  • Zhongting MA
    • 2
  1. 1.the Beijing University of Science and TechnologyBeijingP.R. China
  2. 2.the Institute of Iron and Steel TechnologyFreiberg University of Mining and TechnologyFreibergGermany