A new self-consistent model for thermodynamics of binary solutions. (November 2015)

• Record Type: Journal Article
• Authors: Svoboda, J.; Shan, Y.V.; Fischer, F.D.
• Is Part Of: Scripta materialia. Volume 108(2015)
• Page Start: 27
• Page End: 30
• Publication Date: 2015-11
• Subjects: Thermodynamics -- Analytical methods -- CALPHAD -- Phase diagram -- Self-consistent model; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.06.014
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : The newly developed self-consistent model exploits the trapping concept and calculates the numbers of A–A, A–B and B–B bonds in A–B alloys in dependence of the bond-energy parameter. Consequently the self-consistent model improves the classical regular solution model utilizing the assumption of random distribution of solute atoms. Remarkable differences between both models are demonstrated. The self-consistent model may significantly reduce the number of fitting parameters in the CALPHAD approach as well as experimental efforts.