Thermodynamic assessment of the ordered B2 phase in the Ti-V-Cr-Al quaternary system

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Abstract

Thermodynamic assessment of the ordered B2 phase in the quaternary Ti-V-Cr-Al system is carried out. A set of self-consistent thermodynamic parameters is presented. A two-sublattice model (Al, Cr, Ti. V)(0.5):(Al, Cr, Ti. V)(0.5) is used. The predicted phase equilibria and order/disorder transformation temperature are in good agreement with experimental information, both in the Ti-V-Cr-Al quaternary and in the important binary and ternary subsystems. The thermodynamic dataset can be used to predict compositions which are prone to the order/disorder reaction. (C) 2011 Elsevier Ltd. All rights reserved.

Details

Original languageEnglish
Pages (from-to)204-208
Number of pages5
JournalCalphad
Volume35
Issue number2
Publication statusPublished - 1 Jun 2011

Keywords

  • Ti-V-Cr-Al, Thermodynamic assessment, B2