Abstract

Based on critical evaluation of the experimental phase diagram data of the Co3Cr3Ti ternary system, a thermodynamic modeling of this ternary system over the whole composition and temperature range was conducted by using the CALPHAD technique. One single function was used to describe the Gibbs energies of both ordered and disordered phases, including L12/fcc_A1 and B2/bcc_A2. A set of self-consistent thermodynamic parameters for the Gibbs energies of individual phases in the Co3Cr3Ti system was obtained. Comprehensive comparisons between the calculated and measured phase diagrams show that all the reliable experimental information can be satisfactorily accounted for by the present thermodynamic description.

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