Thermodynamic Assessments of the Au-Nd and Au-Dy Systems

The thermodynamic assessments of the Au-Nd and Au-Dy binary systems have been carried out by the Calculation of Phase Diagram (CALPHAD) method based on the available experimental data. The Gibbs free energies of the solution phases including liquid, fcc, bcc, hcp and dhcp were described by the substitutional solution models with the Redlich-Kister equation, and those of the intermetallic compounds were described by the sublattice models. A set of self-consistent and reasonable thermodynamic parameters is obtained for the binary systems, which describes the Gibbs free energies of the solution phases and the intermetallic compounds phases.