The re-assessment of the Mg–Zn and Fe–Si systems and their incorporation in thermodynamic descriptions of the Al–Mg–Zn and Fe–Si–Zn systems

Self-consistent thermodynamic descriptions of the Mg–Zn and Fe–Si systems have been obtained based on data available in the literature. This involved modification of the description of liquid phase in order to remove the ‘unlikely’ miscibility gap that appears in calculations when using data from earlier thermodynamic assessments. The results calculated using current descriptions are in good agreement with the available experimental data. The new datasets for these binary systems were substituted into ternary datasets available in the literature in order to perform calculations for the Al–Mg–Zn and Fe–Si–Zn systems; good agreement was observed with earlier calculations and experimental data available.