Thermodynamic modeling of the Pb + Bi melt evaporation under various pressures and temperatures

► The TERRA soft and the ISIP model have been used. ► Composition and partial pressure of the Pb-Bi vapor phase have been defined for different pressures and temperatures. ► Diagrams of phase equilibriums for the liquid-steam Pb-Bi system have been constructed. ► A good correlation between experimental results and the carried out calculations on the Pb-Bi phase diagrams is observed.