Thermodynamic-diagram analysis of the Fe-Si-Al-Mn system with the construction of diagrams of phase relations

Abstract

In the practice of complex theoretical studies of multicomponent systems, the so-called thermodynamic-diagram analysis method is known, which greatly simplifies the study of the features of phase transformations in multicomponent systems by dividing them into thermodynamically stable elementary partial subsystems of the same dimension as the main one. Thermodynamic-diagram analysis combines a thermodynamic assessment of the chemical interaction of components in the system under study with a geometric diagram. Such a combination, as studies of the physico-chemical bases of the production of refractories and ferroalloys have shown, turns out to be productive when interpreting chemical interactions in complex systems.

Keywords

• Fe-Si-Al-Mn
• thermodynamic diagram
• Gibbs energy
• phases
• mathematical model