Thermodynamic Modeling of Phase Equilibria in the FeO-Al₂O₃-Cr₂O₃ and MgO-Al₂O₃-Cr₂O₃ Systems

Abstract:

Thermodynamic modeling of phase equilibria and further construction of a full projection of the liquidus surface in the FeO–Al₂O₃–Cr₂O₃ and MgO–Al₂O₃–Cr₂O₃ systems were carried out. Theories of sub-regular ionic solutions, regular ionic solutions and ideal ionic solutions were used for calculation. Values of energy parameters of the used thermodynamic models were obtained in the course of the research. These values might be applicable for further modeling of more complex oxide slag systems which are formed in the process of manufacture of chromic steels. Calculated phase diagrams for the FeO–Al₂O₃–Cr₂O₃ and MgO–Al₂O₃–Cr₂O₃ systems were compared with available data from literature sources.

• Periodical: Materials Science Forum (Volume 989)
• Pages: 204-209
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.989.204
• Online since: May 2020
• Authors: Gennady G. Mikhailov*, Larisa A. Makrovets, Olga V. Samoilova
• Keywords: Modeling, Phase Diagrams, Phase Equilibria, Thermodynamics

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