Carbon Solubility and Mass Action Concentrations of Fe-Cr-C Melts

摘要

According to the experimental data form literature sources, an empirical equation of carbon solubility in Fe-Cr-C melts has been regressed. based on the coexistence theory of metallic melts involving compound formation, the phase diagram of Cr-C system as well as thermodynmaic data of Fe-Cr-C melts, a calculating model of mass action concentrations for these melts has been formulated. According to this model, the standard free energies of formation for CrC and Cr_3C_2 have been obtained. Satisfactory agreement between calcualted and measured values shows that the model can reflect the structural characteristics of Fe-Cr-C melts.