ẢNH HƯỞNG CỦA ÁP SUẤT ĐẾN TÍNH CHẤT NHIỆT ĐỘNG CỦA HỢP KIM FeSi

Abstract

In this paper, we investigate the effects of pressure on the Debye frequency, Debye temperature, and melting temperature of two-component alloys using a semi-empirical approach within the Debye model. Numerical calculations were conducted for the Fe- 18wt%Si ferrosilicon alloy up to a pressure of 120 GPa. Our results are compared with previous experimental and theoretical data, demonstrating good agreement. This validation is crucial for confirming the accuracy of our developed theory and suggests that the current model can be extensively applied to study the thermodynamic properties of other materials.
Keywords: Melting, high pressure, ferrosilicon (FeSi), lindemann melting law, Debye model, Debye frequency and temperature.