Assessment of Mn-Fe-Si-C Melt in Unified Interaction Parameter Formalism

• Published in: Metallurgical and materials transactions. B, Process metallurgy and materials processing science Vol. 47; no. 1; pp. 216 - 227
• Main Authors: Shin, Jung Pil, Lee, Young E.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-02-2016; Springer Nature B.V
• Subjects: Assessments; Carbon; Characterization and Evaluation of Materials; Chemistry and Materials Science; Formalism; Manganese; Materials Science; Melting; Melts; Metallic Materials; Metallurgy; Nanotechnology; Silicon; Silicon carbide; Solubility; Structural Materials; Surfaces and Interfaces; Thermodynamics; Thin Films; Composition Dependency; Activity Coefficient; Interaction Parameter; Solution Property; Binary Interaction Parameter
• ISSN: 1073-5615; 1543-1916
• DOI: 10.1007/s11663-015-0487-7

The solubility of C in Mn-Fe-Si-C melt decreases with increasing Si content, and its decrease becomes greater when the phase in equilibrium with Mn-Fe-Si-C melt changes from carbon to SiC. Such behavior has an industrial implication for low carbon products and processes of steels and Mn alloys. Li and Morris assessed the solution properties of Mn-Fe-Si-C system in the UIP formalism, but the effectiveness of their assessment was limited in applicable ranges of composition to Mn-rich solution and of temperature to around 1673 K (1400 °C). This study develops the information of activity coefficients of C and Si of Mn-Fe-Si-C system from the consistent experimental solubility of C and assesses them in the UIP formalism. This assessment of Mn-Fe-Si-C system describes confidently the behavior of solution properties in a wide range of composition and temperature.