Thermodynamic stability of microheterogenic states in Fe – Mn – C melts

Possibility of existence microheterogeneous states in Fe – Mn C melts was analyzed carried out according to the concepts chemical thermodynamics. Microheterogeneous state a chemically inhomogeneous melt understood as presence dispersed particles it, which are suspended environment and separated from it by interface. Hypothesis is supported numerous experimental data on their thermodynamic physical properties. Identification anomalies temperature dependences properties made possible determine values above superheating treatment (MST) leads destruction microheterogeneity, i.e., liquid structure transition (LLT) melt. LLT authors structural “microheterogeneous homogeneous solution” this expressed when heated determined for each composition (MST). This paper describes method theoretical determination range where thermodynamically stable. Thermodynamic stability medium estimated equations proposed Kaptay regular solution. It assumed that interface between with sizes 2 34 nm, distributed dispersion an increased carbon content. result assessment consistent size units viscous flow obtained earlier within framework theory absolute reaction rates.