A model for work of solid–liquid adhesion in multicomponent melts

The thermodynamic work of solid–liquid adhesion in multicomponent melts is important in many fields. Quantitative calculation of the work of solid–liquid adhesion has not, however, been well developed. A model for quantitative calculation of the work of solid–liquid adhesion in a multicomponent melt has been proposed based on the expansion of the Maclaurin infinite series in the neighborhood of each pure component of the binary alloy. The parameters used in this model are assessed through the statistical thermodynamic model of surface and interface tensions, which is based on the monolayer approximation for metal–vapor and metal–solid interfaces and Bragg–Williams statistics. According to the present model, the work of adhesion–concentration dependency over the whole concentration range for binary alloy can be theoretically determined from only the physical parameters of the pure components. The model has been successfully applied to calculate the work of adhesion for various solid–liquid systems.