Thermodynamics of exogenous nanophases in metal melts

Abstract

The conditions of the stability of heterophase disperse systems obtained by the exogenous introduction of nanosized solid phases in metal melts were considered by assuming the formation of thick and thin elastic films and disjoining pressure at the contact boundary of particles of disperse phase. The introduced criteria are expressed in the measured interface characteristics, i.e., surface tension and contact angles. The prospects for using a series of compounds of the Periodic system’s IV–VI group metals as exogenous modifiers of nickel-based alloys are assessed on the basis of our experimental data.