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The equilibrium of the solid-liquid interface in pressurized solidification process of binary alloys was studied using the Gibbs theory, and the stability of the solid-liquid interface was discussed based on the consideration of the effects of pressure on the diffusion coefficient, the interface growth rate and the equilibrium liquid composition. A mathematical description of the equilibrium status, the relationship of temperature, pressure, composition and interfacial tension was obtained, and further, a mathematical representation of the curvature radius of solid-liquid interface was developed, which facilitates a thorough understanding of the controlled variables of the interfacial stability. pressurized solidification, binary alloy, interfacial equilibrium, interfacial stability Citation:Huang X R, Han Z Q, Liu B C. Study on the effect of pressure on the equilibrium and stability of the solid-liquid interface in solidification of binary alloys.

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