Abstract

This chapter is devoted to establishing relatioships among phase diagrams, thermodynamic properties of alloys, and their microstructure. A systematic review of the classical Gibbsian thermodynamics was performed, followed by its extension to equilibrium concentrationally nonuniform systems given by Cahn, Hilliard, and Allen. The generalization of their early approach by Khachaturian and Chen allowed to develop a powerful group of microstructure evolution modeling techniques called “phase-field” approach. The most recent developments in phase field simulations were reviewed along with the available software for microstructure evolution of aluminum alloys.

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