Abstract

The CALPHAD method is used for thermodynamic description of binary copper systems with transition metals based on data on the thermodynamic properties of phases and phase transformations. The parameters of models describing the temperature-concentration dependence of thermodynamic functions of mixing are obtained, and the phase diagrams of the systems are calculated. An analysis of the models makes it possible to establish the behavior of the temperature-concentration dependence of the excess thermodynamic functions of mixing for liquid alloys with different types of interaction of the components and to calculate the excess heat capacity. A correlation between the excess heat capacity of liquid alloys and the mixing enthalpy is established.

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