Abstract
Abstract A theoretical treatment for calculating the heats of formation of binary alloys for any composition is put forward. The model is based upon the assumption that the free electrons in a binary alloy exist in two sets of energy levels associated with the potential fields of the ions of the two elements in the alloy. This assumption is a natural consequence of neglecting the changes in the Wigner-Seitz boundary conditions, imposed upon the electrons in the pure elements, when the atoms are randomly mixed in an alloy. Fair agreement between calculated and experimental heats of formation is obtained for many systems, in which the two elements composing a given system are not too far removed from one another in the periodic classification of the elements.
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