Analytic EAM model for the thermodynamic properties of the disordered solid solution and ordered intermetallic alloys of iron aluminides

A simple analytic embedded atom method for bcc Fe and fee Al metals is used to calculate the thermodynamic properties of the disordered solid solution and ordered intermetallic alloys of Fe aluminides. The thermodynamic properties, such as the dilute-limit heats of solution, formation enthalpies of disordered solid solutions and intermetallic compounds (Fe3Al in the D0(3) structure type, FeAl in the B2 structure type, and Fe13Al3) are in good agreement with the experimental data, and with the results calculated using the first principles and Miedema theory.