The thermodynamic properties of the various phases existing in the Cr-
Si system were derived from a least-squares optimization procedure usi
ng experimental phase diagram and thermodynamic data. Several versions
of the system were calculated, which differed by whether Cr3Si and Cr
Si2 were assumed to be stoichiometric or not. The different sets of th
ermodynamic parameters are presented, as well as the corresponding pha
se diagrams.