There have been no theoretical calculations of the mixing enthalpies for
group B metal alloy systems using the famous Miedema theory or from first
principles. Therefore such systematic calculations for the 11 group IIB?IVB
and IIB?VB binary alloy systems are performed for the first time using a
subregular model. The results show that the agreement between the
calculations and experimental data is pretty good and could be accepted from
the theoretical or experimental points of view. It can be concluded from the
results that the subregular model can be used for calculating the mixing
enthalpies of the group B alloy systems, at least for the IIB?IVB and IIB?VB
alloy systems.