The effect of atomic order on the thermodynamic properties of the martensitic transformation in CuZn and CuZnAl alloys

A model recently proposed to account for the influence of the β-phase atomic order on the martensitic transformation of binary alloys is generalized to the ternary case. The functional dependence of the transition temperature obtained in both cases is tested on available data for CuZn and CuZnAl. The results show that the coupling term introduced between strain and atomic order is consistent with experimental data.