Ordering and segregation reactions in b.c.c. binary alloys

Abstract Within the Bragg-Williams-Gorsky approximation the most stable atomic configurations of b.c.c. solid solutions will be determined in dependence on two energy parameters W (1) and W (2) , the interchange energies between nearest and next-nearest neighbors. The most stable atomic configurations of homogeneous solid solutions (configuration diagrams) are presented for a representative set of values out of the whole range of W (1) and W (2) . From these results the most stable states of solid solutions, if heterogeneous concentration distributions are permitted (in the phase diagrams), are determined.