A simple model describing correlation functions and domain structure of the simulated ordering of AB alloys

Abstract

To explain some general features of the correlation functions and the antiphase boundary structure of a simulated 1:1 AB alloy, a simple model has been developed on the basis of the short-range order parameter as a function of time. As a central parameter in the description of the domain structure, the customary metallographic notion of line intercept is used here limited to lines parallel to the three bond directions of the simple cubic crystal structure studied. The model is capable of explaining a number of details of the experimental correlation functions and the intercept distribution.