EFFECTS OF THE INTERACTION BETWEEN ORDER-PARAMETER AND CONCENTRATION ON THE KINETICS OF ANTIPHASE BOUNDARY MOTION

The microscopic mean-field kinetic equation introduced previously is u sed to investigate the motion of an antiphase boundary (APB) after the quench of a disordered alloy below the ordering spinodal. A strong in teraction between order and concentration fields in non-stoichiometric alloys results in a peculiar evolution of the structure of an APB and in unusual concentration, temperature and time dependence of the kine tic coefficients for its motion.