Within the framework of the generalized Ising model, the factors stabilizing the 18R1 structure and maintaining the fcc → 18R1 transition were established. A computer modeling employed showed that these factors were external shear stress and many-body interactions. The stacking fault density and energy were calculated. Their dependence on temperature and external stress were considered. It was shown that the long-range parameter (in 10 coordination spheres) considerably affects the width of the defect region during the 18R1→fcc transition.

Stacking Faults in Non-Equilibrium fcc → 18R1 Transformation. C.L.Gafner, V.N.Udodov, A.I.Potekaev: Russian Physics Journal, 2002, 45[12], 1170-5