Dislocation core structures and γ-surfaces in the L10 phase were predicted by using embedded-atom interatomic potentials. The γ-surface studies of the (111) plane showed that no faults other than antiphase boundary, superlattice intrinsic stacking faults and complex stacking faults appeared to be stable on the close-packed planes. Various possibilities of perfect super-dislocation dissociation were considered on the basis of the dislocation-core splitting configuration and separation between partials, as revealed by atomistic computer simulations. Both ordinary and super-dislocations in various orientations were studied, and particular attention was paid to the formation mechanisms of non-planar core configurations.

Atomistic Simulation of Dislocation Core Configurations in TiAl J.Panova, D.Farkas: Philosophical Magazine A, 1998, 78[2], 389-404