The spatial dependence of the interaction energies of self-point defects (vacancies and self-interstitial atoms in stable, metastable and saddle-point configurations) with edge dislocations in slip systems <111>{110} and <100>{100} in body-centred cubic Fe and <110>{111} in face-centred cubic Cu was calculated by using the anisotropic theory of elasticity and molecular statics (hybrid method). The migration pathways of vacancies and self-interstitial atoms (<110> dumb-bell in Fe and <100> dumb-bell in Cu) along which the migration of the defects with the lowest energy barriers were defined in the presence of the dislocation stress fields. These pathways were significantly different in the stress fields of dislocations.

Anisotropy Migration of Self-Point Defects in Dislocation Stress Fields in BCC Fe and FCC Cu. A.B.Sivak, V.M.Chernov, N.A.Dubasova, V.A.Romanov: Journal of Nuclear Materials, 2007, 367-370[1], 316-21