Two mechanisms for the formation of strings of dislocation loops were considered. In one of them, strings resulted from the coalescence of 2 jogged segments that originated from the same dislocation. In the other, strings resulted from the local cross-slip annihilation of dipoles formed by 2 unjogged dislocations. The latter mechanism was the more consistent with observations.

Properties of <110]{111} Slip in Al-Rich γ-TiAl Deformed at Room Temperature - II. The Formation of Strings of Prismatic Loops. P.Veyssière, F.Grégori: Philosophical Magazine A, 2002, 82[3], 567-77