Mechanisms were proposed for the formation of antiphase boundary tubes at incomplete and complete Kear-Wilsdorf locks and jogs on (010) in edge dislocations which glided on (111). The edge dislocations bypassed the locks, and turned them into screw dipoles. These then transformed by glide on (010), (111) and (1¯11), and cross-slipped into antiphase boundary tubes. The mechanisms operated provided that the lattice friction on a jog on (010) was relatively high. The mechanisms explained the detailed nature of the cusps in glide dislocations to which the antiphase boundary tubes were connected. It was suggested that the relatively high lattice friction on jogs on (010) in edge dislocations was a major cause of work hardening in this intermetallic compound.

Kear-Wilsdorf Locks, Jogs and the Formation of Antiphase-Boundary Tubes in Ni3Al. Hirsch, P.B.: Philosophical Magazine A, 1996, 74[4], 1019-40