The formation of dislocation networks at /’ interfaces in a monocrystalline super-alloy was studied after deformation at 1223K. It was found that the dislocation sub-structure was quite different on interfaces that were parallel and perpendicular to the applied stress direction. Reactions between glide dislocations were observed on the latter type of interface. The results were explained in terms of a cross-slipping which led to dislocation interaction.

H.Gabrisch, D.Mukherji, R.P.Wahi: Philosophical Magazine A, 1996, 74[1], 229-49