It was found that increasing the Fe content caused the room-temperature deformation microstructure to change from one with screw super-dislocations that were locked in the Kear-Wilsdorf configuration, to one with edge and mixed super-dislocations that glided on the cube plane. This was concomitant a transition in macroscopic yield behavior. A decrease in the antiphase boundary energy on the cube plane was detected, and was related to changes in the cross-slip process; but not to the onset of cube glide.

Relating  Alloy  Chemistry, Dislocation Structure and Flow Strength in the (NixFel-x)3Ge System T.J.Balk, M.Kumar, K.J.Hemker: Scripta Materialia, 1998, 39[4-5], 577-82