In situ straining experiments on a Ni-25.9at%Al alloy at room temperature indicated that the density of incomplete Kear-Wilsdorf locks was high during deformation. The model of mechanical properties which was based upon their unlocking by an intrinsic cross-slip process was described, and compared with the alternative kink model. The results indicated that the alloy investigated had a higher complex stacking fault energy than did stoichiometric Ni3Al.

On the Role of Incomplete Kear-Wilsdorf Locks in the Yield Stress Anomaly of Ni3Al. Caillard, D., Molénat, G., Paidar, V.: Materials Science and Engineering A, 1997, 234-236, 695-8