It was recalled that a recent simulation of dislocation dynamics in L12 alloys had furnished new insights into the problem of the strength anomalies observed in such materials. The results of this simulation were compared with those of previous analytical models. Some interesting consequences were deduced, with regard to strain-rate sensitivity and work-hardening rate, by combining results from these models.

Comment on a Simulation of Dislocation Dynamics and the Flow Stress Anomaly in L12 Alloys F.Louchet: Philosophical Magazine A, 1998, 77[3], 761-8