The dislocation-accumulation mechanism was studied in alloys with the L12 superstructure. The latter was associated with the formation of Kira-Wilsdorf barriers and with the retardation of super-dislocations during plastic deformation. A model for the dislocation accumulation kinetics during plastic deformation was constructed and, on this basis, a mathematical model was formulated for the thermal and deformation strengthening of single crystals of alloys with this superstructure. The results of numerical calculations that were based upon the model were compared with experimentally observed regularities in the deformation and thermal strengthening of single crystals of Ni3Ge.

Accumulation of Dislocations and Thermal Strengthening of Alloys having an L12 Superstructure. V.A.Starenchenko, J.V.Soloveva, J.A.Abzaev: Fizika Tverdogo Tela, 1999, 41[3], 454-60 (Physics of the Solid State, 1999, 41[3], 407-12)