A model was proposed that was based upon a competition between 2 different cross-slip mechanisms onto the cube plane. Cross-slip and glide over interatomic distances were shown to occur via a kink-pair or double-jog mechanism, whereas cross-slip and glide over large distances occurred via a cross-slip or critical bow-out mechanism. By assuming that the kink-pair mechanism was easier than the cross-slip mechanism, analytical expressions were obtained for the strain and temperature dependences of the yield stress and strain-hardening coefficient. These were in fairly good agreement with experimental results.

D.Caillard: Acta Materialia, 1996, 44[7], 2773-85