Recrystallization-induced plasticity

Using the dilatometric method, it has been found that during heating of the hardened Fe-3% Si alloy under loading, the deformation starts at a considerably lower temperature than regular creep takes place. The temperature of the start of the deformation is determined by the temperature of the start of recrystallization. The deformation induced by recrystallization increases exponentially with increasing load and temperature. An assumption has been made that the increased plasticity upon recrystallization appears as a result of lifting of spatial degeneracy under the effect of external stresses, appearing a preferred direction, and the oriented motion of defects along this preferred direction during recrystallization. Structural superplasticity can be considered as a result of dynamical recrystallization.