A new model to predict grain nucleation during dynamic recrystallization

Submitted by ystarase on Sun, 06/23/2013 - 04:55

Deformation in metals and alloys is accompanied by high hardening rates and high dislocation

content. Static annealing of deformed metals or forming operations at elevated temperatures can

lead to static and dynamic recrystallization (SRX and DRX). The resultant texture and hence the

properties of such a material are determined by the nucleation and growth of recrystallized grains

conditioned by the deformation. Nucleation in this research is postulated to occur in

regions of the microstructure that have high (locally) stored energy adjacent to a low Nye tensor

(relatively undeformed) zone.