上产克大睾 Recrystallization SHEAMGRAI DUAD TONO UNTVEEETTY Laws of recrystallization For a given amount of deformation the recrystallization temperature will be increased by: >A larger starting grain size.(Grain boundaries are favoured sites for nucleation, therefore a large initial grain size provides fewer nucleation sites,the nucleation rate is lowered,and recrystallization is slower or occurs at higher temperatures.) >A higher deformation temperature.(At higher temperatures of deformation, more recovery occurs during the deformation(dynamic recovery),and the stored energy is thus lower than for a similar strain at a lower deformation temperature.) Institute of Forming Technology Equipment 25Recrystallization Institute of Forming Technology & Equipment 25 Laws of recrystallization  For a given amount of deformation the recrystallization temperature will be increased by:  A larger starting grain size. (Grain boundaries are favoured sites for nucleation, therefore a large initial grain size provides fewer nucleation sites, the nucleation rate is lowered, and recrystallization is slower or occurs at higher temperatures.)  A higher deformation temperature. (At higher temperatures of deformation, more recovery occurs during the deformation (dynamic recovery), and the stored energy is thus lower than for a similar strain at a lower deformation temperature.)