上产克大睾 Recrystallization SHEAMGHAI DUD TONO UHTVEREETTY Recrystallization kinetics The volume fraction of material recrystallized(Xy)as a function of log(time) The characteristic sigmoidal form An apparent incubation time before recrystallization;followed by an increasing rate of recrystallization,a linear region,and finally a decreasing rate of recrystallization. & Impingement of growing grains Nucleation Log Time Typical recrystallization kinetics during isothermal annealing Institute of Forming Technology Equipment 23Recrystallization Institute of Forming Technology & Equipment 23 Recrystallization kinetics  The volume fraction of material recrystallized (XV) as a function of log(time)  The characteristic sigmoidal form  An apparent incubation time before recrystallization; followed by an increasing rate of recrystallization, a linear region, and finally a decreasing rate of recrystallization. Typical recrystallization kinetics during isothermal annealing