Abstract
Abstract A model for static recrystallization following hot deformation is developed by generalizing a previous model for hor working. In particular, the consequences of hot working occurring by dynamical recrystallization on static recrystallization are investigated. The recrystallized fraction ƒ(t) , the average migrating area A, and the average velocity gu of the migrating boundaries are evaluated and compared to experimental results of Glover and Sellars on pure α-iron. It is shown that the model gives a natural explanation why the Avrami exponent k[ƒ(t) = 1 − exp (−βt k )] is lower for static recrystallization following dynamic recrystallization than for static recrystallization after dynamic recovery. Furthermore the model explains the different behaviour of gu in the two cases just mentioned.
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