Abstract
The process for creating a new recrystallized grain by the bulging out of an existing grain boundary within the deformed structure was recognized by Beck and Sperry and described as strain induced boundary migration, often now as SIBM. For many years SIBM seemed to be accorded less significance than the subgrain growth models for nucleation of recrystallization. However, the importance of SIBM is increasingly recognized, for example in the case of cube texture development in aluminum alloys. There is increasing evidence that high angle boundaries in deformed metals are not only residues of the prior grain structure but may also be generated by the deformation itself. These also participate in the nucleation of recrystallization on annealing and must do so by some form of SIBM mechanism.
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