On the nucleation of recrystallization by a bulging mechanism: A two-dimensional vertex simulation

The nucleation of grains by subgrain growth has been investigated using a two-dimensional vertex model. The initial geometry has an on average flat grain boundary, separating two populations of subgrains. The phenomenon has been studied using (i) a constant ratio between the subgrain and the grain boundary mobility or energy and (ii) simple relations for the misorientation dependencies of these two quantities. Bulging of grain boundaries owing …