Simulation-aided analysis of ferrite recrystallization behavior of pure iron with different dislocation characters

We investigated the ferrite recrystallization behavior of pure iron with different dislocation characters. Two types of specimens with almost the same dislocation densities and different dislocation characters were prepared. The edge dislocation density in specimen A was larger than that in specimen B, whereas the screw dislocation density in specimen B was larger than that in specimen A. Ferrite recrystallization progressed faster in specimen A than in specimen B. Furthermore, cellular automaton simulation proved that changes in ferrite recrystallization behavior due to the dislocation character are attributed to the difference in the driving force for recrystallization and the activation energy for recovery in each specimen. Thus, we found that the difference in the dislocation character can affect the ferrite recrystallization behavior of pure iron.& COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Automated summary

This study investigated the ferrite recrystallization behavior of pure iron with different dislocation characters. Two types of specimens with similar dislocation densities but different dislocation characters were prepared. Ferrite recrystallization progressed faster in one specimen compared to the other. Cellular automaton simulation showed that the differences in ferrite recrystallization behavior were attributed to variations in the driving force for recrystallization and activation energy for recovery in each specimen. Thus, the dislocation character was found to have an impact on the ferrite recrystallization behavior of pure iron.