A secondary recrystallization Lab study focusing on the secondary recrystallization temperature and magnetic properties was carried out on cold rolling industrial samples of 3%Si grain-oriented electrical steel produced by low slab reheating temperature technology. The results showed a secondary recrystallization temperature, determined by the observed grain size change, of 1080. °C with annealing interruption and of 1060. °C in annealing for 50. h at constant temperature. In addition, the best set of magnetic properties, the higher induction and the lower core loss values, was achieved by annealing the samples during 50. h at 1070. °C constant temperature.
Cardoso, A. V. de M., Paolinelli, S. da C., Silveira, C. C., & Cota, A. B. (2018). Secondary recrystallization characteristics of 3%Si grain-oriented electrical steel. Journal of Materials Research and Technology. https://doi.org/10.1016/j.jmrt.2017.12.002