Revealing the recrystallization behavior of an excellent strip casting 4.5 wt% Si non-oriented electrical steel

Authors

Guoqing Zu
Yufan Wang
Jingwei Zhao, University of WollongongFollow
Yi Yan
Xiaoming Zhang
Xu Ran
Zhengyi Jiang, University of WollongongFollow

RIS ID

142683

Publication Details

Zu, G., Wang, Y., Zhao, J., Yan, Y., Zhang, X., Ran, X. & Jiang, Z. (2020). Revealing the recrystallization behavior of an excellent strip casting 4.5 wt% Si non-oriented electrical steel. Materials Characterization, 163

Abstract

© 2020 Elsevier Inc. An excellent 4.5 wt%Si non-oriented electrical steel was fabricated by warm rolling and isothermal annealing of twin-roll cast strip. The detailed evolution of microstructure and texture was studied using the combination of electron back-scattering diffraction (EBSD), X-ray diffraction (XRD) and transmission electron microscope (TEM) for revealing the recrystallization behavior. The favorable {100}〈013〉 nuclei originate in the shear bands within deformed {111}⟨11-2⟩ and {110}⟨1-10⟩ grains. Based on the EBSD analysis, oriented nucleation is the predominant mechanism for the formation of strong {100}⟨013⟩ texture. The rearrangement of dislocations and cell transformation to sub-grains were characterized. The mechanisms of (sub-)grain coalescence, as well as strain induced grain boundary migration, take effect simultaneously, during the nucleation.