A Comparative Study of Microstructure and Texture Evolution in Cu-Bearing and Nb-Bearing Grain Oriented Silicon Steels
Yang Wang, Feng Fang, Xiang Lu, Yuan-Xiang Zhang, Yun-Bo Xu, Guang-Ming Cao, Cheng-Gang Li, R. Devesh Kumar Misra and Guo-Dong Wang
Version of Record online: 26 JUL 2016 | DOI: 10.1002/srin.201600181
The microstructure and texture evolution between Cu-bearing and Nb-bearing silicon steel is compared. The mainly grain growth inhibitors in Cu-bearing and Nb-bearing silicon steels are CuMnS and NbCN, respectively. The results indicate that the pinning strength of Nb-particles is much stronger than Cu-particles, and the Goss zone (Region II) in Nb- bearing hot rolled sheets, which act as the nuclei for secondary recrystallization is reduced. Therefore, the magnetic properties of Nb-bearing silicon steel are inferior, compared to Cu-bearing silicon steels.