Improvement of Texture and Magnetic Properties in 4.5 wt.% Si Grain-Oriented Electrical Steels

4.5 wt.% Si grain-oriented electrical steel sheets were successfully produced by hot rolling, normalizing, warm rolling and annealing, and texture evolution was investigated using macro-and micro-texture analysis. It is found that the recrystallization texture of sheets is very sensitive to the warm rolling reduction, and 83-87% warm rolling reductions are more favorable to. texture (< 100 >//RD, rolling direction) evolution during secondary recrystallization, and consequently the magnetic induction B-8 is significantly improved to 1.69-1.70 T in this rolling reduction range. The decreased B-8 in the 89% warm rolled sheet is ascribed to the obviously decreased primary recrystallization. fiber, which leads to the insufficient quantity of. grains in the early stage of abnormal grain growth. The results obtained in the current work can provide an efficient way to improve the recrystallization texture of 4.5 wt.% Si grain-oriented electrical steel sheets.