Abstract: Effect of different annealing time at 850 ℃ on the microstructure and texture of 1.0%Si non-oriented silicon steel cold-rolled sheets was investigated by means of characterization techniques such as EBSD and XRD. The results indicate that the cold-rolled sheets undergo recrystallization when annealed at 850 ℃ for 90 s. The texture type transforms from strong α and rotated cube texture {001}<110> to γ texture {111}<112> and α^* texture. When annealed from 90 s to 180 s, the grain size gradually increases, with the average grain size growing from 14.2 μm to 21.3 μm. The α^* texture and rotated cube texture {001}<120> strengthen gradually, the magnetic induction B₅₀₀₀ increases from 1.55 T to 1.63 T, and the iron loss P_1.5/50 decreases from 4.213 W/kg to 3.832 W/kg.

Key words: non-oriented silicon steel, process optimization, texture, annealing