Effects of Normalization Process on Microstructure and Texture of Non-oriented Electrical Steel Produced by Ultra-Thin Strip Casting

The ultra-thin strip castingUltra-thin strip casting technology has unique advantages in the production of non-oriented electrical steels with strong λ-fiber textureTexture. This article looked at non-oriented electrical steel with 2.43 wt% Si. Dip tester was used to simulate strip casting process for obtaining the electrical steel cast strip, and then hot rolling was performed at various reduction rates. Effects of normalizingNormalizing temperatures and soaking time on microstructure and textureTexture of electrical steel samples were investigated across full thickness. The results show that the grain size changes little, and the normalized texture is similar to that of the hot-rolled sheet, but the normalization can enhance the strength of the λ-fiber textureTexture and improves magnetic properties. In addition, increasing soaking time is beneficial to the nucleation and growth of recrystallized grains, which has less effect compared to normalization temperature.