The effects of superheating on texture and microstructure of Fe-4.5wt%Si steel strip by twin-roll strip casting

Fe-4.5wt%Si strips were produced using a vertical type twin-roll strip casting process. The effect of superheat on the microstructure and texture was studied through thickness direction of the as-cast strips. The heterogeneity of texture and microstructure through thickness direction of the strips was observed. In the case of superheat 20 degreesC, Goss texture evolved between the subsurface and the middle layer and major rolling texture with minor solidification texture evolved in the center layer. In the case of superheat 30 degreesC, solidification texture of {100}[uvw] fiber evolved from the surface to the center layer.