The Eftects of Superheating on Texture and Microstructure of Fe-4.5wt%Si Steel Strip by Twin-roll Strip Casting.

Abstract

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°C, 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°C, solidification texture of {100}͗uvw͘ fiber evolved from the surface to the center layer.

Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe-6.5 wt% Si non-oriented electrical steel

“…On the one hand, it can create extremely fine solidification microstructure owing to its relatively high cooling rate. On the other hand, it can generate desired microstructure and texture in the initial as-cast sheet [9][10][11][12][13][14], which has an influence on the evolution of microstructure and texture during rolling and annealing and the final properties [15][16][17][18][19][20][21][22]. Thus, it may be a new promising low-cost and compact way to produce 6.5 wt% silicon steel sheet by means of strip casting and rolling method.…”

Development of λ-fiber recrystallization texture and magnetic property in Fe–6.5wt% Si thin sheet produced by strip casting and warm rolling method

“…Strip casting produces thin sheets directly from the melt and generates the desired texture in the as-cast state [7][8][9][10][11][12]. In the present work, an Fe-6.5 wt%Si-0.3 wt%Al as-cast sheet was produced by the twin-roll strip casting process, and followed by hot rolling, warm rolling and annealing.…”

Effect of annealing after strip casting on texture development in grain oriented silicon steel produced by twin roll casting

“…This advanced and energy-efficient technology has attracted significant attention and different strip-cast steels such as low carbon steel [7][8][9][10], stainless steel [11][12][13][14][15][16] and silicon steel [17][18][19][20][21][22][23][24][25] have been studied. The previous studies [11][12][13][14][15][16][17][18][19][20][21][22][23] indicated that the strip casting had texture advantage in manufacturing stainless steel and nonoriented silicon steel, resulting in excellent formability and magnetic properties. However, the texture requirement of grain oriented silicon steel is different from the non-oriented silicon steel and the microstructure and texture of as-cast grain oriented silicon strip are undesirable compared to the conventional hot-rolled sheet [25].…”