Materials Science Forum, Vol.512, 41-48, 2006
Effect of cooling rate on as-cast texture of low-carbon steel strips during rapid solidification
We investigated the dendrite structures and the as-east textures of low-carbon steel strips cast at different cooling rates in order to relate the delta-ferrite dendrite structure with the ferrite phase texture. Observations revealed that the orientation intensity of the texture component {111}< uvw > was stronger than the texture component {001}< uv0 > in the as-cast steel strips obtained at different solidification cooling rates. These two texture components show a roof-shaped variation with the gradual decrease of the solidification cooling rate, reaching a maximum intensity at a cooling rate of about 2.0 K/s. This suggests that the solidification rate strongly influences the as-cast texture of low-carbon steel strips through changing the delta-ferrite dendrite structure.
Keywords:rapid solidification;cooling rate;low-carbon steel;transformation texture;chill casting;as-cast texture