Characterization of the solidification structure and texture development of ferritic stainless steel produced by twin-roll strip casting

In this paper, twin-roll cast strips of 17%Cr ferritic stainless steel were produced with a pilot caster. The effects of melt superheat on solidification structure and texture of cast strips were investigated, and the relationship between the percentage of equiaxed grains in the solidification structure and melt superheat was established. It was observed that the equiaxed grained strip exhibited a weak and random texture, and the columnar grained strip possessed a strong through-thickness fiber texture tilted by about 15° from the normal direction (ND) of the strip.