Study of the microstructure and mechanical properties of steel cast using plasma heating in a CBCM tundish

Abstract

The effect of technology for steel plasma heating in a CBCM tundish developed and assimilated for the first time within Russia on macrostructure and mechanical properties of a CCB is considered. It is shown that the technology provides a reduction in the degree of steel overheating above the liquidus temperature during casting. There is an increase in macrostructure uniformity, average level of slab metal ductility indices, and impact strength from the start to end of melting, and also a reduction in property scatter over both slab width and thickness.