ABSTRACT

The segregation of impurities can influence the solidification structure which in turn influences the crystallographic texture. The solidification structure determines the orientations of the crystals solidifying from the steel melt, and these crystals subsequently undergo solid-state transformations to give the resultant crystal structure, and hence determine the crystallographic texture. The temperature difference between the surface and inside of the specimen was subsequently estimated by observing the solidification structure of melts quenched in the crucible under different cooling conditions. The sequences of transitions in crystal morphology have been dynamically observed during the solidification of a medium- and a high-carbon steel. The engulfment or pushing of inclusions by the advancing solid–liquid interface during the solidification of steel has important relevance to the production of clean steel. Many theories have been proposed to explain the factors influencing the pushing or entrainment of inclusions for metals and alloys.