Abstract
In this paper, a study of the centerline macrosegregation phenomenon which occurs often in the industrial casting of steel billets is described. Previous work on this subject was reviewed and it was concluded that the most likely explanation of this macrosegregation, is the occurrence ofinternal deformations in the solid, dendrite skeleton of the solidifying steel. After modelling these deformations, a simplified computational procedure to solve the transport and deformation equations describing the solidification process was devised. Care has been taken to ensure that the entire computational procedure can be implemented within a Computational Fluid Dynamics code, PHOENICS. The results of preliminary computations show good agreement between calculations and experiments and hence show that internal deformations in solidifying blooms and billets are the main cause of centerline macrosegregation.
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Janssen, R.J.A., Bart, G.C.J., Cornelissen, M.C.M. et al. Macrosegregation in continuously cast steel billets and blooms. Appl. Sci. Res. 52, 21–35 (1994). https://doi.org/10.1007/BF00849165
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DOI: https://doi.org/10.1007/BF00849165