Abstract
In this investigation the formation of centerline segregation and shrinkage holes in the final stages of solidification during the continuous casting process of slabs is described. Therefore experimental and theoretical investigations of the melt behavior during the solidification are carried out. Based on these results, a model is presented to explain the formation of V‐shaped segregation and core porosities caused by the restricted flow of melt through the mushy zone in slabs. The theoretical explanation is manifested by various observation, calculations and analyses by electron microprobe mappings. The main results are that V‐segregation forms in quasi periodical frequency in longitudinal direction within continuous cast slabs. The areas of formation seem to be independent, like little billets lying side by side in one slab. Consequential a three dimensional model about the behavior of the liquid melt in the final stages of solidification is designed.
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