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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

NUMERICAL INVESTIGATION OF THE MACRO-SEGREGATION LEVEL IN CONTINUOUS CASTING OF CARBON STEEL

Get access (open in a dialog) DOI: 10.1615/IHTC11.3900
pages 331-336

Resumo

The influence of the forced convection, the shrinkage-induced interdendritic fluid flow and the solute diffusion in the liquid phase on macrosegregation in thin strip casting is investigated numerically. It is shown that depending on the permeability of the mushy zone three regimes of macrosegregation are possible. For small permeability of the mushy zone the solute transport in the strip is mainly governed by the interdendritic fluid flow which compensates for shrinkage. For large permeability of the mushy zone the solute transport is mainly governed by forced convection. Between these two regimes these is an intermediate regime when these two phenomena balance each other. This regime corresponds to the minimum macrosegregation level in the strip.