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Article Dans Une Revue Journal of Iron and Steel Research International Année : 2022

Effect of vertical electromagnetic stirring on solute distribution in billet continuous casting process

Résumé

A volume averaged columnar solidification model, which couples the flow, temperature and solute concentration fields, is applied to simulate experimental casting cases with and without vertical electromagnetic stirring (V-EMS). The calculated distribution of electromagnetic intensity and final macrosegregation maps are consistent with the experimental results. Calculation results reveal that the V-EMS promotes longitudinal melt flow, accelerates heat dissipation, shortens the solidification end and reduces the central segregation of carbon. However, when V-EMS is applied, the solute distribution becomes asymmetric because the melt flow shows opposite directions between the near and far sides from stirrer. An obvious positive segregation band is observed at about 1/4 width of the billet near the stirrer in both calculated and experimental results. The position and degree of such positive segregation could be affected by installation height of stirrer, as demonstrated by additional simulation cases.
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Dates et versions

hal-03738777 , version 1 (26-07-2022)

Identifiants

Citer

Tao Wang, En-Gang Wang, Yves Delannoy, Yves Fautrelle, Olga Budenkova. Effect of vertical electromagnetic stirring on solute distribution in billet continuous casting process. Journal of Iron and Steel Research International, 2022, 29 (1), pp.132-143. ⟨10.1007/s42243-021-00685-0⟩. ⟨hal-03738777⟩
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