In the paper,the corrosion test between the mold flux and the ZrO2-C refractories at the slag line of nozzles under the action of applied direct current electric field was carried out using the ro-tating stirring method.The effect of the electric field on their interface behavior was studied.The re-sults show that with the increase of the applied voltage,the adhesion amount of the mold flux on the surface of the nozzle refractories gradually increases.When the applied voltage is 0,5 and 10 V,the corresponding adhesion thickness of the mold flux is 2,3 and 7 mm,respectively.The microstructure shows that the electric field at the interface can significantly change the wettability between the mold flux and the nozzle refractories,which provides a good dynamic condition for the diffusion,mass trans-fer and penetration behaviors of the mold flux to the nozzle,and intensifies the corrosion of the mold flux on the refractories.
direct current electric fieldmold fluxnozzle slag linezirconia-carbon refractorieselectrical effectcorrosion
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