Abstract
The presence of surface-active selenium in liquid steel has an obvious effect on the wettability between steel and inclusions, significantly affecting inclusion behaviors in liquid steel. In the current study, the influence of surfactant on the interaction between the refractory and liquid iron was investigated. The contact angles between the refractory and liquid iron with and without the selenium addition were measured using the sessile drop method at 1873 K. Besides, the interfacial reaction layer between the iron and refractory was investigated using scanning electron microscopy. It was found that the addition of selenium increased the contact angle between the iron and the refractory and affected the penetration behavior of liquid iron into the refractory.
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