발간논문

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Vol.35, No.9, 1165 ~ 1175, 1997
Title
The Behavior of Dissolved Oxygen in Alumin um Killed SUS430 Steel Melt
박정현 , 백영현 , 윤우영 , 김동식 Jung Hyun Park , Young Hyun Paik , Woo Young Yoon , Dong Sik Kim
Abstract
In order to produce the high clean steel, control of dissolved oxygen in the melt is extremely important. Deoxidizing behaviors in the Al killed SUS430 melt were studied with the variation of synthetic CaO-SiO₂-Al₂O₃(CaF₂) slags. A new deoxidation limit considering the interfacial energy barriers for the nucleation of the oxides has been suggested and used to rationalize the experimental results. To improve a real deoxidization limit, a nucleation rate should be accelerated by decreasing interfacial energy. The basicity of the slags also affected the reoxidation of the melt and in turn the achievable deoxidation limit. The more SiO₂ content in the slag, the less deoxidation ability was expected.
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