| Title |
The Behavior of Dissolved Oxygen in Alumin um Killed SUS430 Steel Melt |
| Authors |
박정현(Jung Hyun Park) ; 백영현(Young Hyun Paik) ; 윤우영(Woo Young Yoon) ; 김동식(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. |