Study on transport of oxygen through CaO-MgO-Al2O3 slag from Molten Ultra-low Carbon Steel by Chronoamperometry

摘要：

　　The deoxidization reaction at the interface between slag and metal is one of the most important reactions in the iron and steel making.The interface reaction and transport characteristics of Molten Ultra-low Carbon Steel with CaO-MgO-Al2O3 slag system under different over potential conditions of the system was studied.The electrochemical reduction mechanism at the interface between the molten slag and molten steel was investigated.The results showed that Chronoamperometry method is very useful for the study of interfacial reaction in the slag-metal system.The current of interfacial reaction decreases approximately linearly with t-1/2,and the diffusion coefficient of oxygen in molten slag calculated by Cottrell equation increased dramatically with over potential.In the open circuit potential,the diffusion coefficient of oxygen in the slag is about 10-8m2/s.

关键词： slag-metal interfacial reaction Chronoamperometry diffusion coefficient transport of oxygen

作者: XU Ji-fang ZHANG Jie-yu LI Jian-chao SHENG Min-qi ZENG Tao WAN Kang

作者单位: Shagang School of Iron and Steel,Soochow University,Suzhou 215021,Jiangsu China;Shanghai Key Lab.of Shanghai Key Lab.of modern metallurgy & material processing,Shanghai University,Shanghai 200072,Chin Material Department,Vocational and Industry Institute of Hebei,Shijiazhuang 050091,China Shagang School of Iron and Steel,Soochow University,Suzhou 215021,Jiangsu China

会议类型: 国际会议

会议名称: The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2012-10-22（万方平台首次上网日期，不代表论文的发表时间）