Thermodynamic behavior of Si in Mn-Si melts

摘要：

　　Thermodynamics of Si at low concentration in Mn-Si melt was studied by measuring the equilibrium Si content in the melt in equilibrium with MnO saturated MnO-SiO2 slag.The equilibrium Si contents were determined as 1.32 and 1.78 mass% at 1673 and 1773K,respectively.The experimental results were analyzed using the unified interaction parameter formalism and the available data for the partial enthalpy of solution of silicon in Mn-Si melt.The activity coefficient of Si at infinite dilution,Si γ°Si and the self-interaction parameters of Si in Mn-Si melt were determined as a function of temperature.Using the thermodynamic parameters determined in the present study,the Si content in Mn-Si melt in equilibrium with SiO2 saturated MnO-SiO2 slag could be also predicted,and it was in good agreement with the experimental data.

关键词： ferromanganese alloy thermodynamics Silicon activity coefficient interaction parameter

作者: JANG Jung-Mock PEAK Min-Kyu JIN Jinan KANG Youn-Bae PAK Jong-Jin

作者单位: Department of Metallurgical and Materials Engineering,Hanyang University,Ansan,Korea Graduate Institute of Ferrous Technology,Pohang University of Science and Technology,Pohang,korea

会议类型: 国际会议

会议名称: Asia Steel International conference 2012(第五届亚洲钢铁大会)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2012-09-23（万方平台首次上网日期，不代表论文的发表时间）