Thermodynamics of Nitrogen and AlN Formation in High-Al, High-Mn Alloyed Steels Containing Si and C

摘要：

　　The simultaneous effect of alloying elements on the activity coefficient of nitrogen in multi-component liquid iron melt containing Al,Mn,Si and C was determined over wide ranges of melt composition at 1873K.The specific effect of those alloying elements on nitrogen solubility and AlN formation in liquid iron was determined previously by the present authors using the metal-gas and metal-nitride-gas equilibration techniques.Thermodynamic parameters determined in the present study and the authors previous studies can be used to estimate the critical nitrogen content for the onset of AlN formation in Fe-Mn-Al-Si-C alloys.A commercial TWIP steel melt containing 130ppmN was cooled from 1823K to the solidification temperature in order to check the AlN inclusion formation in the melt as a function of temperature.

关键词： AlN formation TWIP steel nitrogen solubility interaction parameter

作者: Jung-Mock JANG Seok-Hyo SEO Min-Kyu PAEK Jong-Jin PAK

作者单位: Dept.of Materials Engineering,Hanyang University ERICA,Ansan,426-791 Korea

会议类型: 国际会议

会议名称: the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)

会议地点: 北京

会议语种:英文

页码: 858-861

在线出版日期: 2015-05-12（万方平台首次上网日期，不代表论文的发表时间）