Simulation of Oxygen and Nitrogen Removal from Steel by Means of Titanium and Aluminum

Archives of Metallurgy and Materials

D. Podorska¹  J. Iwanciw¹  J. Wypartowicz¹ 

[1] Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, 30-059 Kraków, 30 Mickiewicza Av., Poland

关键词: Keywords: steel refining;    computer simulation;    aluminium;    titanium;    nitrides;    oxides;   

DOI  :  10.2478/v10172-011-0069-x

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Authors' computer program was employed in the simulation of the course of steel refining by means of simultaneously used aluminium and titanium. The mass and chemical composition of liquid steel and non-metallic precipitates, were calculated at constant or variable temperature. The influence of assumed nitrides form on the results of simulation was determined. Nitrides may be considered either as separate phases or as the components of non-metallic solution. The stoichiometry of titanium oxide obtained also influences the results of simulation. Parallel analysis of steel refining was carried out with the use of FactSage program. As a result of calculations the subsequent states of equilibrium between steel and non-metallic phase were determined. It was found that aluminium and titanium nitrides may exist only as the components of oxide-nitride solution, not as separate phases.

【 授权许可】

Unknown