钢铁钒钛2025，Vol.46Issue(3)：25-31,7.DOI:10.7513/j.issn.1004-7638.2025.03.005
铝热还原FeV50合金杂质成分预测及控制研究
Impurities composition prediction and control of FeV50 alloy by aluminothermal reduction
摘要
Abstract
The thermodynamic behavior of typical impurity elements in the preparation process of FeV50 alloy by aluminum thermal reduction and their stable occurrence state in the alloy were ana-lyzed,and the distribution law of impurity elements under specific slag characteristics conditions was investigated.The control standards for impurity elements were established.The results indicate that the migration and occurrence of typical impurity elements in aluminum thermal reduction system are re-lated to the smelting stage and slag characteristics.During the aluminum thermal reduction process,weak reducing impurity elements such as Fe,Mn,Si,C,P,S,etc.have the thermodynamic feasibility to be reduced by metallic aluminum and entering the alloy phase.The reduced Fe,Mn,and Si exist in ele-mental form,while C,P,and S may react with the alloy matrix elements V and Fe to form VC,Fe3P,and FeS,respectively.After the aluminothermal reaction,non-metallic impurities in the alloy gradually diffuse into the slag,and their diffusion ability is mainly determined by the characteristics of the slag.Under specific slag composition conditions dominated by vanadium oxide reduction,the average distri-bution coefficients of Si,Mn,C,P and S in the alloy are 76.9％,89.7％,255.0％,87.6％and 28.7％,and the corresponding upper limits of impurity control for unit raw materials that meet the FeV50-A stand-ard requirements are 4.0％,1.0％,0.6％,0.13％,and 0.12％,respectively.关键词
铝热还原/FeV50/合金成分/分布规律/控制标准Key words
aluminothermal reduction/FeV50/alloy composition/distribution regularity/control standards分类
矿业与冶金引用本文复制引用
余彬,叶明峰,王宁,黄云,高雷章,尹丹凤,陈海军..铝热还原FeV50合金杂质成分预测及控制研究[J].钢铁钒钛,2025,46(3):25-31,7.基金项目
四川省重大科技专项(2023ZDZX0004) （2023ZDZX0004）
