Comparative study on interaction between rare earth oxide refractories and rare earth treated steel  

作　　者：Ze Meng Guang-qiang Li Cheng Yuan Yi-jiang Zhao Qing Zheng Bin Zeng Yu Liu 

机构地区：[1]The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan,430081,Hubei,China [2]Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan,430081,Hubei,China [3]Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking,Wuhan University of Science and Technology,Wuhan,430081,Hubei,China [4]Technical Center,Lianyuan Iron and Steel Co.,Ltd.,Loudi,417009,Hunan,China

出　　处：《Journal of Iron and Steel Research International》2024年第6期1493-1501,共9页

基　　金：the National Natural Science Foundation of China(Nos.U1860205 and 52004189);Project of Hubei Provincial Department of Science and Technology(Nos.2022BAA021 and 2022CFB051);China Postdoctoral Science Foundation(Nos.2022M721109 and 2023T160210);Young Elite Scientists Sponsorship Program by CAST(No.2022QNRC001).

摘　　要：Refractories have an important effect on the cleanliness of molten steel.The interaction between CeAlO_(3) refractories and Ce treated steel was explored and compared with that between Al_(2)O_(3) refractories and Ce treated steel.The results show that the Ce content in steel decreases sharply after contact with Al_(2)O_(3) refractories and the pick-up of dissolved Al occurs.Compared with the test of Al_(2)O_(3) refractories,the loss of Ce content is less in the test of CeAlO_(3) refractory,and the total oxygen content and dissolved Al content in steel increase less.The dense and continuous Ce_(2)O_(2)S interface layer is observed at the CeAlO_(3) refractories/steel interface,which can serve as the metallurgical isolation layer and hinder the further interaction between refractories and steel.Therefore,the higher steel cleanliness and less penetration of refractories by molten steel are obtained in the test of CeAlO_(3) refractories.The CeAlO_(3) refractories show a promising prospect in the production of clean Ce treated steel.

关 键 词：CeAlO_(3)refractory Steel Cleanliness INTERACTION Rare earth 

分 类 号：TQ1[化学工程]