State-of-art of in situ observations of inclusion agglomeration at steel/Ar and steel/slag interfaces:a review of recent development on experimental and theoretical studies  

作　　者：Yi Wang Jian-xun Fu Deepoo Kumar Qiang Wang Hong-liang Yang Wang-zhong Mu 

机构地区：[1]Center for Advanced Solidification Technology(CAST),School of Materials Science and Engineering,Shanghai University,Shanghai,200444,China [2]Department of Materials Science and Engineering,KTH Royal Institute of Technology,Stockholm,10044,Sweden [3]Engineering Materials,Division of Materials Science,Department of Engineering Science and Mathematics,LuleåUniversity of Technology,Luleå,97187,Sweden [4]Department of Metallurgical Engineering and Materials Science,IIT Bombay,Powai,Mumbai,India [5]Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern University,Shenyang,110819,Liaoning,China [6]ABB Metallurgy,Västerås,72136,Sweden

出　　处：《Journal of Iron and Steel Research International》2025年第2期315-333,共19页钢铁研究学报(英文版)

基　　金：the National Natural Science Foundation of China(Grant No.52074179)for the financial support;National Key Research and Development Program of China(2024YFB3713705)is also acknowledged.

摘　　要：Cleanliness control of advanced steels is of vital importance for quality control of the products.In order to understand and control the inclusion removal during refining process in molten steel,its motion behaviors at the multiple steel/gas/slag interfaces have attracted the attention much of metallurgical community.The recent development of the agglomeration of non-metallic inclusions at the steel/Ar and steel/slag interfaces has been summarized,and both the experimental as well as theoretical works have been surveyed.In terms of in situ observation of high-temperature interfacial phenomena in the molten steel,researchers utilized high-temperature confocal laser scanning microscopy to observe the movement of more types of inclusions at the interface,i.e.,the investigated inclusion is no longer limited to Al_(2)O_(3)-based inclusions but moves forward to rare earth oxides,MgO-based oxides,etc.In terms of theoretical models,especially the model of inclusions at the steel/slag interface,the recent development has overcome the limitations of the assumptions of Kralchevsky-Paunov model and verified the possible errors caused by the model assumptions by combining the water model and the physical model.Last but not least,the future work in this topic has been suggested,which could be in combination of thermal physical properties of steels and slag,as well as utilize the artificial intelligence-based methodology to implement a comprehensive inclusion motion behaviors during a comprehensive metallurgical process.

关 键 词：Inclusion movementSteel Ar interfaceSteel slag interfaceIn situ observation 

分 类 号：TG1[金属学及工艺—金属学]