文献类型：期刊文献

英文题名：Erosion between mullite refractory and molten steel refined by different slags

作者：Li, Shen Qin, Zhuo Long, Likun Wang, Jun Wang, Linzhu Li, Xiang Xiong, Jiaze

第一作者：Li, Shen

通信作者：Wang, LZ[1];Li, X[2]|[14440b064bd9b7e3217ac]李翔;[1444047823bfb411b7e75]李翔;

机构：[1]Guizhou Univ, Sch Mat & Met, Guiyang 550025, Guizhou, Peoples R China;[2]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550025, Peoples R China;[3]Shougang Guiyang Special Steel Co LTD, Xiuwen 550201, Guizhou, Peoples R China

第一机构：Guizhou Univ, Sch Mat & Met, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Mat & Met, Guiyang 550025, Guizhou, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550025, Peoples R China.|贵州理工学院;

年份：2026

卷号：52

期号：12

起止页码：18278-18288

外文期刊名：CERAMICS INTERNATIONAL

收录：;EI(收录号：20261420407720);Scopus(收录号：2-s2.0-105034554508);WOS:【SCI-EXPANDED(收录号:WOS:001755010800001)】；

基金：This research was supported by the National Natural Science Foundation of China (Nos. 52264041 and 52274331) and Natural Science Foundation of Guizhou Province (Qian KeHeJi Chu-ZK [2023] Zhong Dian 020) . Additionally, this work was supported by Major Science and Technology Special Project of Guizhou Province (Qian Ke He Ren Cai XKBF [2025] 008) , Guizhou Basic Research Program (Natural Science) Talent Team Lift Project (QNB[2025]005) and Guizhou Provincial Young Elite Scientist Sponsorship Program (No. Gastyess 202405) .

语种：英文

外文关键词：20CrMoA; Alloy structural steel; Mullite refractory materials

摘要：Mullite refractories are widely used in the production of alloy structural steels and affect the cleanliness of molten steel. In this study, the interaction between mullite and 20CrMoA alloy structural steel refined by slags with different compositions was analyzed systematically based on high-temperature experiments and thermodynamic calculations by FactSage. After the interface reaction, the contents of Al, Mn and Ca increased and that of Si decreased on the surface of mullite refractory, the change of corresponding elemental contents in steel and inclusions exhibited the opposite trend, indicating an erosion reaction between steel and mullite. The compositional changes in steel and inclusions were more pronounced during the process of low-basicity slag refined steel melt with mullite, with a large amount of granular SiO2 were observed. There was little change in the size of inclusions in the steel refined by high basicity slag after reacted with mullite, while that in the steel refined by low basicity slag increased from 1.79 mu m to 6.34 mu m. It indicated that the erosion reaction between steel refined by low basicity slag and mullite was more severe. Thermodynamic calculation also indicated that mass transfer occurred between melt and mullite refractory, and the change of elements were larger in the steel refined by the low-basicity slag which was in good agreement with the experimental results.