Abstract
Following the absorption of inclusions, alterations occur in the microstructure of the tundish flux, thereby affecting its performance and diminishing the quality of continuous casting blanks. In this study, molecular dynamics simulations were employed to analyze the influence of varying levels of absorbed inclusions on the flux microstructure. The results indicate that the flux continuously absorbs inclusions, such as Al2O3 and SiO2, during the continuous casting process, leading to an increase in the degree of microstructural polymerization. In the later stages of continuous casting, the proportion of bridging oxygen and tricluster oxygen in the tundish flux increased by 3.7% and 5.1%, respectively, while the average bond length of Al-O increased by 0.033 Å. The complexity of the microstructure leads to the deterioration of the physical and chemical properties of the coating, such as melting point and viscosity, and further reduces its ability to absorb inclusions.
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Acknowledgements
The authors gratefully acknowledge the financial support provided by the National Natural Science Foundation of China, project No. 51874059, 52074053, 52274320 and 52274321.
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Hu, H. et al. (2024). Evolution of the Tundish Flux Microstructure During Continuous Casting Process: A Molecular Dynamics Simulation Study. In: Wagstaff, S., Anderson, A., Sabau, A.S., Iloeje, C. (eds) Materials Processing Fundamentals 2024. TMS 2024. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50184-5_4
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DOI: https://doi.org/10.1007/978-3-031-50184-5_4
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