Suppressing Aluminum/Silica Exchange Reaction Between High Aluminum Steel and Mold Flux Using Dopant Additions
Abstract
The effect of dopant additions on the exchange reaction between a high-aluminum steel and mold flux was studied for the continuous casting process. Slag dopants with surface-active species obtained from CaSO4, SrSO4, and SeS2 additions were chosen to suppress the aluminum/silica exchange reaction. Two dopants, at concentrations of 0.5, 1.0, and 2.5 wt.%, slowed the reaction compared to the baseline condition (without a dopant addition). Notably, SrSO4 and SeS2 at lower concentrations exhibited reaction suppression. Additionally, it was found that dopant concentrations exceeding 1.0 wt.% had no further influence on the rate of the exchange reaction for the steel grade studied.
Recommended Citation
Yermukhanbetov, K.; O'Malley, Ronald J.; Gu, Yijia; Sander, T.; Phillips, K.; Nosbush, M.; Rakers, C.; and Gillespie, N., "Suppressing Aluminum/Silica Exchange Reaction Between High Aluminum Steel and Mold Flux Using Dopant Additions" (2024). PSMRC Faculty Research. 9.
https://scholarsmine.mst.edu/psmrc_facwork/9
Department(s)
Materials Science and Engineering
Keywords and Phrases
Surface-active species, Slag dopants, Light-weight steel, Mold flux, Continuous casting
Document Type
Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Association for Iron & Steel Technology, All Rights Reserved
Publication Date
8 May, 2024
