Effect of Slag Basicity on Non-metallic Inclusions in a Heavy Rail Steel
Minerals, Metals and Materials Series, ISSN: 2367-1696, Page: 513-520
2022
- 2Citations
- 1Captures
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Conference Paper Description
Experiments and thermodynamic calculations were performed to investigate the effect of slag basicity (CaO/SiO) on non-metallic inclusions in heavy rail steels. With the increased of the slag basicity from the 1.7 to 2.3, the composition of inclusions changed from the SiO-CaO to AlO-MgO-SiO-CaO. During the rolling process, the full liquid inclusions were rolled to the linear shape inclusions, which was harmful to heavy rail steels. It was proposed that the target of inclusions was the partial liquid inclusions instead of the full liquid inclusions to avoid the formation of the linear shape inclusions. Moreover, the relationship between the composition of the AlO-MgO-SiO-CaO slag and the composition of inclusions was calculated using FactSage thermodynamic software. The content of AlO in inclusions gradually increased from less than 10% to above 30% with a higher slag basicity. The lower AlO content in slag was beneficial to decrease the AlO content in inclusions in heavy rail steels.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85125252489&origin=inward; http://dx.doi.org/10.1007/978-3-030-92388-4_46; https://link.springer.com/10.1007/978-3-030-92388-4_46; https://dx.doi.org/10.1007/978-3-030-92388-4_46; https://link.springer.com/chapter/10.1007/978-3-030-92388-4_46
Springer Science and Business Media LLC
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