Abstract
In order to overcome weak points of steel for its engineering applications, in particular, for environmentally benign, energy -efficient, lightweight engineering systems, a number of new steels have been proposed, especially to improve strength-to-weight ratio (specific strength). Mass production of these steels, however, has encountered a serious roadblock particularly in the steel refining and casting processes. This is because their chemistries and cleanliness requirements are vastly different from those of the conventional steels, and thus an incremental improvement of the prevailing process technologies is found hard to meet the requirements. In this study, a new process is proposed, which employs inert gas bubbles in the shroud nozzle, liquid steel drops in the degassing chamber, and the siphon transport for continuous casting . The proposed process which integrates the final refining and cleaning steps prior to casting is expected to be a technologically disruptive innovation on the conventional counterpart. The effectiveness of the individual steps is discussed with experimental results.
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References
Kim S-H, Kim H, Kim NJ (2015) Nature (518):77–79
de Cooman B, Chin K-G, Kim J (2011) InTech, Winchester, UK, pp 101–28
Chun YS, Park K, Lee CS (2012) Scripta Mater (66):960–65
Park K, Jin KG, Han SH, Hwang SW, Choi K, Lee CS (2010) Mater Sci Eng A 527:3651–3661
Yu X, Wen G-H, Tang P, Ma F-J, Wang H (2011) J Iron Steel Res Int 18:20–25
Wang Q, Qiu S, Zhao P (2012) Metall Mater Trans B 43B:424–430
Wang L, Lee HG, Hayes P (1996) ISIJ Int (36):17–24
Turkdogan ET, Kor GJW, Fruehan RJ (1980) Ironmak Steelmak (6):268
Wu A, Hayes PC, Lee HG (1998) ISIJ Int 38(3):213–219
Kang SM, Kim DY, Kim JS, Lee HG (2003) ISIJ Int 43(11):1683–1690
Rhamdhani MA, Brooks GA, Coley KS (2006) Metall Mater Trans B 37B:1087–1091
Assis AN, Warnett J, Spooner S, Fruehan RJ, Williams MA, Sridhar S (2015) Metall Mater Trans B 46B:568–576
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© 2018 The Minerals, Metals & Materials Society
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Kang, YB., Cho, J., Kim, S., Lee, HG. (2018). Innovative Applications of Bubbles and Drops to Ferrous Process Technology. In: Davis, B., et al. Extraction 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95022-8_58
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DOI: https://doi.org/10.1007/978-3-319-95022-8_58
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-95022-8
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