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A Theoretical Analysis of the Interaction Between Pores and Inclusions During the Continuous Casting of Steel
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Casting of Metals.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Casting of Metals.ORCID iD: 0000-0002-8318-1251
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Casting of Metals.
2016 (English)In: Metallurgical and Materials Transactions. A, ISSN 1073-5623, E-ISSN 1543-1940, Vol. 47, no 6, 2985-2999 p.Article in journal (Refereed) PublishedText
Abstract [en]

A mathematical model is derived to predict the trajectories of pores and inclusions that are nucleated in the interdendritic region during the continuous casting of steel. Using basic fluid mechanics and heat transfer, scaling analysis, and asymptotic methods, the model accounts for the possible lateral drift of the pores as a result of the dependence of the surface tension on temperature and sulfur concentration. Moreover, the soluto–thermocapillary drift of such pores prior to final solidification, coupled to the fact that any inclusions present can only have a vertical trajectory, can help interpret recent experimental observations of pore-inclusion clusters in solidified steel castings.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 47, no 6, 2985-2999 p.
Keyword [en]
Atmospheric movements, Continuous casting, Fluid mechanics, Heat transfer, Asymptotic method, Continuous casting of steels, Interdendritic regions, Lateral drifts, Scaling analysis, Sulfur concentrations, Thermocapillary, Steel castings
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-186940DOI: 10.1007/s11661-016-3449-zISI: 000375330700041ScopusID: 2-s2.0-84964067881OAI: oai:DiVA.org:kth-186940DiVA: diva2:930208
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QC 20160523

Available from: 2016-05-23 Created: 2016-05-16 Last updated: 2016-06-10Bibliographically approved

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Nick, Arash S.Vynnycky, MichaelFredriksson, Hasse
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