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On the formation of fold-type oscillation marks in the continuous casting of steel
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. University of São Paulo, Brasilia. (Enheten processer)ORCID iD: 0000-0002-8318-1251
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Sandvik Heating Technology, Sweden.ORCID iD: 0000-0001-9437-3550
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2017 (English)In: Royal Society Open Science, E-ISSN 2054-5703, Vol. 4, no 6, 170062Article in journal (Refereed) Published
Abstract [en]

Asymptotic methods are employed to revisit an earlier model for oscillation-mark formation in the continuous casting of steel. A systematic non-dimensionalization of the governing equations, which was not carried out previously, leads to a model with 12 dimensionless parameters. Analysis is provided in the same parameter regime as for the earlier model, and surprisingly simple analytical solutions are found for the oscillation-mark profiles; these are found to agree reasonably well with the numerical solution in the earlier model and very well with fold-type oscillation marks that have been obtained in more recent experimental work. The benefits of this approach, when compared with time-consuming numerical simulations, are discussed in the context of auxiliary models for macrosegregation and thermomechanical stresses and strains.

Place, publisher, year, edition, pages
Royal Society , 2017. Vol. 4, no 6, 170062
Keyword [en]
Asymptotic analysis, Continuous casting, Oscillation marks
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-209897DOI: 10.1098/rsos.170062ISI: 000404843200014Scopus ID: 2-s2.0-85020423418OAI: oai:DiVA.org:kth-209897DiVA: diva2:1115826
Funder
Swedish Energy Agency, 37976-1
Note

QC 20170627

Available from: 2017-06-27 Created: 2017-06-27 Last updated: 2017-08-01Bibliographically approved

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