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Correspondence between Surface Tension Estimated by a Surface Thermodynamic Model and Number of Bubbles in the Vicinity of the Surface of Steel Products in Continuous Casting Process
Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing – Casting.
Kyushu Institute of Technology, Japan.
Nippon Steel Corporation, Japan.
2013 (English)In: ISIJ International, ISSN 0915-1559, Vol. 53, no 1, 18-26 p.Article in journal (Refereed) Published
Abstract [en]

Surface tensions of low carbon slabs and 16 mass%Cr stainless steel were estimated using a surface thermodynamic model proposed by Mukai et al. As an application of the model, an index to evaluate the driving force for the fine bubble entrapment by the solidifying shell, the Mukai-value, M, was calculated from the surface tension values. The relationship between Mukai-value and number of entrapped bubbles was discussed. A linear relationship was found between the number of captured bubbles and Mukai-value. In the previous work, the Mukai-value was used as a relative scale to evaluate the driving force for the movement of bubbles. However, by calculating the M from the surface tension values by the surface thermodynamic model, physically reasonable Mukai-values could be obtained.

Place, publisher, year, edition, pages
2013. Vol. 53, no 1, 18-26 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-20255DOI: 10.2355/isijinternational.53.18Local ID: JTHMaterialISOAI: oai:DiVA.org:hj-20255DiVA: diva2:589260
Available from: 2013-01-17 Created: 2013-01-17 Last updated: 2014-03-04Bibliographically approved

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