Film-drainage, separation and dissolution of Al2O3 inclusions across interfaces between molten steel and ladle-, tundish-and mold-slags

G. N. Shannon, Seetharaman Sridhar

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

This paper presents calculations on the separation times for solid spherical, octahedral and plate-like micro-inclusions across interfaces between molten low carbon steel and ladle-, tundish-, and mold-slags. The effect of inclusion shape on the interfacial capillary force that arises due to the dynamic interfacial energy change during separation has been investigated and it is shown that this has a significant effect on whether the inclusion separates rapidly or settles at the interface. In the case of settled particles, the inclusion dissolution time was computed based on experimental data. For the slags considered, the most significant physical property was found to be the slag viscosity, which resulted in fast separation for the mold and ladle slag when compared to the more viscous tundish slag.

Original languageEnglish (US)
Pages (from-to)111-124
Number of pages14
JournalHigh Temperature Materials and Processes
Volume24
Issue number2
DOIs
StatePublished - 2005
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physical and Theoretical Chemistry

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