In-situ observation of dynamic interfacial phenomena between CaO-(SiO 2 or Al2O3) slag and Fe-11%Cr alloy near the MgO-6%C refractory at 1823 K

Minsoo Shin, Seungyoun Cho, Joonho Lee, Joo Hyun Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO 2 or Al2O3) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.

Original languageEnglish
Pages (from-to)495-499
Number of pages5
JournalMetals and Materials International
Volume16
Issue number3
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Dynamic interfacial phenomena
  • Image analysis
  • Oxides
  • Purification
  • Wetting

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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