Effect of oxygen on the interfacial tension of liquid Fe

Joonho Lee, Yunkyum Kim, Joongkil Choe, Majid Abbasi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The entrapment of gas bubbles and non-metallic inclusions such as alumina by the solidifying shell in the continuous casting of steel is known to be determined by the interfacial tension gradients at the solid-liquid interface. Mukai and Lin1-3) suggested a mechanism of the entrapment of particles at the solid-liquid interface, and Zeze and Mukai4) confirmed that this model acceptable for the prediction of the behaviors of bubbles and inclusions in stainless steels. In this model, oxygen and sulfur are the most important elements determining the entrapment behavior. In the present study, the effect of oxygen on the surface tension of liquid Fe was investigated with the constrained drop method. By combining the present results with Young's equation, the interfacial tension was obtained as a function of the oxygen content in liquid Fe. It was considered that a gas bubble at the solid-liquid interface is entrapped, whereas an alumina inclusion is pushed away.

Original languageEnglish
Title of host publicationAISTech - Iron and Steel Technology Conference Proceedings
Pages1117-1122
Number of pages6
Volume1
Publication statusPublished - 2013 Aug 14
EventAISTech 2013 Iron and Steel Technology Conference - Pittsburgh, PA, United States
Duration: 2013 May 62013 May 9

Other

OtherAISTech 2013 Iron and Steel Technology Conference
CountryUnited States
CityPittsburgh, PA
Period13/5/613/5/9

Keywords

  • Entrapment
  • Interfacial tension
  • Liquid iron
  • Marangoni flow
  • Surface tension
  • Term contact angle

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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  • Cite this

    Lee, J., Kim, Y., Choe, J., & Abbasi, M. (2013). Effect of oxygen on the interfacial tension of liquid Fe. In AISTech - Iron and Steel Technology Conference Proceedings (Vol. 1, pp. 1117-1122)