Effect of temperature on oxygen activity during ladle treatment

Johan Björklund, Takahiro Miki, Margareta Andersson, P. Ä R. Jönsson

研究成果: Article査読

9 被引用数 (Scopus)

抄録

The effect of temperature on oxygen activity in steel was studied in plant trials where temperature and oxygen activity were measured at two depths and at the same time during different parts of ladle refining. The results show that large temperature gradients exist towards the surface of the steel melt for the sampling occasion when no slag is present on the steel surface, as can be expected. It was also observed that the oxygen activity is higher in the lower measurement position than in the upper during the majority of the ladle refining. This is explained by the oxygen activity's temperature dependence. By using the data from this study and previously reported plant trials it was shown that Si-SiO2 or Al-Al2O3 equilibrium controls the oxygen activity.

本文言語English
ページ(範囲)438-445
ページ数8
ジャーナルIsij International
48
4
DOI
出版ステータスPublished - 2008

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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