Activity measurement of FeOCr2O3 in " FeO(Cr, Al)1O3" solid solution

Masaki Shimamoto, Yusuke Mizukami, Takahiro Miki, Mitsutaka Hino

研究成果: Article査読

1 被引用数 (Scopus)


Thermodynamic information on the equilibrium between dissolved Cr and O in steel melt is the basic knowledge to control Cr content in the stainless steel production process. In the case of using alumina refractories, molten Fe-Cr alloy equilibrates locally with 'FeO(Cr, Al)2O3' solid solution at the interface between the melt and refractories when Cr content in the alloy is low. Wide composition range of 'FeO(Cr, Al)2O 3' solid solution is known, and the activity data of FeOCr 2O3 in 'FeO(Cr, Al)2O3' solid solution is required to precisely estimate and control the Cr-O equilibrium relation in molten Fe-Cr when the alloy is produced in the furnace lining by Al2O3 refractories. In the present work, crucibles made of 'FeO(Cr, Al)2O3' solid solution were equilibrated with molten Ag under CO-CO2 gas mixture at 1 873 K to determine the activity of FeOCr2O3 in the solid solution.

ジャーナルIsij International
出版ステータスPublished - 2013

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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