Thermodynamics of Oxygen and Nitrogen in Liquid Fe-20mass%Cr Alloy Equilibrated with Titania-based Slags.

• Kishi Mikine

  Graduate Student, Tohoku University

• Inoue Ryo

  Institute for Advanced Materials Processing, Tohoku University

• Suito Hideaki

  Institute for Advanced Materials Processing, Tohoku University

抄録

Equilibrium between CaO-Al₂O₃-TiO_x or BaO-Al₂O₃-TiO_x slags and a liquid Fe-20 mass%Cr alloy with respect to oxygen and nitrogen was studied at 1873 K as a function of Ti (or Al) content in alloys, using an Al₂O₃ crucible. The Al-O and Ti-Al relations in liquid alloy were studied, and nitride capacity defined by C_N=(mass%N)·P_O₂^3/4/P_N₂^1/2 was obtained from nitrogen distribution ratios, coupled with the analyzed oxygen content in liquid alloy or the P<sub>O₂</SUB> determined by Ti/TiO₂ equilibrium. Based on these results, activity of Al₂O₃ and activity coefficients of TiO₂, TiO_1.5 and CrO_1.5 were evaluated.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 34 (11), 859-867, 1994

  一般社団法人 日本鉄鋼協会

キーワード

• denitrogenization
• Fe-Cr alloy
• redox ratio
• activity coefficient
• titanium oxide
• chromium oxide

詳細情報

• CRID: 1390282681430557440
• NII論文ID: 130000781664
• DOI: 10.2355/isijinternational.34.859
• COI: 1:CAS:528:DyaK2MXit1yls7o%3D
• ISSN: 13475460
• ISSN: 09151559
• ISSN: http://id.crossref.org/issn/09151559
• ISSN: http://id.crossref.org/issn/00211583
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/34/11/34_11_859/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可