Thermodynamics of TiN Formation in Fe-Cr Melts

• PAK Jong-Jin

  Division of Materials and Chemical Engineering, Hanyang University

• JEONG Yong-Soo

  Graduate Student, Division of Materials and Chemical Engineering, Hanyang University

• HONG In-Kook

  Graduate Student, Division of Materials and Chemical Engineering, Hanyang University

• CHA Woo-Yeol

  Graduate Student, Division of Materials and Chemical Engineering, Hanyang University

• KIM Dong-Sik

  Stainless Steel Research Group, Technical Research Laboratories, POSCO

• LEE Yun-Yong

  Stainless Steel Research Group, Technical Research Laboratories, POSCO

抄録

The equilibrium solubility of titanium and nitrogen in Fe-Cr melts was measured in the presence of pure solid TiN under various nitrogen pressures. The activity coefficients of titanium and nitrogen relative to 1 mass% standard state in liquid iron were calculated from the experimental results in the temperature range of 1843-1923 K. The first and second order interaction parameters of chromium on titanium and nitrogen were determined as a function of temperature. The validity of thermodynamic parameters determined in the present study was examined by constructing the stability diagram of TiN for Fe-Cr melts and by observing the formation of primary and secondary TiN inclusions at controlled titanium and nitrogen contents in the melt.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 45 (8), 1106-1111, 2005

  一般社団法人 日本鉄鋼協会

キーワード

• thermodynamics
• TiN
• chromium
• titanium
• nitrogen
• interaction parameters
• inclusion

詳細情報

• CRID: 1390282681463428608
• NII論文ID: 10027019237
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.45.1106
• COI: 1:CAS:528:DC%2BD2MXpslWqs7w%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/45/8/45_8_1106/_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