The Equilibrium Relation of Immiscibility in an Fe-Cu-B System at 1873 K

• Yamaguchi Katsuhiro

  Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

• Ono Hideki

  Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

• Usui Tateo

  Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

抄録

The equilibrium relation of the phase separation in the Fe-Cu-B system is investigated at 1873 K for potential use in the separation of copper from iron in steel scrap recycling. Liquid immiscibility is confirmed even at low boron content in iron, [mass%B]_{(in Fe)}=0.006. By combining the Taylor series equation proposed by Wagner and that of the quadratic formalism proposed by Darken, the thermodynamic interaction parameters of copper for boron in molten iron, which can be applied with precision over the wide concentration range, are derived. The first and the second order interaction parameters of copper for boron in molten iron at 1873 K are: <BR>ε_Cu^B=−ρ_Cu^Cu,B=12.1(±0.6),ρ_Cu^B=−18.9(±11.0) (N_{B(in Fe)}<0.34)<BR>e_Cu^B=0.254(±0.014),r_Cu^B=−0.032(±0.014) ([mass%B]_{(in Fe)}<8.9)<BR>Moreover, the immiscibility range in the Fe-Cu-B system is also investigated by applying a symmetrical and regular solution model.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 51 (7), 1222-1226, 2010

  公益社団法人 日本金属学会

キーワード

• recycling
• steel scrap
• tramp element
• copper
• boron
• quadratic formalism
• immiscibility

詳細情報

• CRID: 1390282679226945792
• NII論文ID: 10027018634
• NII論文ID: 130004454505
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2009415
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 10735832
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10735832
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/51/7/51_M2009415/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可