The Equilibrium Relation of Immiscibility in an Fe-Cu-B System at 1873 K
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- Yamaguchi Katsuhiro
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
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- Ono Hideki
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
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- Usui Tateo
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
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Description
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>εCuB=−ρCuCu,B=12.1(±0.6),ρCuB=−18.9(±11.0) (NB(in Fe)<0.34)<BR>eCuB=0.254(±0.014),rCuB=−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.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 51 (7), 1222-1226, 2010
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679226945792
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- NII Article ID
- 10027018634
- 130004454505
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 10735832
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed