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Thermodynamic Description of Ternary Fe-X-P Systems. Part 2: Fe-Cu-P

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Abstract

Thermodynamic description of the Fe-Cu-P system is developed within the frame of a new Fe-X-P (X = Al, Cr, Cu, Mn, Mo, Nb, Ni, Si, Ti) database. The thermodynamic parameters of the binary sub-systems, Fe-Cu, Fe-P and Cu-P, are taken from earlier assessments. Those of the Fe-Cu-P system are optimized in this study using the experimental thermodynamic and phase equilibrium data from the literature. The solution phases of the system are described using the substitutional solution model and the phosphides are treated as stoichiometric or semi-stoichiometric phases of the type (A,B)pCq.

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Acknowledgment

Financial support of the Finnish Funding Agency for Technology and Innovation (TEKES) is gratefully acknowledged by Dr J. Miettinen. The research was carried out as part of the Finnish Metals and Engineering Competence Cluster (FIMECC)’s SIMP program.

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Authors and Affiliations

  1. School of Chemical Technology, Aalto University, Espoo, Finland

    Jyrki Miettinen

  2. Faculty of Chemistry, University of Plovdiv, 24 Tsar Asen str, 4000, Plovdiv, Bulgaria

    Gueorgui Vassilev

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  1. Jyrki Miettinen
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  2. Gueorgui Vassilev
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Correspondence to Gueorgui Vassilev.

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Miettinen, J., Vassilev, G. Thermodynamic Description of Ternary Fe-X-P Systems. Part 2: Fe-Cu-P. J. Phase Equilib. Diffus. 35, 469–475 (2014). https://doi.org/10.1007/s11669-014-0315-9

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  • DOI: https://doi.org/10.1007/s11669-014-0315-9

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