Cu–Fe–Co System: Verification of the High-Temperature Phase Equilibria and Thermodynamic Modeling of the Low-Temperature Phase Relations Involving Ordered Phase

The thermodynamic assessment of the Co–Cu–Fe system has been updated. The critical review of the literature data on the ordered B2 phase formation has been provided. For the Co–Fe and Co–Cu–Fe systems, the parameters of the bcc solution and ordered phase have been adjusted to describe the thermodyna...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2018, Vol.56 (9-10), p.546-555
Main Authors: Dreval, L. A., Turchanin, M. A., Agraval, P. G., Du, Yong
Format: Article
Language:English
Subjects:
Analysis
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cobalt
Composites
Equilibrium
Glass
Intermetallic phases
Iron
Liquidus
Literature reviews
Low temperature
Materials Science
Metallic Materials
Natural Materials
Phase equilibria
Physicochemical Materials Research
Solidus
Temperature
Thermodynamic equilibrium
Thermodynamic models
Thermodynamic properties
Thermodynamics
Upgrading
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Summary:The thermodynamic assessment of the Co–Cu–Fe system has been updated. The critical review of the literature data on the ordered B2 phase formation has been provided. For the Co–Fe and Co–Cu–Fe systems, the parameters of the bcc solution and ordered phase have been adjusted to describe the thermodynamic properties and to predict the phase equilibria at low temperatures. For the ordered B2 phase, the two-sublattice model has been adopted. The high-temperature phase equilibria have been verified using the newly available literature information on liquidus and solidus. The available data on the ordered B2 phase have been analyzed using the developed thermodynamic assessment. The results of the calculations are in satisfactory agreement with the experimental data.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-018-9927-7