Thermodynamic assessments of the Mn–Sm and Mn–Ho systems

By using the calculation of phase diagrams (CALPHAD) method, the thermodynamic assessments of the Mn–Sm and Mn–Ho systems were carried out based on the experimental data including thermodynamic properties and phase equilibria. Gibbs free energy of the solution phase (liquid, fcc, bcc, hcp, cbcc, rho...

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Veröffentlicht in:	Journal of alloys and compounds 2009-07, Vol.481 (1), p.291-295
Hauptverfasser:	Wang, C.P., Zhang, H.L., Wang, S.L., Lin, Z., Liu, X.J., Tang, A.T., Pan, F.S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloys Assessments Computer simulation Cross-disciplinary physics: materials science rheology Exact sciences and technology Liquids Manganese Materials science Mathematical models Phase diagrams Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase diagrams of metals and alloys Phase transformations Physics Rare earth alloys and compounds Thermodynamic modeling Thermodynamics
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Beschreibung
Zusammenfassung:	By using the calculation of phase diagrams (CALPHAD) method, the thermodynamic assessments of the Mn–Sm and Mn–Ho systems were carried out based on the experimental data including thermodynamic properties and phase equilibria. Gibbs free energy of the solution phase (liquid, fcc, bcc, hcp, cbcc, rhombohedral and cub) were modeled by the subregular or regular solution model with the Redlich–Kister formula, and those of the intermetallic compounds (Mn 23Sm 6, Mn 2Sm, HoMn 2, Ho 6Mn 23, HoMn 12) were described by the sublattice model. An agreement between the present calculated results and experimental data is obtained.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2009.03.121