Critical Evaluation and Thermodynamic Optimization of the Binary Systems in the Mg-Ce-Mn-Y System

Kang, Youn-Bae; Pelton, Arthur D.; Chartrand, Patrice; Spencer, Philip; Fuerst, C. D.

doi:10.1007/s11669-007-9095-9

Cited by 51 publications

(48 citation statements)

References 35 publications

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“…The liquid phases in the Mg-Al and Mg-Mn sub-systems of the Mg-Al-Mn system were also modeled previously with the MQM. [9,10] This model, which takes SRO into account, has been used extensively for molten salts, [11][12][13] slags [14] and sulfides. [15][16][17] All details of the model and notation have been described previously [8] and only a brief summary is given here.…”

Section: Modified Quasichemical Modelmentioning

confidence: 99%

“…The values of the coordination numbers selected in the present study are listed in Table 1. The liquid phase in the Al-Mg and the Mg-Mn systems show maximum SRO near the equimolar composition [9,10] ; hence Z A AB ¼ Z B BA in all cases. From the MQM model parameters for the binary liquid phases, the thermodynamic properties of a ternary liquid phase may be estimated as discussed previously.…”

Section: Modified Quasichemical Modelmentioning

confidence: 99%

“…The previously optimized phase diagrams of the Al-Mg [9] and Mg-Mn [10] systems are shown in Fig. 11 and 12 respectively.…”

Section: The Mg-al-mn Systemmentioning

confidence: 99%

“…Our previous optimizations [9,10] of the Al-Mg and Mg-Mn systems were combined with the present optimization of the Al-Mn system in order to calculate the polythermal projection of the liquidus of the Mg-Al-Mn system shown in Fig. 13.…”

Section: The Mg-al-mn Systemmentioning

confidence: 99%

“…The HCP phase in the Al-Mg and Mg-Mn systems [9,10] and the FCC phase in the Al-Mg system were modeled with single-sublattice substitutional models. For modeling purposes, the Mg-rich HCP phase in the Al-Mg and Mg-Mn systems and the e (HCP) phase in the Al-Mn system were formally treated as the same phase.…”

Section: The Mg-al-mn Systemmentioning

confidence: 99%

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Thermodynamic Assessment of the Al-Mn and Mg-Al-Mn Systems

Shukla

Pelton

2008

J. Phase Equilib. Diffus.

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The binary Al-Mn system has been critically evaluated based upon available phase equilibrium and thermodynamic data, and optimized model parameters have been obtained giving the Gibbs energies of all phases as functions of temperature and composition. The liquid solution has been modeled with the modified quasichemical model to account for short-range ordering. The results have been combined with those of our previous optimizations of the Al-Mg and Mg-Mn systems to evaluate and optimize the Mg-Al-Mn system. All available data for the ternary system are reproduced with only one small ternary model parameter for the liquid phase.

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Section: Modified Quasichemical Modelmentioning

confidence: 99%

Section: Modified Quasichemical Modelmentioning

confidence: 99%

“…The previously optimized phase diagrams of the Al-Mg [9] and Mg-Mn [10] systems are shown in Fig. 11 and 12 respectively.…”

Section: The Mg-al-mn Systemmentioning

confidence: 99%

Section: The Mg-al-mn Systemmentioning

confidence: 99%

Section: The Mg-al-mn Systemmentioning

confidence: 99%

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Thermodynamic Assessment of the Al-Mn and Mg-Al-Mn Systems

Shukla

Pelton

2008

J. Phase Equilib. Diffus.

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Development of thermodynamic database of the Mn‐RE (RE = rare earth metals) binary systems

Ye,

Wang,

Chen

et al. 2024

Materials Genome Engineering Advances

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In this work, eight Mn‐RE (RE = Ce, Pr, Sm, Tb, Er, Tm, Lu, and Y) binary systems were reassessed thermodynamically by the CALPHAD method based on the reported optimizations and experimental information. Self‐consistent thermodynamic parameters to describe Gibbs energies of various phases in eight Mn‐RE binary systems were obtained. The calculated phase equilibria and thermodynamic properties of eight Mn‐RE binary systems are in good accordance with the experimental results. Furthermore, phase equilibria and thermodynamic properties of 13 Mn‐RE (RE = La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu, and Y) binary systems were discussed systematically in combination with the present calculations and the reported optimizations. A trend was found for the variation of phase equilibria and thermodynamic properties of the Mn‐RE binary systems. In general, as the RE atomic number increases, the enthalpies of mixing of liquid alloys as well as the enthalpies of formation of the intermetallic compounds become increasingly negative, and the formation temperatures of the intermetallic compounds become higher. The results provide a complete set of self‐consistent thermodynamic parameters for the Mn‐RE binary systems, and a thermodynamic database of 13 Mn‐RE binary systems was finally achieved.

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