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Thermodynamic modeling of the Ba–Mg binary system

  • Xin Ren , Changrong Li , Zhenmin Du , Cuiping Guo and Sicheng Chen
Published/Copyright: August 17, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 104 Issue 4

Abstract

On the basis of the thermochemical and phase equilibrium experimental data, the phase diagram of the Ba–Mg binary system has been assessed by means of the calculation of phase diagrams technique. The liquid phase is of unlimited solubility and modeled as a solution phase using the Redlich–Kister equation. The intermetallic compounds, Mg17Ba2, Mg23Ba6 and Mg2Ba, with no solubility ranges are treated as strict stoichiometric compounds with the formula MgmBan. Two terminal phases, Bcc_Ba and Hcp_Mg, are kept as solution phases, since the solubilities of the two phases are of considerable importance. After optimization, a set of self-consistent thermodynamic parameters has been obtained. The calculated values agree well with the available experimental data.

Keywords: Ba–Mg system; Thermodynamic assessment; CALPHAD technique
* Correspondence address, Prof. Changrong Li, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 P.R. China, Tel.: +86 106233 3607, Fax.: +86 106233 3772, E-mail:

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Received: 2011-1-11
Accepted: 2012-8-17
Published Online: 2013-08-17
Published in Print: 2013-04-11

© 2013, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110870
Keywords for this article
Ba–Mg system; Thermodynamic assessment; CALPHAD technique

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Modeling the effect of austenite deformation on the bainite structure parameters in low carbon microalloyed steels
  5. The precipitation of η phase in an Fe-Ni-based superalloy with different Ti/Al ratios
  6. Growth kinetics of aluminum-bearing intermetallic layer on tool steel
  7. Thermodynamic modeling of the Ba–Mg binary system
  8. Partial isothermal section of the Dy-Co-Ga ternary system at 500°C
  9. Solubility study of the copper-lead system
  10. Solidification of primary Si in electromagnetically levitated Al-50%Si undercooling melts
  11. Microstructure and mechanical properties of as-cast and solution-treated Mg-Zn-Gd-based alloys reinforced with quasicrystals
  12. Fabrication of micro/nano structured aluminum–nickel energetic composites by means of ultrasonic powder consolidation
  13. Study of an Al-Si-Cu HPDC alloy with high Zn content for the production of components requiring high ductility and tensile properties
  14. Characterization of silicon-silicon carbide ceramic derived from carbon-carbon silicon carbide composites
  15. Mechanochemical and combustion synthesis of CeB6
  16. Nanomechanical studies and materials characterization of metal/polymer bilayer MEMS cantilevers
  17. DGM News
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