Experimental Investigation and Thermodynamic Calculation of the Phase Equilibria in the Cu-Nb-Zr Ternary System

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• 作者：X. J. Liu ; Y. Liu ; Y. H. Guo ; D. Wang…
• 关键词：isothermal section ; miscibility gap ; phase diagrams ; thermodynamic calculation
• 刊名：Journal of Phase Equilibria and Diffusion
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：37
• 期：5
• 页码：513-523
• 全文大小：2,227 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Crystallography
  Thermodynamics
  Materials Science
  Engineering Thermodynamics and Transport Phenomena
  Ceramics,Glass,Composites,Natural Materials
  Metallic Materials
  
• 出版者：Springer Boston
• ISSN：1863-7345
• 卷排序：37

文摘

The phase equilibria of the Cu-Nb-Zr ternary system at 900, 1000 and 1100 °C were experimentally investigated by optical microscopy and electron probe microanalysis on the equilibrated alloys. Combined with the obtained experimental results, the phase equilibria of Cu-Nb-Zr ternary system were thermodynamically optimized using the CALPHAD (calculation of phase diagrams) method. The Gibbs free energies of the phases in the present work were described by appropriate models. A consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated data and experimental results was obtained in the Cu-Nb-Zr ternary system.