Abstract
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.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Nos. 51031003 and 51171159), the Ministry of Education Foundation of China (No. 20120121130004) and the National Key Basic Research Program of China (973 program) (No. 2012CB825700). The supports from the China Aviation Industry Corporation are also acknowledged.
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Liu, X.J., Liu, Y., Guo, Y.H. et al. Experimental Investigation and Thermodynamic Calculation of the Phase Equilibria in the Cu-Nb-Zr Ternary System. J. Phase Equilib. Diffus. 37, 513–523 (2016). https://doi.org/10.1007/s11669-016-0459-x
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DOI: https://doi.org/10.1007/s11669-016-0459-x