Abstract
The phase equilibria of the Co-Cu-Mo ternary system at 900 and 1100 °C have been studied by using x-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS). Three and five three-phase regions have been confirmed in the system at 900 and 1100 °C, respectively. No ternary compound has been found in these two isothermal sections. At 900 °C, the maximum solubilities of Co and Cu in the μ phase are 56.5 and 4.4 at.%, respectively. As the temperature rises to 1100 °C, their solubilities decrease slightly. Moreover, with the temperature increases from 900 to 1100° C, in the αCo phase, the solubility of Mo increases from 6.5 to 11.9 at.% and the solubility of Cu increases from 8.3 to 12.1 at.%.
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Acknowledgments
This work is supported by national Natural Science Foundation of china (No. 51771160) and Scientific Research Fund of Hunan Provincial Science and Technology Department (No. 2018JJ4057, 2018).
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Liu, S., Yin, F., Hu, J. et al. Phase Equilibria of the Co-Cu-Mo System at 900 and 1100 °C. J. Phase Equilib. Diffus. 40, 275–284 (2019). https://doi.org/10.1007/s11669-019-00723-1
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DOI: https://doi.org/10.1007/s11669-019-00723-1