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Phase Equilibria of the Nb-V-Al Ternary System at 1100 and 1200 °C

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Abstract

In this study, two isothermal sections of the Nb-V-Al ternary system at 1100 and 1200 °C were experimentally investigated by means of back-scattered electron, electron probe microanalysis and x-ray diffraction. The determined isothermal sections at both 1100 and 1200 °C consist of five three-phase regions and ten two-phase regions, without any ternary compounds. The (Nb, V) phase forms a large continuous solid solution. The solubility of V in NbAl3 and Nb2Al phase is large, whereas the solubility of Nb in the VAl3 and V5Al8 phase is small.

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Acknowledgements

This work was supported by the Joint Fund to Promote Cross-Strait Scientific and Technological Cooperation (Grant No. U1605243), the National Key R&D Program of China (Grant No. 2017YFB0702901).

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Authors and Affiliations

  1. College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen, 361005, People’s Republic of China

    C. P. Wang, J. Yao, X. Wu, S. Y. Yang, J. B. Zhang, Z. B. Wei, J. J. Han, Y. Lu & X. J. Liu

  2. Department of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, Guangdong, People’s Republic of China

    C. P. Wang & X. J. Liu

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  1. C. P. Wang
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Wang, C.P., Yao, J., Wu, X. et al. Phase Equilibria of the Nb-V-Al Ternary System at 1100 and 1200 °C. J. Phase Equilib. Diffus. 40, 423–431 (2019). https://doi.org/10.1007/s11669-019-00737-9

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  • DOI: https://doi.org/10.1007/s11669-019-00737-9

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