1. G. S. Burkhanov and Yu. V. Ufimov (Eds.), Refractory Metals and Alloys [in Russian], Metallurgiya, Moscow (1986).
2. M. V. Zakharov and A. M. Zakharov, Heat-Resistant Alloys [in Russian], Metallurgiya, Moscow (1972).
3. C. T. Sims, N. S. Stoloff, and W. C. Hagel, Superalloys II: High-Temperature Materials for Aerospace and Industrial Power, John Wiley and Sons, New York (1987).
4. J. Zheng, X. Hou, X. Wang, et al., “Isothermal oxidation mechanism of Nb–Ti–V–Al–Zr alloy at 700–1200°C: Diffusion and interface reaction,” Corros. Sci., 96, 186–195 (2015).
5. S. P. Gahr, B. J. Makenas, and H. K. Birnbaum, “Fracture of niobium hydride,” Acta Metall., 28, No. 9, 1207–1213 (1980).