Using the methods of X-ray structural analysis and electron and positron spectroscopy, it is found out that an irradiation of the surface of a Zr – 1 wt.% Nb specimen with an electron beam in the melting mode results in the formation of lamellar α+α′-structure, an increase in the dislocation density, a dissolution of the β-Nb phase, and the formation of defects of the vacancy-impurity type. The presence of hydrogen in the alloy irradiated with an electron beam favors the formation of complex hydrogen-vacancy complexes in the surface layer along with dislocations.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 112–117, May, 2019.
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Mishin, I.P., Grabovetskaya, G.P., Stepanova, E.N. et al. Hydrogen Effect on the Defect Structure Formation in the Zr – 1 WT.% Nb Alloy Under Pulsed Electron Beam Irradiation. Russ Phys J 62, 854–860 (2019). https://doi.org/10.1007/s11182-019-01787-9
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DOI: https://doi.org/10.1007/s11182-019-01787-9