Hydrogen-phase naklep as a result of single isothermal hydride transformations

  • Gregory I. Zhirov Belarusian National Technical University, 65 Niezaliežnasci Avenue, Minsk 220013, Belarus https://orcid.org/0000-0002-5732-743X
  • Mariya V. Goltsova Belarusian National Technical University, 65 Niezaliežnasci Avenue, Minsk 220013, Belarus
DOI: https://doi.org/10.33581/2520-2243-2022-1-65-74

Abstract

Hydrogen treatment of metallic materials is a promising area of controlled hydrogen action on metals and alloys in order to impart special properties to them. In this work, the changes in the mechanical properties of palladium during single hydride transformations, which are initiated in the initially non-nakleped palladium hydride, have been experimentally studied. Were investigated wire palladium samples with a purity of 99.98 %, a diameter of 0.5 mm and a length of 165 mm. Samples for research were preliminarily subjected to hydrogen treatment, and then mechanical tests were carried out. The mechanical properties of non-nakleped palladium hydride are presented. Hydrogen-phase naklep of palladium during hydrogen treatment has been studied. It is shown that palladium hydride is a plastic material with low strength characteristics. During the reverse hydride transformation, the hydrogen phase naklep of palladium develops. Experimental facts of the appearance of hydrogen-phase naklep during the interaction of hydrogen with other metals and alloys are discussed.

Author Biographies

Gregory I. Zhirov, Belarusian National Technical University, 65 Niezaliežnasci Avenue, Minsk 220013, Belarus

PhD (physics and mathematics); associate professor at the department of technical physics, faculty of information technology and robotics

Mariya V. Goltsova, Belarusian National Technical University, 65 Niezaliežnasci Avenue, Minsk 220013, Belarus

PhD (engineering), docent; associate professor at the department of powder metallurgy, welding and materials technology, faculty of mechanics and technology

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Published
2022-01-27
Keywords: hydride transformation, palladium – hydrogen system, palladium hydride, mechanical properties, hydrogen treatment, hydrogen-phase naklep
How to Cite
Zhirov, G. I., & Goltsova, M. V. (2022). Hydrogen-phase naklep as a result of single isothermal hydride transformations. Journal of the Belarusian State University. Physics, 1, 65-74. https://doi.org/10.33581/2520-2243-2022-1-65-74
Issue
No 1 (2022): Journal of the Belarusian State University. Physics
Section
Condensed State Physics

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