Mechanical properties and catalytic activity of the Cu-36Pd (at. %) alloy foil surface after cleaning

Natalia B. Morozova; Alexey I. Dontsov; Tatyana N. Khmelevskaya

doi:10.17308/kcmf.2024.26/12223

Natalia B. Morozova Baykova Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 49 Leninsky pr., Moscow 119991, Russian Federation; Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation https://orcid.org/0000-0003-4011-6510
Alexey I. Dontsov Baykova Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 49 Leninsky pr., Moscow 119991, Russian Federation; Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation https://orcid.org/0000-0002-3645-1626
Tatyana N. Khmelevskaya Baykova Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 49 Leninsky pr., Moscow 119991, Russian Federation

DOI: https://doi.org/10.17308/kcmf.2024.26/12223

Keywords: Cu-36Pd (at. %) solid solution, thin foil, surface cleaning, voltammetry, atomic force microscopy, nanoindentation

Abstract

The purpose of the study was to evaluate the effect of mechanical treatment and ion sputtering on hydrogen sorption and the mechanical properties of the surface of the membrane foil of the Pd-Cu solid solution system obtained by rolling.

The efficiency of mechanical and ion beam treatment in cleaning of the surface of membrane foil of the Pd-Cu solid solution system obtained by rolling was assessed using cyclic voltammetry, Auger electron spectroscopy and atomic force microscopy.

It was established that ion beam treatment (Ar+) and mechanical treatment reproduce the elemental composition of the surface, corresponding to the original composition of the solid solution, and forms a developed relief. The change in the asymmetry of the relief roughness after ion-beam treatment indicates the formation of microcracks on the foil surface, which reduce hardness and plasticity. Ion-beam surface treatment also contributes to the cleaning of the surface from rolling artefacts, which leads to a twofold increase in the ionization rate of atomic hydrogen, compared to a sample subjected to mechanical treatment

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Author Biographies

Natalia B. Morozova, Baykova Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 49 Leninsky pr., Moscow 119991, Russian Federation; Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation

Cand. Sci. (Chem.), Associate
Professor, Department of Physical Chemistry,
Voronezh State University (Voronezh, Russian
Federation); Senior Researcher, A. A. Baikov Institute
of Metallurgy and Materials Science Russian Academy
of Sciences (Moscow, Russian Federation)

Alexey I. Dontsov, Baykova Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 49 Leninsky pr., Moscow 119991, Russian Federation; Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation

Cand. Sci. (Phys.–Math.),
Associate Professor, Department of Materials Science
and Industry of Nanosystems, Voronezh State
University (Voronezh, Russian Federation); Senior
Researcher, A. A. Baikov Institute of Metallurgy and
Materials Science Russian Academy of Sciences
(Moscow, Russian Federation)

Tatyana N. Khmelevskaya, Baykova Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 49 Leninsky pr., Moscow 119991, Russian Federation

Cand. Sci. (Chem.),
Researcher, A. Baikov Institute of Metallurgy and
Materials Science of the Russian Academy of Sciences
(Moscow, Russian Federation)

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