Тип публикации: научное издание

Год издания: 2022

Аннотация: The diffusion of hydrogen from an acid solution through an amorphous alloy-membrane of Fe₉₂Si₆B₂ composition occurring in a Devanathan cell has been investigated in this work. It has been established that hydrogen diffusion decreases as the acidity of the medium increases, while the ionic strength of the solution remains unchanged. Possible variants of hydrogen interaction with the nonequilibrium structure of the studied alloy have been discussed. The probable mechanisms of oxide formation on the alloy surface blocking the hydrogen-free passage through the membrane are suggested and the kinetics of these processes, depending on the acidity of the working solution, are considered. An insignificant change in mechanical characteristics of amorphous alloy Fe₉₂Si₆B₂ (ultimate strength, microhardness, Young's modulus) is noted as a result of the influence of the working solution containing hydrogen on it. The expansion of the range of applications of amorphous metal alloys raises the problems of studying the structure and properties of these materials after various kinds of influences, in particular, after exposure to environments that lead to hydrogen embrittlement and corrosion. The increase in the service life of products made of amorphous metallic alloys is inversely related to their hydrogen content. The degree of hydrogenation of metal alloys is determined by the diffusion capacity of hydrogen. The latter can be estimated by measuring the current density of diffusing hydrogen through a membrane made of the alloy under study. In this connection, the work aims to study the solid-phase diffusion of hydrogen through a membrane made of amorphous alloy Fe₉₂Si₆B₂ and changes in the mechanical properties of such a membrane (ultimate strength, ductility, microhardness, Young's modulus) after exposure to hydrogen-containing solutions.

Журнал: Materials in external fields

Номера страниц: 73-83

Место издания: Novokuznetsk

Издатель: Сибирский государственный индустриальный университет

• Fedorov V.A. (Derzhavin Tambov State University)
• Pluzhnikova T.N. (Derzhavin Tambov State University)
• Balybin D.V. (Derzhavin Tambov State University)
• Berezner A.D. (Derzhavin Tambov State University)
• Mikhlin Y.L. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences)
• Fedotov D.Yu. (Derzhavin Tambov State University)

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