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Iron hydrogenation under atmospheric corrosion. Studies using a scanning vibrating microscope
RISE, Swerea, KIMAB. (Institut de la Corrosion)
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
2015 (English)In: Protection of Metals and Physical Chemistry of Surfaces, ISSN 2070-2051, Vol. 51, no 3, p. 347-359Article in journal (Refereed) Published
Abstract [en]

A scanning vibrating capacitor (SVC, Kelvin probe) is used to study hydrogenation of iron and steel under the conditions of atmospheric corrosion. It is shown that hydrogen that forms in the course of corrosion or under cathodic polarization diffuses through the membrane and interacts with its opposite side, causing a decrease in the surface Volta potential. It is proposed that atomic hydrogen reduces Fe3+ ions in the passive film. It is shown that the SVC technique is informative for registration of local regions of hydrogenated metal at very low hydrogen flow into steel.

Place, publisher, year, edition, pages
Maik Nauka Publishing / Springer SBM , 2015. Vol. 51, no 3, p. 347-359
Keywords [en]
Cathodic polarization, Corrosion, Hydrogen, Hydrogenation, Atomic hydrogen, Hydrogen flow, Hydrogenated metals, Iron and steel, Local region, Passive films, Scanning vibrating capacitors, Volta potential, Atmospheric corrosion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40030DOI: 10.1134/S2070205115030181Scopus ID: 2-s2.0-84929076534OAI: oai:DiVA.org:ri-40030DiVA, id: diva2:1359336
Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-16Bibliographically approved

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