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A Study of Accelerated Corrosion of Stainless Steels under Highly Oxidizing Conditions

TitleA Study of Accelerated Corrosion of Stainless Steels under Highly Oxidizing Conditions
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2024
AuthorsUbaldini, A., Telloli C., Rizzo Antonella, Gessi Alessandro, Marghella Giuseppe, Bruni Stefania, Calistri S., Gennerini F., and Pintilei G.
JournalCoatings
Volume14
ISSN20796412
Abstract

The corrosion behavior of certain steels under extremely oxidative conditions, simulating the impact of water radiolysis on stainless steels, has been investigated. Radiolysis generates aggressive species, including radicals, solvated electrons, and hydrogen peroxide, potentially leading to corrosion over time in materials typically considered resistant. To expedite the kinetics of this phenomenon, drastic conditions were employed, involving high concentrations of peroxide in a strongly acidic environment. Under these conditions, corrosion can manifest rapidly. The varied responses of different steels are contingent upon their inherent nature and chemical composition, notably the chromium and nickel content. Steels with higher chromium and nickel concentrations exhibit increased resistance to corrosion, even in such severe environments. Microscopic corrosion mechanisms involve pitting and intergranular corrosion. Pitting results in the formation of craters on surfaces, while intergranular corrosion leads to the detachment of grains. © 2024 by the authors.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85191361458&doi=10.3390%2fcoatings14040390&partnerID=40&md5=58cecba388a5baa9d55e4280274a1c5d
DOI10.3390/coatings14040390
Citation KeyUbaldini2024