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Influence of mechanical stress on the potential distribution on a 301 LN stainless steel surface
RISE - Research Institutes of Sweden (2017-2019), Materials and Production, KIMAB.
RISE - Research Institutes of Sweden (2017-2019), Materials and Production, KIMAB. (Institut de la Corrosion)
RISE - Research Institutes of Sweden (2017-2019), Materials and Production, KIMAB. (Institut de la Corrosion)ORCID iD: 0000-0002-6847-5446
Jernkontoret, Sweden.
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2015 (English)In: Journal of the Electrochemical Society, ISSN 0013-4651, E-ISSN 1945-7111, Vol. 162, no 9, p. C465-C472Article in journal (Refereed) Published
Abstract [en]

The aim of the present work was to study the influence of the stress on the electrode potential of the austenitic stainless steel 301LN using Scanning Kelvin Probe (SKP). It was found that elastic deformation reversibly ennobles the potential whereas plastic deformation decreases the potential in both tensile and compressive deformation mode and this decrease is retained even 24 h after removal of the load. To interpret the stress effects, different surface preparations were used and the composition and thickness of the passive film were determined by GDOES. Slip steps formed due to plastic deformation were observed using AFM. The effect of plastic strain on the potential is explained by the formation of dislocations, which creates more a defective passive film.

Place, publisher, year, edition, pages
2015. Vol. 162, no 9, p. C465-C472
Keywords [en]
deformation, Electrode potential, passive film, Scanning, Kelvin, Probe stainless steel, Work Function
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-12776DOI: 10.1149/2.0511509jesScopus ID: 2-s2.0-84937036307OAI: oai:DiVA.org:ri-12776DiVA, id: diva2:972969
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2023-05-16Bibliographically approved

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Publisher's full textScopushttp://jes.ecsdl.org/content/162/9/C465

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Vucko, FlavienThierry, Dominique

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