Influence of Mechanical Stress on the Potential Distribution on a 301 LN Stainless Steel Surface
2015 (English)In: Journal of the Electrochemical Society, ISSN 0013-4651, E-ISSN 1945-7111, C465-C472 p.Article in journal (Refereed) Published
The aim of the present work was to study the influence of the stress on the electrode potential of the austenitic stainless steel301LN using Scanning Kelvin Probe (SKP). It was found that elastic deformation reversibly ennobles the potential whereas plasticdeformation decreases the potential in both tensile and compressive deformation mode and this decrease is retained even 24 h afterremoval of the load. To interpret the stress effects, different surface preparations were used and the composition and thickness ofthe passive film were determined by GDOES. Slip steps formed due to plastic deformation were observed using AFM. The effect ofplastic strain on the potential is explained by the formation of dislocations, which creates more a defective passive film.
Place, publisher, year, edition, pages
Electrochemical Society, 2015. C465-C472 p.
IdentifiersURN: urn:nbn:se:kth:diva-186201DOI: 10.1149/2.0511509jesOAI: oai:DiVA.org:kth-186201DiVA: diva2:926119
QC 201605162016-05-042016-05-042016-05-26Bibliographically approved