On the effect of plastic pre-straining on the corrosion behaviour of a duplex stainless steel and how the emergence of slip steps affects the hydrogen evolution reaction kinetics

Charles David, Fiona Ruel, Clément Boissy, Virginie Roche, Muriel Véron, Ricardo P. Nogueira

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The effect of increasing pre-straining on the corrosion behaviour of UNS S32304 duplex stainless steel has been studied using potentiodynamic tests in a highly acidic chloride-rich solution. The emergence of slip steps in the austenitic phase has been particularly addressed showing that the hence modified topographies had a significant impact on the kinetics of the Hydrogen Evolution Reaction (HER) that, in turn, tuned a non-monotonic behaviour of the corrosion rate. An attempt is made to link the variation of the Electron Work Function (EWF) of the surface with the electrochemical results by quantifying slip steps using Atomic Force Microscopy.

Original languageBritish English
Article number109167
JournalCorrosion Science
Volume179
DOIs
StatePublished - Feb 2021

Keywords

  • AFM
  • Effects of strain
  • Kinetic parameters
  • Polarisation
  • Stainless steel

Fingerprint

Dive into the research topics of 'On the effect of plastic pre-straining on the corrosion behaviour of a duplex stainless steel and how the emergence of slip steps affects the hydrogen evolution reaction kinetics'. Together they form a unique fingerprint.

Cite this