Surface composition of stainless steel at active corrosion

Tero Hakkarainen, Ingemar Olefjord

Research output: Contribution to journalArticleScientificpeer-review

Abstract

X-ray photo-electron spectroscopy was used to study the surface composition of stainless steel (AISI 304) after active corrosion in 2.5 M H2SO4 or 2.5 M H2SO4 + 0.5 M NaCl solutions under electrochemically controlled conditions. Using two models with different assumptions about the element distributions, possible concentration profiles for Fe, Cr, Ni, Mo and Cu in their metallic and oxidized states were evaluated. It was concluded that Ni, Cu and Mo are enriched in their metallic states on the surface, possibly mainly on separate surface regions not containing Fe and Cr.

Original languageEnglish
Pages (from-to)189 - 193
Number of pages5
JournalPhysica Scripta
VolumeT4
DOIs
Publication statusPublished - 1983
MoE publication typeNot Eligible

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