Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Corrosion inhibition of aluminium alloy AA6063-T5 by vanadates: Local surface chemical events elucidated by confocal Raman micro-spectroscopy
KTH Royal Institute of Technology, Sweden; Belarusian State Technological University, Belarus.
RISE - Research Institutes of Sweden, Bioscience and Materials, Surface, Process and Formulation.ORCID iD: 0000-0002-4697-9192
KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0002-3029-6493
Gdansk University of Technology, Poland.
Show others and affiliations
2019 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 148, p. 237-250Article in journal (Refereed) Published
Abstract [en]

Chemical interactions between aqueous vanadium species and aluminium alloy AA6063-T5 were investigated in vanadate-containing NaCl solutions. Confocal Raman and X-ray photoelectron spectroscopy experiments were utilised to gain insight into the mechanism of corrosion inhibition by vanadates. A greenish-grey coloured surface layer, consisting of V+4 and V+5 polymerized species, was seen to form on the alloy surface, especially on top of cathodic micrometre-sized IMPs, whereby suppressing oxygen reduction kinetics. The results suggest a two-step mechanism of corrosion inhibition in which V+5 species are first reduced to V+4 or V+3 species above cathodic IMPs, and then oxidized to mixed-valence V+5/V+4 polymerized compounds. 

Place, publisher, year, edition, pages
2019. Vol. 148, p. 237-250
Keywords [en]
A. Alloy, A. Aluminium, B. Raman spectroscopy, B. SEM, B. XPS, C. Vanadate inhibitor, Corrosion inhibitors, Electrolytic reduction, Sodium alloys, Sodium chloride, Transition metal compounds, Vanadium alloys, X ray photoelectron spectroscopy, Chemical interactions, Corrosion inhibition, Local surfaces, Mechanism of corrosion, Oxygen reduction kinetics, Two-step mechanisms, Vanadium species, Aluminum corrosion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-37038DOI: 10.1016/j.corsci.2018.12.011Scopus ID: 2-s2.0-85059158841OAI: oai:DiVA.org:ri-37038DiVA, id: diva2:1280051
Note

 Funding details: Belarusian State University, BSU; Funding details: IP2015067574; Funding details: Ministry of Education of the Republic of Belarus, 20161135; Funding details: Stiftelsen för Strategisk Forskning; Funding details: Kungliga Tekniska Högskolan, KTH; Funding details: Sjögren’s Syndrome Foundation, RMA11-0090; Funding details: Knut och Alice Wallenbergs Stiftelse;

Available from: 2019-01-17 Created: 2019-01-17 Last updated: 2019-06-28Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Sommertune, JensÖrnek, Cem

Search in DiVA

By author/editor
Sommertune, JensÖrnek, Cem
By organisation
Surface, Process and Formulation
In the same journal
Corrosion Science
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 22 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7