In situ studies of passive film chemistry using X-ray absorption spectroscopy

Download
  1. (PDF, 564 KB)
  2. Get@NRC: In situ studies of passive film chemistry using X-ray absorption spectroscopy (Opens in a new window)
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleCorrosion Science
Volume35
Issue1-4
Pages1925; # of pages: 7
AbstractThe application of X-ray absorption spectroscopy to the study of passivation of thin metal films is discussed. Data are presented which demonstrate the effectiveness of the technique for monitoring both potential- and time-dependent data on valency and selective dissolution from passive films. It is shown that iron undergoes reductive dissolution from the passive oxide film on both pure iron and Fe-26Cr, in the latter case leading to enrichment of chromium in the passive film. Transpassive dissolution of chromium can take place on Al-Cr and Fe-Cr only after it has been enriched in the passive film by dissolution of the other alloying element. Rapid polarization of Al-Cr leads to trapping of electroactive chromium in the passive film.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences; NRC Institute for Chemical Process and Environmental Technology
Peer reviewedYes
NRC number52300
NPARC number16330174
Export citationExport as RIS
Report a correctionReport a correction
Record identifier7427ab3e-c59f-40b3-b394-32890cb2bd2b
Record created2010-11-08
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)