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Influence of uv light on passive behavior of the 304 stainless steel in acid solution

  • H. Luo
  • , X. G. Li*
  • , C. F. Dong
  • , K. Xiao
  • , X. Q. Cheng
  • *Corresponding author for this work
  • University of Science and Technology Beijing

Research output: Contribution to journalArticlepeer-review

Abstract

The passive behavior of the passive film on 304 stainless steel in 0.1 M H2SO4 with or without uv light were investigated by potentiodynamic polarization, EIS, Mott-Schottky analysis. The composition of passive film was analysed by XPS. The results indicated that there existed two donor levels in the space charge layer of the passive film, the uv light irradiation could improve the stability of passive film and decrease the passive current destiny. Furthermore, the uv light irradiation might also affect the composition of the passive film, which enhanced the Cr and Ni enrichment in the passive film.

Original languageEnglish
Pages (from-to)691-697
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume74
Issue number5
DOIs
StatePublished - May 2013
Externally publishedYes

Keywords

  • A. Metals
  • A. Thin films
  • D. Electrochemical properties
  • D. Semiconductivity

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