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Effects of dissolved oxygen on electrochemical and semiconductor properties of 316L stainless steel

  • Zhicao Feng
  • , Xuequn Cheng*
  • , Chaofang Dong
  • , Lin Xu
  • , Xiaogang Li
  • *Corresponding author for this work
  • University of Science and Technology Beijing

Research output: Contribution to journalArticlepeer-review

Abstract

The effects of dissolved oxygen on the electrochemical behavior and semiconductor properties of passive film formed on 316L SS in three solutions with different dissolved oxygen were studied by using polarization curve, Mott-Schottky analysis and the point defect model (PDM). The results show that higher dissolved oxygen accelerates both anodic and cathodic process. Based on Mott-Schottky analysis and PDM, the key parameters for passive film, donor density Nd, flat-band potential Efb and diffusivity of defects D0 were calculated. The results display that N d(1-7 × 1027m-3) and D0(1-18 × 10-16cm2/s) increase and Efb value reduces with the dissolved oxygen in solution.

Original languageEnglish
Pages (from-to)171-177
Number of pages7
JournalJournal of Nuclear Materials
Volume407
Issue number3
DOIs
StatePublished - 31 Dec 2010
Externally publishedYes

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