Effect of in site strain on passivated property of the 316L stainless steels

Jinlong Lyu, Liang Tongxiang, Wang Chen, Guo Ting

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The effect of the strain of 316L stainless steel on its corrosion resistance in borate buffer solution was investigated by in site tensile test and the electrochemical impedance spectroscopy measurements. It was found that the corrosion resistance of the 316L stainless steel decreased with the increasing of in site strain. The lower corrosion resistance of the stainless steel during in site strain was mainly attributed to the higher doping concentration in passive film. Especially, with the increasing of in site strain, the concentrations of acceptor (i.e., cation vacancies) in the passive films significantly increased. More acceptor concentrations reduced the compactness of the passive film and its corrosion resistance. Moreover, two exponential relationships were found between in site strain and the charge transfer resistance of the passive film and between in site strain and total doping concentrations in passive film, respectively.

Original languageEnglish
Pages (from-to)32-36
Number of pages5
JournalMaterials Science and Engineering C
Volume61
DOIs
Publication statusPublished - 2016 Apr 1

Keywords

  • EIS
  • Passive films
  • Stainless steel
  • XRD

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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