Comparison of corrosion behavior between coarse grained and nano/ultrafine grained 304 stainless steel by EWF, XPS and EIS

Jinlong Lyu, Hongyun Luo

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The electron work function in coarse grained stainless steel was higher than that in nano/ultrafine grained one. More M2O3 types oxides and thicker passive film were observed in nano/ultrafine grained 304 stainless steel. The electrochemical impedance spectroscopy results showed that grain refinement improved corrosion resistance of 304 stainless steel. The results obtained indicated that the impedance increase was attributed to decreased electron work function. Lower electron work function facilitated to form thicker passive films. The same characteristics were observed with the increasing of chloride ion concentration.

Original languageEnglish
Pages (from-to)469-473
Number of pages5
JournalJournal of Nuclear Materials
Volume452
Issue number1-3
DOIs
Publication statusPublished - 2014 Jan 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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