The effect of surface enriched chromium and grain refinement by ball milling on corrosion resistance of 316L stainless steel

Lv Jinlong, Yang Meng, Hideo Miura, Liang Tongxiang

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Surface chromium enrichment on the 316L stainless steel was obtained by ball milling technique. The present study showed that chromium enrichment on the surface of the 316L stainless steel after ball milling promoted strain-induced α′-martensite transformation. The electrochemical test results showed that nanocrystallization and surface chromium enrichment nullified the adverse influence of α′-martensite on the corrosion resistance. In addition, more chromium on the surface of 316L stainless steel improved its corrosion resistance. More chromium oxides improved corrosion resistance of 316L stainless steel in borate buffer solution. This was attributed to the fact that more chromium reduced acceptor concentration in passive film, which enhanced the corrosion resistance of 316L stainless steel.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalMaterials Research Bulletin
Volume91
DOIs
Publication statusPublished - 2017 Jul 1

Keywords

  • AISI 316L
  • Ball milling
  • Corrosion
  • Electrochemical impedance spectroscopy

ASJC Scopus subject areas

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

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