Corrosion characteristics of nanostructured layer on 316L stainless steel fabricated by cavitation-annealing

C. T. Kwok, F. T. Cheng, Hau Chung Man, W. H. Ding

Research output: Journal article publicationJournal articleAcademic researchpeer-review

61 Citations (Scopus)

Abstract

A nanocrystalline surface layer on 316L stainless steel was fabricated by cavitation followed by low-temperature annealing. The corrosion characteristics of the nanostructured surface in 0.9 wt.% NaCl solution at 25 °C were investigated by electrochemical measurements. The nanocrystalline surface leads to a lower susceptibility to pitting corrosion and higher repassivation power as indicated by noble shift in the pitting and protection potentials, and lower corrosion current density. In addition, the pitting resistance of 316L increases with the decrease in grain size.
Original languageEnglish
Pages (from-to)2419-2422
Number of pages4
JournalMaterials Letters
Volume60
Issue number19
DOIs
Publication statusPublished - 1 Aug 2006

Keywords

  • Cavitation-annealing
  • Nano-structure
  • Pitting corrosion
  • Stainless steel

ASJC Scopus subject areas

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

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