Effects of S content and surface finish on pitting corrosion of austenitic stainless steels containing Mo in chloride and bromide solutions

Michio Kaneko, Takehide Senuma

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Pitting corrosion behavior of austenitic stainless steels with Mo was investigated in chloride and bromide solutions. The steels with higher S content as 0.009mass% showed higher pitting potential in 1 kmol/m3 bromide solution than 1 kmol/m3 chloride solution. On the other hand, the steels with lower S content as 0.0003 mass% showed opposite results. The higher pitting potential was observed in chloride solution. This tendency became profound with passivation treatment by nitric acid. From the experimental results above, it is highly believed that chloride ions are more detrimental to sulfide inclusions induced pitting than bromide ions, whereas pitting due to breakdown of passive film other than sulfide inclusion is more easily caused in solutions containing bromide ions than chloride ions.

Original languageEnglish
Pages (from-to)1331-1334
Number of pages4
Journalisij international
Volume45
Issue number9
DOIs
Publication statusPublished - 2005

Keywords

  • Bromide ions
  • Chloride ions
  • Pitting corrosion
  • Stainless steels
  • Sulfide inclusion

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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