Microelectrochemical investigation of pit initiation and selective dissolution between MnS and stainless steel

Aya Chiba, Izumi Muto, Yu Sugawara, Nobuyoshi Hara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In a solution with Cl-ions, the trench at the MnS/steel boundary was found to be formed by the dissolution of the stainless steel as a precursor of pit initiation. The synergistic effect of the MnS dissolution products with Cl-ions caused dissolution on the stainless steel side of the boundary. The proposed pit initiation mechanism at the MnS inclusions is follows: 1) the dissolution of the stainless steel is caused by the synergistic effect of the MnS dissolution products with Cl-ions, which made the trench at the boundary; 2) the pits initiate in this trench because the trench is the occluded area, and the preferred site for pit initiation.

Original languageEnglish
Title of host publicationECS Transactions
PublisherElectrochemical Society Inc.
Pages15-23
Number of pages9
Edition47
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2013

Publication series

NameECS Transactions
Number47
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

ASJC Scopus subject areas

  • Engineering(all)

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