Microelectrochemical investigation of hydrogen absorption and dissolution behavior of MnS inclusions in carbon steel

Izumi Muto, Jun Shinozaki, Tomohiko Omura, Mitsuhiro Numata, Nobuyoshi Hara

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

3 Citations (Scopus)

Abstract

Microelectrochemical polarization and silver decoration techniques were performed on the small area with and without MnS inclusions. MnS inclusions were found to be partially dissolved in the potential range from 0.15 to -0.45V (vs. Ag/AgCl, 3.33M KCl) in a boric-borate buffer (pH 8.45) with 10 mM NaCl, whereas the entire surface of the inclusions was dissolved below and above this potential range. Silver deposition occurred only on and around MnS inclusions below -0.2V, which generally corresponded to the stable region of hydrogen sulfide ions. When MnS inclusions partially dissolved, silver deposition occurred only in the dissolved area The dissolution species from MnS inclusions seems to promote hydrogen absorption reaction.

Original languageEnglish
Title of host publicationHigh Resolution Characterization of Corrosion Processes 2
Pages9-20
Number of pages12
Edition35
DOIs
Publication statusPublished - 2011
EventHigh Resolution Characterization of Corrosion Processes 2 - 218th ECS Meeting - Las Vegas, NV, United States
Duration: 2010 Oct 102010 Oct 15

Publication series

NameECS Transactions
Number35
Volume33
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherHigh Resolution Characterization of Corrosion Processes 2 - 218th ECS Meeting
CountryUnited States
CityLas Vegas, NV
Period10/10/1010/10/15

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Microelectrochemical investigation of hydrogen absorption and dissolution behavior of MnS inclusions in carbon steel'. Together they form a unique fingerprint.

Cite this