TY - GEN
T1 - Microelectrochemical investigation of hydrogen absorption and dissolution behavior of MnS inclusions in carbon steel
AU - Muto, Izumi
AU - Shinozaki, Jun
AU - Omura, Tomohiko
AU - Numata, Mitsuhiro
AU - Hara, Nobuyoshi
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
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U2 - 10.1149/1.3577749
DO - 10.1149/1.3577749
M3 - Conference contribution
AN - SCOPUS:84857401698
SN - 9781607682455
T3 - ECS Transactions
SP - 9
EP - 20
BT - High Resolution Characterization of Corrosion Processes 2
T2 - High Resolution Characterization of Corrosion Processes 2 - 218th ECS Meeting
Y2 - 10 October 2010 through 15 October 2010
ER -