TY - GEN
T1 - Visualizing initiation dynamics of stress corrosion cracking in stainless steels
AU - Watanabe, Yutaka
AU - Ohtake, Ryo
AU - Hiroshi, A. B.E.
PY - 2009
Y1 - 2009
N2 - In an initiation stage of stress corrosion cracking, a number of very local anodic events and their repassivation occur in stochastic manner. The target of this study is to develop an experimental method, which enables us to observe the local and transient anodic events taking place in a wide area in the SCC initiation stages and resultant formation of SCC embryo with a resolution of a few micro-meters. Visualization method for SCC initiation processes has been successfully developed by using coloration reaction between Fe and phenanthroline. Performance of the method has been demonstrated for SCC of sensitized 304 stainless steels. The sensitivity was as good as to visualize formation of 3 micro-meter pit. For a sensitized stainless steel - a sodium thiosulfate system.
AB - In an initiation stage of stress corrosion cracking, a number of very local anodic events and their repassivation occur in stochastic manner. The target of this study is to develop an experimental method, which enables us to observe the local and transient anodic events taking place in a wide area in the SCC initiation stages and resultant formation of SCC embryo with a resolution of a few micro-meters. Visualization method for SCC initiation processes has been successfully developed by using coloration reaction between Fe and phenanthroline. Performance of the method has been demonstrated for SCC of sensitized 304 stainless steels. The sensitivity was as good as to visualize formation of 3 micro-meter pit. For a sensitized stainless steel - a sodium thiosulfate system.
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M3 - Conference contribution
AN - SCOPUS:77953729148
SN - 9781615677962
T3 - European Corrosion Congress 2009, EUROCORR 2009
SP - 2836
BT - European Corrosion Congress 2009, EUROCORR 2009
T2 - European Corrosion Congress 2009, EUROCORR 2009
Y2 - 6 September 2009 through 10 September 2009
ER -