Perforated covers for propagating pits

Corrosion pits on stainless steel often grow in such a way as to undermine the original surface, and, consequently, a thin layer of metal and oxide is left over the growing pit cavity. These pit covers develop a porous, lacelike structure, and a model for the development of this structure is describ...

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Bibliographic Details
Published inJournal of the Electrochemical Society Vol. 145; no. 4; pp. 1101 - 1108
Main Authors LAYCOCK, N. J, WHILE, S. P, NOB, J. S, WILSON, R. T, NEWMAN, R. C
Format Journal Article
LanguageEnglish
Published Pennington, NJ Electrochemical Society 01.04.1998
Subjects
Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
Austenitic stainless steel
Pitting corrosion
Stainless steel-304
Morphology
Concentration effect
Temperature effect
Corrosion current
Pinhole
Sulfates
Modeling
Transients
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Summary:Corrosion pits on stainless steel often grow in such a way as to undermine the original surface, and, consequently, a thin layer of metal and oxide is left over the growing pit cavity. These pit covers develop a porous, lacelike structure, and a model for the development of this structure is described. Calculations based on this model produce pit morphologies showing the main features of real pits observed in the scanning electron microscope and also produce theoretical current transients resembling those recorded experimentally.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0013-4651
1945-7111
DOI:10.1149/1.1838423