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dc.contributor.authorSherwood, D
dc.contributor.authorEmmanuel, Bosco
dc.contributor.authorCole, Ivan
dc.date.accessioned2017-11-23T00:39:54Z
dc.date.available2017-11-23T00:39:54Z
dc.date.issued2016
dc.identifier.issn0013-4651
dc.identifier.doi10.1149/2.0721610jes
dc.identifier.urihttp://hdl.handle.net/10072/173720
dc.description.abstractGlobal Level of Connected Moisture (GLCM) and total moisture content (TMC) in porous over-layers on metals play a vital role in atmospheric corrosion. Using a model based on Kelvin condensation and Extended Hoshen-Kopelman algorithm these are computed as a function of relative humidity (RH) for 17 different over-layers with varying degrees of affinity to water. GLCM exhibits a critical RH (RH*) but TMC does not. The computed RH* agrees with the experimental result for iron for selected model parameters. RH* values are computed for several metal oxide and polymer over-layers on metals in chloride-bearing and non-chloride-bearing atmospheres. RH*of chloride-bearing atmospheres is found to be less than that of non-chloride-bearing atmospheres. A new formula is advanced for time of wetness using GLCM. Using RH and temperature data obtained from India Meteorological Department for three cities, time of wetness (TOW) is computed for the 17 systems. These results are compared with the predictions of a simplistic formula presently available.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherThe Electrochemical Society Inc.
dc.relation.ispartofpagefromC675
dc.relation.ispartofpagetoC685
dc.relation.ispartofissue10
dc.relation.ispartofjournalJournal of the Electrochemical Society
dc.relation.ispartofvolume163
dc.subject.fieldofresearchMaterials Engineering not elsewhere classified
dc.subject.fieldofresearchMacromolecular and Materials Chemistry
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)
dc.subject.fieldofresearchMaterials Engineering
dc.subject.fieldofresearchcode091299
dc.subject.fieldofresearchcode0303
dc.subject.fieldofresearchcode0306
dc.subject.fieldofresearchcode0912
dc.titleMoisture distribution in porous oxide and polymer over-layers and critical relative humidity and time of wetness for chloride and non-chloride-bearing atmospheres for atmospheric corrosion of metals
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorCole, Ivan


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