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Article: Atomic Force Microscopy Study of Microbiologically Influenced Corrosion of Mild Steel

TitleAtomic Force Microscopy Study of Microbiologically Influenced Corrosion of Mild Steel
Authors
KeywordsChemistry
Electrochemistry
Issue Date1999
PublisherElectrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JES
Citation
Journal Of The Electrochemical Society, 1999, v. 146 n. 12, p. 4455-4460 How to Cite?
AbstractThe anaerobic corrosion of mild steel in seawater was studied by atomic force microscopy (AFM). In the presence of sulfate reducing bacteria (SRB), corrosion was intensified and accelerated. A biofilm consists of heterogeneous microbial cells and extracellular polymeric substance with interstitial voids was observed on the surface of mild steel coupons. The greatest damage of steel occurred beneath the biofilm, in the form of pitting corrosion. The corrosion of steel can be quantified through section and bearing analyses. The depth of pits increased linearly with time whereas the volume of pits increased as f2.83, the 2.83 power of time. Compared with a control experiment without SRB, the depth of pitting corrosion is about one order of magnitude higher. Weight loss estimates from AFM images are about one order of magnitude smaller than actual weight loss experimental results. The problems of AFM quantification of corrosion rate al extended stage of corrosion are discussed. © 1999 The Electrochemical Society. S0013-4651(99)01-006-X. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/42631
ISSN
2015 Impact Factor: 3.014
2015 SCImago Journal Rankings: 1.157
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorXu, LCen_HK
dc.contributor.authorFang, HHPen_HK
dc.contributor.authorChan, KYen_HK
dc.date.accessioned2007-03-23T04:28:23Z-
dc.date.available2007-03-23T04:28:23Z-
dc.date.issued1999en_HK
dc.identifier.citationJournal Of The Electrochemical Society, 1999, v. 146 n. 12, p. 4455-4460en_HK
dc.identifier.issn0013-4651en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42631-
dc.description.abstractThe anaerobic corrosion of mild steel in seawater was studied by atomic force microscopy (AFM). In the presence of sulfate reducing bacteria (SRB), corrosion was intensified and accelerated. A biofilm consists of heterogeneous microbial cells and extracellular polymeric substance with interstitial voids was observed on the surface of mild steel coupons. The greatest damage of steel occurred beneath the biofilm, in the form of pitting corrosion. The corrosion of steel can be quantified through section and bearing analyses. The depth of pits increased linearly with time whereas the volume of pits increased as f2.83, the 2.83 power of time. Compared with a control experiment without SRB, the depth of pitting corrosion is about one order of magnitude higher. Weight loss estimates from AFM images are about one order of magnitude smaller than actual weight loss experimental results. The problems of AFM quantification of corrosion rate al extended stage of corrosion are discussed. © 1999 The Electrochemical Society. S0013-4651(99)01-006-X. All rights reserved.en_HK
dc.format.extent10521095 bytes-
dc.format.extent25600 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherElectrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JESen_HK
dc.relation.ispartofJournal of the Electrochemical Societyen_HK
dc.rightsReproduced with permission from Journal of Electrochemical Society, 1999, v. 146 n. 12, p. 4455-4460. Copyright 1999, The Electrochemical Society. Permission is not needed if figures and/or tables from one ECS publication will be reused in another forthcoming ECS publicationen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectChemistryen_HK
dc.subjectElectrochemistryen_HK
dc.titleAtomic Force Microscopy Study of Microbiologically Influenced Corrosion of Mild Steelen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0013-4651&volume=146&issue=12&spage=4455&epage=4460&date=1999&atitle=Atomic+Force+Microscopy+Study+of+Microbiologically+Influenced+Corrosion+of+Mild+Steelen_HK
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.authorityFang, HHP=rp00115en_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1149/1.1392658en_HK
dc.identifier.scopuseid_2-s2.0-0000425509en_HK
dc.identifier.hkuros51635-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0000425509&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume146en_HK
dc.identifier.issue12en_HK
dc.identifier.spage4455en_HK
dc.identifier.epage4460en_HK
dc.identifier.isiWOS:000084251900020-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridXu, LC=8505464800en_HK
dc.identifier.scopusauthoridFang, HHP=7402542625en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK

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