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Article: A SECM study of redox activity on Al-Mg-Si alloy in organic/aqueous solution

TitleA SECM study of redox activity on Al-Mg-Si alloy in organic/aqueous solution
Authors
KeywordsScanning electrochemical microscopy
Al-Mg-Si alloy
Localized corrosion mechanism
Issue Date2021
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jallcom
Citation
Journal of Alloys and Compounds, 2021, v. 888, p. article no. 161596 How to Cite?
AbstractSECM (Scanning electrochemical microscopy) coupled with either an organic solution or a neutral aqueous solution was applied to investigate the localized corrosion mechanism of Al-Mg-Si alloy. SEM (Scanning Electron Microscopy) and EDS (Energy Dispersive Spectroscopy) experiments were used to clarify how intermetallic may influence its cathodic activity. In the SECM tests, FcMeOH (Ferrocene methanol) was used as a redox mediator in both two solutions. The SECM results obtained from the organic system reveal some possible sites susceptible to corrosion attack. These sites are composed of large intermetallic particles. Combining with the SECM test conducted in the aqueous system, these sites also show high redox activity. The SECM experiments also reveal that MgSi intermetallic particles after 24-h corrosion show as strong cathodic activity as Al(Fe, Mn)Si.
Persistent Identifierhttp://hdl.handle.net/10722/305836
ISSN
2023 Impact Factor: 5.8
2023 SCImago Journal Rankings: 1.103
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHe, C-
dc.contributor.authorMo, W-
dc.contributor.authorZheng, Y-
dc.contributor.authorFeng, SP-
dc.contributor.authorLuo, B-
dc.date.accessioned2021-10-20T10:15:00Z-
dc.date.available2021-10-20T10:15:00Z-
dc.date.issued2021-
dc.identifier.citationJournal of Alloys and Compounds, 2021, v. 888, p. article no. 161596-
dc.identifier.issn0925-8388-
dc.identifier.urihttp://hdl.handle.net/10722/305836-
dc.description.abstractSECM (Scanning electrochemical microscopy) coupled with either an organic solution or a neutral aqueous solution was applied to investigate the localized corrosion mechanism of Al-Mg-Si alloy. SEM (Scanning Electron Microscopy) and EDS (Energy Dispersive Spectroscopy) experiments were used to clarify how intermetallic may influence its cathodic activity. In the SECM tests, FcMeOH (Ferrocene methanol) was used as a redox mediator in both two solutions. The SECM results obtained from the organic system reveal some possible sites susceptible to corrosion attack. These sites are composed of large intermetallic particles. Combining with the SECM test conducted in the aqueous system, these sites also show high redox activity. The SECM experiments also reveal that MgSi intermetallic particles after 24-h corrosion show as strong cathodic activity as Al(Fe, Mn)Si.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jallcom-
dc.relation.ispartofJournal of Alloys and Compounds-
dc.subjectScanning electrochemical microscopy-
dc.subjectAl-Mg-Si alloy-
dc.subjectLocalized corrosion mechanism-
dc.titleA SECM study of redox activity on Al-Mg-Si alloy in organic/aqueous solution-
dc.typeArticle-
dc.identifier.emailHe, C: hechuan@hku.hk-
dc.identifier.emailFeng, SP: hpfeng@hku.hk-
dc.identifier.authorityFeng, SP=rp01533-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jallcom.2021.161596-
dc.identifier.scopuseid_2-s2.0-85113388042-
dc.identifier.hkuros327740-
dc.identifier.volume888-
dc.identifier.spagearticle no. 161596-
dc.identifier.epagearticle no. 161596-
dc.identifier.isiWOS:000704786500001-
dc.publisher.placeNetherlands-

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