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Inhibiting localized corrosion of aluminum and aluminum alloy by rare earth metal compounds : behaviors and characteristics observed using an electrochemically integrated multi-electrode array

Tan, Yongjun and Liu, Tie 2013, Inhibiting localized corrosion of aluminum and aluminum alloy by rare earth metal compounds : behaviors and characteristics observed using an electrochemically integrated multi-electrode array, Journal of the electrochemical society, vol. 160, no. 4, pp. C147-C158, doi: 10.1149/2.068304jes.

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Title Inhibiting localized corrosion of aluminum and aluminum alloy by rare earth metal compounds : behaviors and characteristics observed using an electrochemically integrated multi-electrode array
Author(s) Tan, YongjunORCID iD for Tan, Yongjun orcid.org/0000-0002-0765-108X
Liu, Tie
Journal name Journal of the electrochemical society
Volume number 160
Issue number 4
Start page C147
End page C158
Total pages 12
Publisher Electrochemical Society
Place of publication New York, N.Y.
Publication date 2013
ISSN 0013-4651
1945-7111
Summary An electrochemically integrated multi-electrode array namely the wire beam electrode (WBE) has been used to characterize the behavior of cerium chloride (CeCl3) and lanthanum chloride (LaCl3) in inhibiting localized corrosion of AA2024-T3 and AA1100. CeCl3 has been found to inhibit AA2024-T3 corrosion in 0.005 M sodium chloride (NaCl) solution by suppressing galvanic corrosion activities and by creating a large number of insignificant anodes. It has also been shown to inhibit localized corrosion of AA1100 in 0.5 M NaCl solution by promoting the random distribution of minor anodes. LaCl3 has been found to inhibit localized corrosion of AA2024-T3 at 1000 ppm, although its efficiency dropped significantly when its concentration decreased to 500 ppm. The addition of CeCl3 and LaCl3 to corrosion testing cells at later stages was unable to effectively suppress existing corrosion anodes.
Language eng
DOI 10.1149/2.068304jes
Field of Research 091207 Metals and Alloy Materials
030301 Chemical Characterisation of Materials
030604 Electrochemistry
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30055364

Document type: Journal Article
Collection: School of Engineering
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Created: Tue, 27 Aug 2013, 12:07:13 EST

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