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Inhibition of corrosion on AA2024-T3 by rare earths & mercaptoacetate

Catubig, R., Forsyth, M., Hinton, B., Cole, I. and Hughes, A. 2012, Inhibition of corrosion on AA2024-T3 by rare earths & mercaptoacetate, in ACA Corrosion & Prevention 2012 : Proceedings of the Annual Australasian Corrosion Association Conference, Australasian Corrosion Association, [Melbourne, Vic.], pp. 1-10.

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Title Inhibition of corrosion on AA2024-T3 by rare earths & mercaptoacetate
Author(s) Catubig, R.
Forsyth, M.
Hinton, B.
Cole, I.
Hughes, A.
Conference name Australasian Corrosion Association. Conference (2012 : Melbourne, Victoria)
Conference location Melbourne, Victoria
Conference dates 11-14 Nov. 2012
Title of proceedings ACA Corrosion & Prevention 2012 : Proceedings of the Annual Australasian Corrosion Association Conference
Editor(s) [Unknown]
Publication date 2012
Conference series Australasian Corrosion Association Conference
Start page 1
End page 10
Total pages 10
Publisher Australasian Corrosion Association
Place of publication [Melbourne, Vic.]
Keyword(s) AA2024-T3
cerium
praseodymium
mercaptoacetate
Summary The use of the aluminium alloy AA2024-T3 has long been associated with a strong vulnerability to localised corrosion. Dealloying and pitting corrosion can occur on and around intermetallic particles when exposed to aggressive environments such as sodium chloride electrolytes. Specific combinations of rare earths and organic compounds have demonstrated strong synergistic inhibition on the AA2024-T3 alloy. This work has focused on rare earths and organic compounds containing thiol functional groups. It is believed that the sulphur in the thiol group can form protective films over the surface of copper-rich intermetallic particles due to the affinity between copper and sulphur. Previous studies with the multiwell tests have identified that solutions containing sodium mercaptoacetate provided strong inhibition at pH 3 and 6. This work presents the initial findings from the polarisation tests and constant immersion corrosion experiments in the presence of sodium mercaptoacetate.
ISBN 9781622769698
Language eng
Field of Research 091207 Metals and Alloy Materials
030604 Electrochemistry
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category E1 Full written paper - refereed
Persistent URL http://hdl.handle.net/10536/DRO/DU:30052879

Document type: Conference Paper
Collection: Institute for Frontier Materials
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