The influence of rare earth mercaptoacetate on the initiation of corrosion on AA2024-T3 Part I: average statistics of each intermetallic composition

Catubig, R., Hughes, A.E., Cole, I.S., Chen, F.F., MacRae, C.M., Wilson, N.C., Glenn, A.M., Hinton, B.R.W. and Forsyth, M. 2015, The influence of rare earth mercaptoacetate on the initiation of corrosion on AA2024-T3 Part I: average statistics of each intermetallic composition, Corrosion science, vol. 95, pp. 22-39, doi: 10.1016/j.corsci.2015.01.056.

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Title The influence of rare earth mercaptoacetate on the initiation of corrosion on AA2024-T3 Part I: average statistics of each intermetallic composition
Author(s) Catubig, R.
Hughes, A.E.
Cole, I.S.
Chen, F.F.
MacRae, C.M.
Wilson, N.C.
Glenn, A.M.
Hinton, B.R.W.ORCID iD for Hinton, B.R.W. orcid.org/0000-0002-0894-1388
Forsyth, M.ORCID iD for Forsyth, M. orcid.org/0000-0002-4273-8105
Journal name Corrosion science
Volume number 95
Start page 22
End page 39
Total pages 18
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-06
ISSN 0010-938X
Keyword(s) A. Alloy
A. Aluminium
A. Rare earth elements
B. EPMA
C. Neutral inhibition
Science & Technology
Technology
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Materials Science
Alloy
Aluminium
Rare earth elements
EPMA
Neutral inhibition
LASER-SCANNING MICROSCOPY
ALUMINUM-ALLOYS
LOCALIZED CORROSION
INHIBITORS
PARTICLES
2024-T3
CERIUM
CATHODOLUMINESCENCE
MICROSTRUCTURE
COPPER
Summary De-alloying of S-phase in AA2024-T3 in the presence chlorides, is well-known. However, it is unclear how rare earth mercaptoacetate inhibitors affect this process when immersed in a 0.1. M NaCl solution. This paper analyses data obtained using EPMA on AA2024-T3 surfaces before and after a 16. min immersion period. Cerium and praseodymium mercaptoacetate inhibited the de-alloying process of S-phase particles. Although no significant change in composition was observed for cathodic intermetallics, each appeared to participate in local corrosion reactions as evidenced by the development of surface oxides. Clustering between S-phase and one of the Cu-containing intermetallic domains was also evident.
Language eng
DOI 10.1016/j.corsci.2015.01.056
Field of Research 091207 Metals and Alloy Materials
030604 Electrochemistry
Socio Economic Objective 870302 Metals (e.g. Composites
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30072598

Document type: Journal Article
Collections: Institute for Frontier Materials
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