File(s) under permanent embargo

The influence of rare earth mercaptoacetate on the initiation of corrosion on AA2024-T3 Part II: The influence of intermetallic compositions within heavily attacked sites

journal contribution
posted on 01.01.2015, 00:00 authored by Rainier Catubig, A E Hughes, I S Cole, F F Chen, C M MacRae, N C Wilson, A M Glenn, Bruce HintonBruce Hinton, Maria ForsythMaria Forsyth
Localised corrosion is typical on AA2024-T3 due to intermetallic particles embedded in the alloy. The effect of intermetallic compositions on corrosion are not yet fully understood. EPMA data on AA2024-T3 surfaces before and after a 16. min immersion, analyses the influence of intermetallic clustering on the severity attack at local sites. While sites with a high number of domains and a large S-phase surface area typically lead to severe attack, maximising these features did not always lead to severe corrosion attack. Cerium or praseodymium mercaptoacetate inhibited corrosion ring formation. The common trends observed from such attack sites was also discussed.

History

Journal

Corrosion science

Pagination

1 - 11

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0010-938X

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2015, Elsevier