University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Corrosion behaviour of a 2219 aluminium alloy treated with a chromate conversion coating exposed to a 3.5% NaCl solution

Grilli, R, Baker, MA, Castle, JE, Dunn, B and Watts, JF (2011) Corrosion behaviour of a 2219 aluminium alloy treated with a chromate conversion coating exposed to a 3.5% NaCl solution Corrosion Science, 53 (4). 1214 - 1223. ISSN 0010-938X

[img] Plain Text (licence)
licence.txt

Download (1kB)
[img]
Preview
PDF
Manuscript.pdf - Accepted Version
Available under License : See the attached licence file.

Download (2MB)

Abstract

This study investigates the formation of a chromate conversion coating at Al–Cu–Fe–Mn intermetallic sites of an Al2219 alloy and the corrosion initiation at these sites in a 3.5% NaCl solution, using SEM, AES and EDX. Changes in the surface chemistry were monitored after progressive exposures to the solution up to 42 h. The coating was found to be thinner and more defective on the intermetallic. Initially, Al is dissolved and Al(OH)3 deposited on and around the intermetallic. After 42 h of exposure, Al(OH)3, Fe and Mn oxides and small particles of elemental Cu are deposited as corrosion products.

Item Type: Article
Divisions: Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Depositing User: Symplectic Elements
Date Deposited: 16 Nov 2011 12:08
Last Modified: 09 Jun 2014 13:23
URI: http://epubs.surrey.ac.uk/id/eprint/7526

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800