University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Influence of molybdate species on the tartaric acid/sulphuric acid anodic films grown on AA2024 T3 aerospace alloy

Garcia-Rubo, M., Ocon, P., Climent-Font, A., Smith, Richard, Curioni, M., Thompson, G.E, Skeldon, P., Lavia, A. and Garcia, L. (2009) Influence of molybdate species on the tartaric acid/sulphuric acid anodic films grown on AA2024 T3 aerospace alloy Influence of molybdate species on the tartaric acid/sulphuric acid anodic films grown on AA2024 T3 aerospace alloy, 51 (9). pp. 2034-2042.

Full text not available from this repository.

Abstract

AA2024 T3 alloy specimens have been anodised in tartaric acid/sulphuric media and tartaric acid/sulphuric media containing sodium molybdate; molybdate species were added to the anodising bath to enhance further the protection provided by the porous anodic film developed over the macroscopic alloy surface. Morphological characterisation of the anodic films formed in both electrolytes was undertaken using scanning electron and transmission electron microscopies; the chemical compositions of the films were determined by Rutherford backscattering spectroscopy that was complemented by elemental depth profiling using rf-glow discharge optical emission spectrometry. The electrochemical behaviour was evaluated using potentiodynamic polarisations and electrochemical impedance spectroscopy; the corrosion performance was examined after salt spray testing. The porous anodic film morphology was little influenced by the addition of molybdate salt, although thinner films were generated in its presence. Chemical composition of the anodic film was roughly similar; however, addition of sodium molybdate in the anodizing bath resulted in residues of molybdate species in the porous skeleton and improved corrosion resistance measured by electrochemical techniques that was confirmed by salt spray testing.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Garcia-Rubo, M.
Ocon, P.
Climent-Font, A.
Smith, Richardr.w.smith@surrey.ac.uk
Curioni, M.
Thompson, G.E
Skeldon, P.
Lavia, A.
Garcia, L.
Date : 3 June 2009
DOI : 10.1016/j.corsci.2009.05.034
Copyright Disclaimer : Copyright © 2009 Elsevier Ltd. All rights reserved
Uncontrolled Keywords : A. Aluminium; A. Acid solutions; A. Alloy; B. EIS; C. Anodic films
Depositing User : James Marshall
Date Deposited : 20 Mar 2020 15:56
Last Modified : 20 Mar 2020 15:56
URI: http://epubs.surrey.ac.uk/id/eprint/854062

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