Effect of corrosion inhibiting compounds on the corrosion behaviour of pure magnesium and the magnesium alloys EV31A, WE43B and ZE41A

Akif Soltan; Matthew S. Dargusch; Zhiming Shi; Fiona Jones; Barry Wood; Darren Gerrard; Andrej Atrens

Journal of Magnesium and Alloys (Mar 2021)

Effect of corrosion inhibiting compounds on the corrosion behaviour of pure magnesium and the magnesium alloys EV31A, WE43B and ZE41A

Akif Soltan,
Matthew S. Dargusch,
Zhiming Shi,
Fiona Jones,
Barry Wood,
Darren Gerrard,
Andrej Atrens

Affiliations

Akif Soltan: School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Qld 4072, Australia; Defence Materials Technology Centre, DMTC Limited, Level 2, 24 Wakefield Street, Hawthorn, Vic 3122, Australia
Matthew S. Dargusch: School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Qld 4072, Australia; Defence Materials Technology Centre, DMTC Limited, Level 2, 24 Wakefield Street, Hawthorn, Vic 3122, Australia
Zhiming Shi: School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Qld 4072, Australia; Defence Materials Technology Centre, DMTC Limited, Level 2, 24 Wakefield Street, Hawthorn, Vic 3122, Australia
Fiona Jones: UQ Materials Performance, The University of Queensland, Brisbane, Qld 4072, Australia
Barry Wood: Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, Qld 4072, Australia
Darren Gerrard: Defence Science and Technology Group, 506 Lorimer Street, Fishermans Bend, Vic 3207, Australia
Andrej Atrens: School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Qld 4072, Australia; Corresponding author.

Journal volume & issue: Vol. 9, no. 2
pp. 432 – 455

Abstract

Read online

This paper studied corrosion of pure Mg and the Mg alloys EV31A, WE43B, ZE41A, coated with commercial corrosion inhibiting compounds (CICs) (LPS 3, LPS2, AMLGuard, Ardrox 3961) immersed in 3.5 wt% (0.6 M) NaCl solution saturated with Mg(OH)2. All four CICs reduced corrosion rates. LPS 3 resulted in zero corrosion rates and 100% inhibition in most cases. LPS 2 and AMLGuard had comparable inhibition efficiencies, whilst Ardrox 3961 had the lowest inhibition efficiency. Reduction in corrosion rates was tentatively attributed to barrier films formed by chemical adsorption for LPS 3 and AMLGuard, and by physical adsorption for LPS2 and Ardrox 3961.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

About the journal

Abstract

Keywords