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An investigation of a phosphinate-based ionic liquid for corrosion protection of magnesium alloy AZ31

journal contribution
posted on 01.01.2007, 00:00 authored by Patrick HowlettPatrick Howlett, S Zhang, D MacFarlane, Maria ForsythMaria Forsyth
This work reports a preliminary exploration of the potential of the ionic liquid trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate (P6,6,6,14M3PPh) for use as a conversion coating agent for corrosion protection of magnesium alloy AZ31. Results obtained for the as received IL did not indicate any measureable improvement in protection. However, when the IL was allowed to reach equilibrium/saturation with moisture from the atmosphere, treatment with this ‘wet’ solution resulted in a substantial improvement in corrosion resistance. Preliminary electrochemical, optical, and spectroscopic characterization of the film will be presented along with a possible mechanism for film formation.

History

Journal

Australian journal of chemistry

Volume

60

Issue

1

Pagination

43 - 46

Publisher

CSIRO

Location

Melbourne, Vic.

ISSN

0004-9425

eISSN

1445-0038

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2007, CSIRO