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Exploring corrosion protection of Mg via ionic liquid pretreatment

Birbilis, Nick, Howlett, Patrick C., MacFarlane, Douglas R. and Forsyth, Maria 2007, Exploring corrosion protection of Mg via ionic liquid pretreatment, Surface and coatings technology, vol. 201, no. 8, pp. 4496-4504.

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Title Exploring corrosion protection of Mg via ionic liquid pretreatment
Author(s) Birbilis, Nick
Howlett, Patrick C.
MacFarlane, Douglas R.
Forsyth, Maria
Journal name Surface and coatings technology
Volume number 201
Issue number 8
Start page 4496
End page 4504
Publisher Elsevier Science SA
Place of publication Amsterdam, The Netherlands
Publication date 2007-01-15
ISSN 0257-8972
Keyword(s) magnesium
corrosion
ionic liquid
inhibition
droplet-cell
coating
Summary We present the development of a 10–100 nanometer thick surface film upon pure Mg on exposure to an ionic liquid (IL) based on the bis(trifluoromethanesulfonyl)amide (TFSA) anion. This film formation is the result of the oxidative reactivity of the metal in the IL, with the subsequent effect of ultimately protecting the underlying metal from corrosion in aqueous chloride containing solution. Film formation was studied in the IL using an electrochemical droplet cell. It was seen that this film is adherent and subsequently facilitates appreciable protection against corrosion as judged by subsequent electrochemical testing in the form of potentiodynamic polarization and impedance spectroscopy, along with direct observation. The physical film morphology was studied by electron microscopy and focused ion beam.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030069

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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