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Title: Corrosion prevention of magnesium surfaces via surface conversion treatments using ionic liquids

A method for conversion coating a magnesium-containing surface, the method comprising contacting the magnesium-containing surface with an ionic liquid compound under conditions that result in decomposition of the ionic liquid compound to produce a conversion coated magnesium-containing surface having a substantially improved corrosion resistance relative to the magnesium-containing surface before said conversion coating. Also described are the resulting conversion-coated magnesium-containing surface, as well as mechanical components and devices containing the conversion-coated magnesium-containing surface.
Inventors:
;
Issue Date:
OSTI Identifier:
1321863
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
9,435,033
Application Number:
14/044,248
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2013 Oct 02
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

The effect of potential bias on the formation of ionic liquid generated surface films on Mg alloys
journal, February 2010

Electrochemical reactivity of trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate ionic liquid on glassy carbon and AZ31 magnesium alloy
journal, June 2011
  • Latham, Julie-Anne; Howlett, Patrick C.; MacFarlane, Douglas R.
  • Electrochimica Acta, Vol. 56, Issue 15, p. 5328-5334
  • DOI: 10.1016/j.electacta.2011.03.142

Tribological characteristics of aluminum alloys sliding against steel lubricated by ammonium and imidazolium ionic liquids
journal, June 2009

Synthesis and physical property characterisation of phosphonium ionic liquids based on P(O)2(OR)2 and P(O)2(R)2 anions with potential application for corrosion mitigation of magnesium alloys
journal, December 2008

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