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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

Works referenced 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