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Interaction Between an Imidazolium Based Ionic Liquid and the AZ91D Magnesium Alloy
Author(s) -
Caporali S.,
Ghezzi F.,
Giorgetti A.,
Lavacchi A.,
Tolstogouzov A.,
Bardi U.
Publication year - 2007
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200600250
Subject(s) - materials science , corrosion , ionic liquid , alloy , lubricant , magnesium alloy , magnesium , adsorption , metallurgy , chemical engineering , composite material , organic chemistry , catalysis , chemistry , engineering
Knowledge about the corrosion mechanisms of magnesium alloy (AZ91D) in Ionic Liquids (IL) is of fundamental interest because of the absence of water in these environments which eliminates hydrogen corrosion. Furthermore IL show remarkable properties that make them ideal lubricant materials. The corrosion rate is very slow at room temperature, but becomes much faster at 200 °C. A interaction layer is formed and at least two different processes contribute to its formation: the corrosion of the metals constituting the alloy and the adsorption of IL degradation products.