Thin Solid Films, Vol.457, No.2, 307-312, 2004
Adhesion and corrosion studies of a lithium based conversion coating film on the 2024 aluminum alloy
AA2024-T3-aluminum alloy surfaces were coated using non-chromate and chromate conversion coatings. All coatings were painted with the 10P4-2-primer epoxy resin. Independent on the film formation process, films passed on the substrate/conversion coating wet tape adhesion test. However, only the chromate conversion coating passed on the conversion coating/primer epoxy resin adhesion test. Electrochemical corrosion measurements showed that non-chromate conversion coated surfaces present lower corrosion current density, bigger polarization resistance and less negative corrosion potential than chromate conversion coated surfaces. (C) 2003 Elsevier B.V. All rights reserved.