Characterization of MAO + Cu Composite Coatings on Aluminum Alloy
Source abstract
Abstract
Novel composite coatings were fabricated on 6061 aluminum alloy substrates by two steps combining micro-arc oxidation (MAO) plus electroless copper plating (Cu). Different MAO + Cu composite coatings were compared. Cu continuously and evenly covered an aluminum oxide surface during processing thus changing the surface topography. The adhesion of MAO + Cu composite coating was tested by the pull-out method. The best adhesion strength of the composite coating can reach industrial requirements. The effects of the composite coatings on friction were investigated using a ball-on-disc test method. It is found that copper in composite coatings plays a lubricating effect during the wear process under dry sliding. Furthermore, the mechanisms by which the observed advantages were produced are discussed.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Electrodeposition and Electroless Coatings · Magnesium Alloys: Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Funding
National Natural Science Foundation of China · Key research and development plan of shaanxi province industrial project
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