|Title:||Study on the Characteristics of MAO/Polymer/Ni Three-Layer Composite Film formed on AZ31 Magnesium Alloy||Authors:||Lee, Hung-Bin
|Keywords:||AZ31 magnesium alloy;micro-arc oxidation;polymer layer;electroless nickel||Issue Date:||1-Nov-2021||Publisher:||ESG||Journal Volume:||16||Journal Issue:||11||Source:||INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE||Abstract:||
In this study, MAO/Polymer/Ni three-layer composite coating deposited on AZ 31 magnesium alloy was carried out by micro-arc oxidation, spinning coated and eletroless Ni processes. The characteristics of different coatings were analyzed by XRD, SEM, TEM and EDS. The MAO film subsequent sealing with polymer layer, the polymer agent will fill up the micro-arc holes of MAO film. Finally, an electroless nickel layer were deposited on polymer film to form a MAO/polymer/Ni composite coating. It can significantly decrease the i(corr) value from 39.6x10(-6) A/cm(2) to 7.2 x10(-6) A/cm(2). The MAO/polymer/Ni coating significantly enhanced the corrosion resistance of the AZ31 alloy due to the protection performance both of polymer and nickel layer.
|Appears in Collections:||光電與材料科技學系|
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