Electrochemical corrosion performance and microhardness of the electrodeposited Ni-CeO 2 and Ni-ZrO 2 nanocomposite coatings on the AA2219 aluminum alloy

Key Points

• The aim is to evaluate the electrochemical corrosion performance and microhardness of nanocomposite coatings on aluminum alloy AA2219.
• Electrodeposition of Ni-CeO2 and Ni-ZrO2 nanocomposite coatings on AA2219
• Analysis of hardness and corrosion resistance
• Characterization of microstructure and mechanical properties.
• Coatings exhibit significantly higher microhardness compared to uncoated AA2219
• Enhanced corrosion resistance through barrier and passive film mechanisms
• Uniform nanoparticle dispersion leads to improved mechanical properties.