2011•Rejiagong gongyiRequires access

Study on the Process of Electroless Plating Nickel for 2024 Aluminum Alloy

Xiaogang Li

Abstract

The bath composition of electroless plating Ni-P coating for 2024 aluminum alloy was studied using orthogonal experiment.The surface morphology was observed by scanning electron microscopy(SEM),and the corrosion resistance of Ni-P films was investigated by means of electrochemical impedance spectroscopy(EIS).The results show a compact and homogeneous coating with a good adhesion can be obtained by the bath.The microhardness of Ni-P coatings is 8.5 times greater than that of aluminum alloy,and the corrosion resistance of Al aluminum alloy is improved.Therefore,the Ni-P coating has a better prospect for application.

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Key concepts: Materials science, Dielectric spectroscopy, Alloy, Scanning electron microscope, Corrosion, Metallurgy, Indentation hardness, Coating