Study on Properties of Electroless Ni-P Plating on 6063A Aluminum Alloy

Abstract:

In order to improve 6063A aluminium surface condition, electroless plating technology was used to obtain Ni-P coating on 6063A aluminium surface, the properties of Ni-P coating were investigated by means of scanning electron microscopy (SEM), X-ray diffractometer, microhardness teste, coating adhesion nick meter and electrochemical workstations. The result indicate that, the Ni-P coating shows a amorphous structure with compact structure, the hardness is about 4 times of substrate; the combination of the coating and the substrate is good, the strength for 42.25 N; after electroless plating, self-corrosion potential shift for positive direction for 0.55 V, the self-corrosion current density lower two orders of magnitude compare to the substrate, polarization resistance significantly increased, which shows that after electroless Ni-P plating, the corrosion resistance increase apparently.

• Periodical: Advanced Materials Research (Volume 337)
• Pages: 50-53
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.337.50
• Online since: September 2011
• Authors: Xing Wu Qiu, Yun Peng Zhang, Chun Ge Liu
• Keywords: 6063a Aluminum Alloy, Bonding Strength, Electroless Ni-P Plating, Hardness, Polarization Curve, Topography

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