Abstract
Abstract To remanufacture damaged hard chromium plating devices, Ni-Co-P alloy brush coating is developed by electro brush plating technique. Surface morphology, element composition and phase structure are separately investigated by Scanning Electron Microscopy, Energy Spectrometer and X-ray Diffraction. The results show that Ni-Co-P alloy coating gets typical ‘packet shape’ morphology and amorphous phase structure, with 9.9wt% P element. The corrosion resistance of Ni-Co-P alloy coating is also studied by electrochemical experiments and immersion tests. The results show that its corrosion resistance is superior to that of hard chromium plating, can be applied to the remanufacture of damaged hard chromium plating equipment.
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