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Investigation of the corrosion resistance of alkaline electroless nickel plating on aluminum alloy

Liqun Ma

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Abstract

Electroless nickel plating on the aluminum alloy in an Alkaline plating bath was investigated.The morphology,the phosphorus content and microstructure of the electroless nickel coatings obtained were studied by SEM,EDS,XRD and the corrosion resistance of that were studied by electrokinetic polarization curve and erosion corrosion in w(NaOH)=4% NaOH solution.Results show that electroless nickel films are homogeneous and compact,high phosphorus content and non-crystalline coatings.The films effectively improve corrosion resistance of aluminum alloy in w(NaOH)=4% NaOH solution.

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Electroless nickel plating on the aluminum alloy in an Alkaline plating bath was investigated.The morphology,the phosphorus content and microstructure of the electroless nickel coatings obtained were studied by SEM,EDS,XRD and the corrosion resistance of that were studied by electrokinetic polarization curve and erosion corrosion in w(NaOH)=4% NaOH solution.Results show that electroless nickel films are homogeneous and compact,high phosphorus content and non-crystalline coatings.The films effectively improve corrosion resistance of aluminum alloy in w(NaOH)=4% NaOH solution.

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Available abstract

Electroless nickel plating on the aluminum alloy in an Alkaline plating bath was investigated.The morphology,the phosphorus content and microstructure of the electroless nickel coatings obtained were studied by SEM,EDS,XRD and the corrosion resistance of that were studied by electrokinetic polarization curve and erosion corrosion in w(NaOH)=4% NaOH solution.Results show that electroless nickel films are homogeneous and compact,high phosphorus content and non-crystalline coatings.The films effectively improve corrosion resistance of aluminum alloy in w(NaOH)=4% NaOH solution.

Key concepts: Corrosion, Materials science, Metallurgy, Alloy, Nickel, Electroless nickel plating, Microstructure, Plating (geology)

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