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Technology of Electroless Ni-P Deposition on Magnesium Alloy

Lin An

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Abstract

AZ91D magnesium alloy samples were pretreated in zinc phosphating bath,and then plated with Ni-P deposits from the bath containing nickel sulphate.The morphology and microstructure of the electroless Ni-P coating was studied using SEM and XRD.The electroless Ni-P coating was compact and no obvious defects.The hardness values of the Ni-P coatings were about 350 HV and the phosphorus content of this coating was about 7.9%(mass).

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What this paper is about

AZ91D magnesium alloy samples were pretreated in zinc phosphating bath,and then plated with Ni-P deposits from the bath containing nickel sulphate.The morphology and microstructure of the electroless Ni-P coating was studied using SEM and XRD.The electroless Ni-P coating was compact and no obvious defects.The hardness values of the Ni-P coatings were about 350 HV and the phosphorus content of this coating was about 7.9%(mass).

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Available abstract

AZ91D magnesium alloy samples were pretreated in zinc phosphating bath,and then plated with Ni-P deposits from the bath containing nickel sulphate.The morphology and microstructure of the electroless Ni-P coating was studied using SEM and XRD.The electroless Ni-P coating was compact and no obvious defects.The hardness values of the Ni-P coatings were about 350 HV and the phosphorus content of this coating was about 7.9%(mass).

Key concepts: Coating, Metallurgy, Magnesium, Microstructure, Materials science, Magnesium alloy, Alloy, Zinc

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