Improved Wear and Corrosion Resistance of Ni-P Electroless Deposited Coating with RE Added

Jing Yao Zhang; Zhou Yu; Dang Sheng Xiong

doi:10.4028/www.scientific.net/AMR.750-752.1982

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Improved Wear and Corrosion Resistance of Ni-P Electroless Deposited Coating with RE Added

Abstract:

Effect of three kinds of RE ion (Y³⁺, Nd³⁺, La³⁺), which added separately in the Ni-P electroless deposition bath, on coating micro-structure and property such as microhardness, wear and corrosion resistance was investigated. Optimization of organization structure and property of coating attributed to RE-added was analysed by means of ICPM, XRD, SEM and micro-sclerometer, wear testing machine. The results show that the coating has still amorphous structure but higher of phosphorus content due to RE, which added in the bath can make coating grains smaller and more compact. At the same time, improved microhardness, wear and corrosion resistance of coating are observed with RE-added properly. The effect of Y³⁺ is most remarkable among three RE ions. When the concentration of Y³⁺ in the bath is 0.04g.L^-1, the microhardness, wear loss and corrosion rate in 10% H₂SO₄ solution of coating is 606HV, 4.9572mg and 0.0064mg.cm^-2.h^-1, respectively.

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Advanced Materials Research (Volumes 750-752)

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1982-1986

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https://doi.org/10.4028/www.scientific.net/AMR.750-752.1982

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August 2013

Authors:

Jing Yao Zhang, Zhou Yu, Dang Sheng Xiong

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Corrosion Resistance, Ni-P Electroless Deposited Coating, RE Ion, Wear Resistance

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