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ELECTRODEPOSITION AND CORROSION RESISTANCE OF Ni–W–Al2O3 NANOCOMPOSITE COATINGS

Author

Listed:
  • QIONGYU ZHOU

    (School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China‡Institute of Applied Physics, Jiangxi Academy of Sciences, Shangfang Road 108, Nanchang, Jiangxi Province 330029, P. R. China)

  • WEI XIE

    (School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China)

  • YADONG ZHANG

    (School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China)

  • MINQI SHENG

    (#x2020;School of Iron and Steel, Soochow University, Suzhou, Jiangsu 215123, P. R. China)

  • ANWEI HU

    (School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China)

  • XIANG CHENG

    (School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China)

  • LU ZHANG

    (School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China)

Abstract

Ni–W–Al2O3 nanocomposite coatings were deposited on the low-carbon steel substrates from aqueous sulfate-citrate electrolytes containing various amounts of Al3O2 nanoparticles. Their surface morphology, element and phase composition were carried out using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). The corrosion resistance was carried out using the potentiodynamic polarization (Tafel) and electrochemical impedance spectroscopy (EIS). It is shown that incorporation of Al2O3 nano-particles into amorphous Ni–W coating would transform its structure to being crystalline and influence its properties. The hardness sharply increases and corrosion resistance performance significantly decreases even after few Al2O3 nanoparticles (2 g/L) were added into the bath. In addition, with increase of Al2O3 addition in the bath, a tendency of increase in hardness and corrosion resistance performance is observed.

Suggested Citation

  • Qiongyu Zhou & Wei Xie & Yadong Zhang & Minqi Sheng & Anwei Hu & Xiang Cheng & Lu Zhang, 2017. "ELECTRODEPOSITION AND CORROSION RESISTANCE OF Ni–W–Al2O3 NANOCOMPOSITE COATINGS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(Supp01), pages 1-9, November.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:supp01:n:s0218625x18500154
    DOI: 10.1142/S0218625X18500154
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