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<p>Ni-ZrO<sub>2</sub> nanocomposite coatings were successfully fabricated using pulsed electrodeposition (PED), magnetic field-assisted pulsed electrodeposition (MPED), and ultrasonic–magnetic coupled pulsed electrodeposition (CPED). Comparative analysis revealed that the CPED-derived Ni-ZrO<sub>2</sub> composite coating exhibited a refined microstructure with enhanced densification, achieving surface roughness values of Ra = 85&#xa0;nm and Rq = 119&#xa0;nm. Furthermore, the CPED method significantly increased the mass fraction of ZrO<sub>2</sub> nanoparticles within the composite coating compared to both PED and MPED processes. Microhardness testing demonstrated that the Ni-ZrO<sub>2</sub> nanocomposite coatings substantially outperformed pure Ni coatings produced by PED and MPED, with the CPED-deposited coating exhibiting the highest hardness of 407&#xa0;HV. Tribological evaluations indicated that the CPED-synthesized Ni-ZrO<sub>2</sub> nanocomposite coating displayed minimal mass loss and superior wear resistance. Electrochemical characterization through polarization curves and electrochemical impedance spectroscopy (EIS) confirmed the exceptional corrosion resistance of the CPED-prepared Ni-ZrO<sub>2</sub> coating in a 5-wt.% NaCl solution.</p>

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Study on Properties of Ni-ZrO2 Nanocomposite Coatings Prepared by Pulsed Electrocasting Under the Coupling Effect of Ultrasonic and Magnetic Field

  • 期刊论文

  • 发表日期：

    2025年7月2日

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  • H. B. Yan,
  • Yanjin Shen,
  • Zicheng Zhao,
  • Rong Cai,
  • Qiaochu Chen,
  • G. F. Dong

摘要

Ni-ZrO2 nanocomposite coatings were successfully fabricated using pulsed electrodeposition (PED), magnetic field-assisted pulsed electrodeposition (MPED), and ultrasonic–magnetic coupled pulsed electrodeposition (CPED). Comparative analysis revealed that the CPED-derived Ni-ZrO2 composite coating exhibited a refined microstructure with enhanced densification, achieving surface roughness values of Ra = 85 nm and Rq = 119 nm. Furthermore, the CPED method significantly increased the mass fraction of ZrO2 nanoparticles within the composite coating compared to both PED and MPED processes. Microhardness testing demonstrated that the Ni-ZrO2 nanocomposite coatings substantially outperformed pure Ni coatings produced by PED and MPED, with the CPED-deposited coating exhibiting the highest hardness of 407 HV. Tribological evaluations indicated that the CPED-synthesized Ni-ZrO2 nanocomposite coating displayed minimal mass loss and superior wear resistance. Electrochemical characterization through polarization curves and electrochemical impedance spectroscopy (EIS) confirmed the exceptional corrosion resistance of the CPED-prepared Ni-ZrO2 coating in a 5-wt.% NaCl solution.