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The incorporation of nano-SiCNano SiC particles into coatings can significantly improve their hardnessHardness and wear resistanceWear Resistance. This study focuses on the preparation of Ni–Co–B–SiC composite coatings by electrodepositionElectrodeposition in a sulphate bath, using sodium dodecyl sulphate as a surfactant. The influence of the concentration of nano-SiCNano SiC particles in the electrolyte on the morphologyMorphologies and hardnessHardness of Ni–Co–B coatings was studied, and their wear resistanceWear Resistance was tested. The results show that compared with the Ni–Co–B coating, the Ni–Co–B–SiC composite coating has more refined grains and significantly increased hardnessHardness (up to 1023 HV) when the SiC concentration in the electrolyte is 1–5 g/L. Additionally, the introduction of SiC reduced the friction coefficient of the coatings, and the wear volume decreased by 59% at room temperatureTemperature and 30% at high temperatureHigh temperature, effectively improving the wear resistanceWear Resistance of the Ni–Co–B coatings.

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Preparation Techniques and Mechanical Properties of Ni–Co–B–SiC Coatings for Wear-Resistant Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Hao Hu,
  • Li Li,
  • Pengyu Tian,
  • Huamei Duan,
  • Dengfu Chen

摘要

The incorporation of nano-SiCNano SiC particles into coatings can significantly improve their hardnessHardness and wear resistanceWear Resistance. This study focuses on the preparation of Ni–Co–B–SiC composite coatings by electrodepositionElectrodeposition in a sulphate bath, using sodium dodecyl sulphate as a surfactant. The influence of the concentration of nano-SiCNano SiC particles in the electrolyte on the morphologyMorphologies and hardnessHardness of Ni–Co–B coatings was studied, and their wear resistanceWear Resistance was tested. The results show that compared with the Ni–Co–B coating, the Ni–Co–B–SiC composite coating has more refined grains and significantly increased hardnessHardness (up to 1023 HV) when the SiC concentration in the electrolyte is 1–5 g/L. Additionally, the introduction of SiC reduced the friction coefficient of the coatings, and the wear volume decreased by 59% at room temperatureTemperature and 30% at high temperatureHigh temperature, effectively improving the wear resistanceWear Resistance of the Ni–Co–B coatings.