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<p>To improve the wear and corrosion resistance of 45# steel, WC/Ni60 and Cu/WC/Ni60 composite coatings were applied to the steel surface via induction cladding technology. WC, which is the coating material, notably enhances the wear and corrosion resistance, whereas the addition of Cu influences the microhardness, wear performance and corrosion resistance. To optimise the Cu and Ni60/WC composite powder ratio, the coating microstructure and mechanical properties were analysed by scanning electron microscopy, microhardness testing, wear testing and electrochemical analysis. Results indicate that WC improved the microhardness and corrosion resistance, with an optimal microhardness and abrasion resistance observed at a WC fraction of 35 wt.%. Cu addition further enhanced the microhardness, wear and corrosion resistance. The comparison shows that the 10 wt.% Cu/15 wt.% WC/Ni60 coating provides superior wear and corrosion resistance, whereas the 5 wt.% Cu/15 wt.% WC/Ni60 coating offers improved microhardness compared to the substrate.</p>

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Microstructural, Mechanical, and Corrosion Behavior of Cu-Reinforced WC/Ni60 Composite Coatings on 45# Steel Prepared by Induction Cladding

  • 期刊论文

  • 发表日期：

    2025年6月26日

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  • Bin Zhong,
  • Zhao Ma,
  • Pan Wang,
  • Zhengyang Yu,
  • Chao Niu

摘要

To improve the wear and corrosion resistance of 45# steel, WC/Ni60 and Cu/WC/Ni60 composite coatings were applied to the steel surface via induction cladding technology. WC, which is the coating material, notably enhances the wear and corrosion resistance, whereas the addition of Cu influences the microhardness, wear performance and corrosion resistance. To optimise the Cu and Ni60/WC composite powder ratio, the coating microstructure and mechanical properties were analysed by scanning electron microscopy, microhardness testing, wear testing and electrochemical analysis. Results indicate that WC improved the microhardness and corrosion resistance, with an optimal microhardness and abrasion resistance observed at a WC fraction of 35 wt.%. Cu addition further enhanced the microhardness, wear and corrosion resistance. The comparison shows that the 10 wt.% Cu/15 wt.% WC/Ni60 coating provides superior wear and corrosion resistance, whereas the 5 wt.% Cu/15 wt.% WC/Ni60 coating offers improved microhardness compared to the substrate.