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<p>This work involved fabricating Ni–Cu alloy and Ni–Cu–(2, 4&#xa0;g/L) SiC composite coatings using the pulse electrodeposition method. An investigation was conducted to examine the effect of SiC nanoparticles on microstructural, mechanical, and corrosion characteristics of the Ni–Cu alloy. A decrease in intensity was observed in the XRD peaks associated with the Ni–Cu(<i>α</i>) solid solution when SiC nanoparticles were added. In comparison with the Ni–Cu coating, the grain sizes for composite coatings with SiC (4&#xa0;g/L) and SiC (2&#xa0;g/L) are reduced by 62 and 82 pct, respectively. Composite coatings exhibit rougher surfaces than alloys, according to the roughness analysis. Comparing the composite samples and the alloy samples, the nanoindentation measurements indicate that the composite samples possess higher Young's modulus and nanohardness values. According to the corrosion experiments, adding SiC nanoparticles to the matrix reduced the percentage of metal surface area exposed, thereby improving corrosion resistance.</p>

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Design and Investigation of NiCu–SiC Novel Composite Coatings for Mechanical and Anti-corrosion Applications

  • 期刊论文

  • 发表日期：

    2025年3月24日

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  • Arsalan Nazari,
  • Rashid Khattinejad,
  • Gholam Reza Khayati

摘要

This work involved fabricating Ni–Cu alloy and Ni–Cu–(2, 4 g/L) SiC composite coatings using the pulse electrodeposition method. An investigation was conducted to examine the effect of SiC nanoparticles on microstructural, mechanical, and corrosion characteristics of the Ni–Cu alloy. A decrease in intensity was observed in the XRD peaks associated with the Ni–Cu(α) solid solution when SiC nanoparticles were added. In comparison with the Ni–Cu coating, the grain sizes for composite coatings with SiC (4 g/L) and SiC (2 g/L) are reduced by 62 and 82 pct, respectively. Composite coatings exhibit rougher surfaces than alloys, according to the roughness analysis. Comparing the composite samples and the alloy samples, the nanoindentation measurements indicate that the composite samples possess higher Young's modulus and nanohardness values. According to the corrosion experiments, adding SiC nanoparticles to the matrix reduced the percentage of metal surface area exposed, thereby improving corrosion resistance.