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<p>To improve the surface wear resistance and service life of YG8-cemented carbide tools, this study combined laser etching and PVD coating techniques to enhance the hardness and wear resistance of the tool surface. A comprehensive analysis of surface morphology and chemical composition changes before and after wear, as well as at the wear edges, was conducted using scanning electron microscopy and energy-dispersive spectroscopy (SEM–EDS), revealing the intrinsic mechanisms of wear resistance and hardness improvement. Microhardness test results showed that the hybrid-treated samples exhibited a significant increase in hardness, with an improvement of 73.94% compared to the original samples. Correlation analysis of chemical elements showed that the NiTiW multicomponent alloy coating had the strongest correlation with hardness, with correlation coefficients of 0.7123 and 0.6547, making it a key factor in improving hardness. The results of the ball-on-disk wear tests showed that the NiTiW multicomponent alloy coating significantly improved the hardness and wear resistance of the YG8-cemented carbide, particularly under the condition of five laser etching passes at a scanning speed of 500&#xa0;mm/s, where its wear resistance increased by 59.22%. The results of this study demonstrate that the combination of laser etching and PVD coating technology plays a crucial role in enhancing the surface properties of YG8-cemented carbide, providing new directions for further optimization of material surface treatments.</p>

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A novel synergistic approach for wear performance improvement of YG8-cemented carbide tools

  • 期刊论文

  • 发表日期：

    2025年12月8日

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  • Lingtao Weng,
  • He Zhang,
  • Kexin Guo,
  • Zhoujie Zhao,
  • Zhen Yang,
  • Yufan Zhao,
  • Hengning Hu,
  • Yanling Tian

摘要

To improve the surface wear resistance and service life of YG8-cemented carbide tools, this study combined laser etching and PVD coating techniques to enhance the hardness and wear resistance of the tool surface. A comprehensive analysis of surface morphology and chemical composition changes before and after wear, as well as at the wear edges, was conducted using scanning electron microscopy and energy-dispersive spectroscopy (SEM–EDS), revealing the intrinsic mechanisms of wear resistance and hardness improvement. Microhardness test results showed that the hybrid-treated samples exhibited a significant increase in hardness, with an improvement of 73.94% compared to the original samples. Correlation analysis of chemical elements showed that the NiTiW multicomponent alloy coating had the strongest correlation with hardness, with correlation coefficients of 0.7123 and 0.6547, making it a key factor in improving hardness. The results of the ball-on-disk wear tests showed that the NiTiW multicomponent alloy coating significantly improved the hardness and wear resistance of the YG8-cemented carbide, particularly under the condition of five laser etching passes at a scanning speed of 500 mm/s, where its wear resistance increased by 59.22%. The results of this study demonstrate that the combination of laser etching and PVD coating technology plays a crucial role in enhancing the surface properties of YG8-cemented carbide, providing new directions for further optimization of material surface treatments.