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<p>This study aims to deeply explore the influence of laser micro-texturing technology on the surface properties of metal materials. Taking 1045 steel as the research object, circular, square, and triangular micro-textures were successfully fabricated on the surface of its specimens by using a laser marking device. Through a comprehensive analysis of multi-dimensional properties of the material, such as surface hardness, roughness, wettability, wear morphology and friction coefficient, and a deep analysis of the wear mechanism, the study found that the laser micro-texturing technology significantly improves the surface hardness of 1045 steel specimens and enhances their hydrophobicity. Among them, the triangular micro-texture shows the most significant increase in hardness (from the original 187.38&#xa0;HV to 302.35&#xa0;HV, an increase of 61.5%), and the STS surface exhibits the most prominent hydrophobic performance. Dry friction experiments show that the surface micro-textures effectively reduce the abrasive wear on the material surface. Compared with the smooth surface, the surface wear depths of the triangular, circular and square micro-textures are reduced by 31.83, 27.06, and 28.03%, respectively. At the same time, the micro-textures change the surface roughness. The original roughness of SS is 0.02&#xa0;μm, and after processing, the roughness of TTS, RTS, and STS increases to 0.352&#xa0;μm, 0.45&#xa0;μm, and 0.457&#xa0;μm, respectively. This study provides important references for the application of laser micro-texturing technology in the field of optimizing the surface properties of metal materials.</p>

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Effect of Dimple Shape on the Tribological and Surface Properties of Laser-Textured 1045 Steel

  • 期刊论文

  • 发表日期：

    2025年7月30日

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  • Wenwen Zhang,
  • Mingyuan Zhang,
  • Yuanzhe Huang,
  • Xingliang Dong,
  • Li Zeng,
  • Shukun Cao

摘要

This study aims to deeply explore the influence of laser micro-texturing technology on the surface properties of metal materials. Taking 1045 steel as the research object, circular, square, and triangular micro-textures were successfully fabricated on the surface of its specimens by using a laser marking device. Through a comprehensive analysis of multi-dimensional properties of the material, such as surface hardness, roughness, wettability, wear morphology and friction coefficient, and a deep analysis of the wear mechanism, the study found that the laser micro-texturing technology significantly improves the surface hardness of 1045 steel specimens and enhances their hydrophobicity. Among them, the triangular micro-texture shows the most significant increase in hardness (from the original 187.38 HV to 302.35 HV, an increase of 61.5%), and the STS surface exhibits the most prominent hydrophobic performance. Dry friction experiments show that the surface micro-textures effectively reduce the abrasive wear on the material surface. Compared with the smooth surface, the surface wear depths of the triangular, circular and square micro-textures are reduced by 31.83, 27.06, and 28.03%, respectively. At the same time, the micro-textures change the surface roughness. The original roughness of SS is 0.02 μm, and after processing, the roughness of TTS, RTS, and STS increases to 0.352 μm, 0.45 μm, and 0.457 μm, respectively. This study provides important references for the application of laser micro-texturing technology in the field of optimizing the surface properties of metal materials.