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<p>This work examines the wear and tensile behavior of additive manufactured maraging steel, fabricated through the selective laser melting (SLM) technique. Distinct SLM process parameters were selected for the production of maraging steel, including laser power, scan speed, layer thickness, and hatch distance to determine their influence on wear and tensile performance. The results showed that higher laser power improved material fusion, enhancing wear resistance up to an optimal point, beyond which excessive power led to defects like cracks, increasing wear. Similarly, scan speed and layer thickness significantly influenced the material’s microstructure, with lower speeds and thinner layers providing better bonding and reduced porosity. Increased load and sliding distance led to higher wear rates due to intensified plastic deformation and abrasive wear mechanisms. Laser power of 270 W resulted in the highest tensile strength of 1156.67&#xa0;MPa due to improved layer bonding. SEM analysis of the worn surfaces revealed the presence of abrasive grooves, delamination, and third-body wear debris contributing to material degradation.</p>

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Wear Behavior of Additive Manufactured Maraging Steel Using Selective Laser Melting Technique

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • V. P. Pradeep,
  • K. Ravi Kumar

摘要

This work examines the wear and tensile behavior of additive manufactured maraging steel, fabricated through the selective laser melting (SLM) technique. Distinct SLM process parameters were selected for the production of maraging steel, including laser power, scan speed, layer thickness, and hatch distance to determine their influence on wear and tensile performance. The results showed that higher laser power improved material fusion, enhancing wear resistance up to an optimal point, beyond which excessive power led to defects like cracks, increasing wear. Similarly, scan speed and layer thickness significantly influenced the material’s microstructure, with lower speeds and thinner layers providing better bonding and reduced porosity. Increased load and sliding distance led to higher wear rates due to intensified plastic deformation and abrasive wear mechanisms. Laser power of 270 W resulted in the highest tensile strength of 1156.67 MPa due to improved layer bonding. SEM analysis of the worn surfaces revealed the presence of abrasive grooves, delamination, and third-body wear debris contributing to material degradation.