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<p>This study evaluates the mechanical and tribological properties of SS316L fabricated via direct metal laser sintering (DMLS) with ultrasonic assistance versus traditional wrought SS316L. The DMLS process, incorporating ultrasonic vibrations at 40&#xa0;kHz and 2.5&#xa0;µm amplitude, resulted in improved microstructural characteristics, with DMLS samples showing higher hardness and better tensile properties. Tribological tests revealed that DMLS samples had a 44% reduction in wear rate and a 25% improvement in the friction coefficient compared to the wrought alloy. These enhancements highlight the effectiveness of ultrasonic-assisted DMLS in optimizing SS316L for biomedical applications.</p>

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Comparative Study of Mechanical and Tribological Behavior of Additively Manufactured and Wrought Alloy of SS316L

  • 期刊论文

  • 发表日期：

    2025年1月9日

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  • M. Lakshmanan,
  • J. Santhana Krishnan,
  • S. Vignesh,
  • M. Ramar

摘要

This study evaluates the mechanical and tribological properties of SS316L fabricated via direct metal laser sintering (DMLS) with ultrasonic assistance versus traditional wrought SS316L. The DMLS process, incorporating ultrasonic vibrations at 40 kHz and 2.5 µm amplitude, resulted in improved microstructural characteristics, with DMLS samples showing higher hardness and better tensile properties. Tribological tests revealed that DMLS samples had a 44% reduction in wear rate and a 25% improvement in the friction coefficient compared to the wrought alloy. These enhancements highlight the effectiveness of ultrasonic-assisted DMLS in optimizing SS316L for biomedical applications.