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<p>Laser melt deposition (LMD) is being used effectively by industry to produce parts that are difficult to manufacture using conventional methods, and metal powders are employed in the deposition of a layer of solidified metal during this process. However, improvements are needed for better surface and mechanical properties against wear and extensive loads. In this regard, electrospark deposition may offer a potential solution for better performances by micro-arc transfer of electrode material onto substrate surface. This study focuses on improving the surface and mechanical properties of AISI 316L stainless steel parts manufactured via LMD additive manufacturing using 30 and 60&#xa0;µm particles. Various structural and microstructural characterization techniques, i.e., optical microscopy, x-ray powder diffraction, and SEM with energy-dispersive x-ray spectroscopy have been used to characterize TiC- and WC-coated, uncoated, worn surfaces, along with the alloyed interlayer formed during the coating process. Wear and compression tests were employed to determine the effectiveness of the coating in terms of wear resistance and mechanical performance. This study provides a promising approach for enhancing the surface properties of LMD produced stainless steel parts using ESD coating with TiC and WC electrodes. The starting powder size used in LMD is found to be less significant for the wear and mechanical properties of ESD coated LMD produced parts.</p>

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Wear and Mechanical Properties of Laser Melting Deposited Stainless-Steel Parts Coated with WC and TiC Using Electrospark Deposition

  • 期刊论文

  • 发表日期：

    2025年2月6日

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  • Şükrü Talaş,
  • Magdalena Szklarska,
  • Denisa Strakova,
  • Meryem Akil

摘要

Laser melt deposition (LMD) is being used effectively by industry to produce parts that are difficult to manufacture using conventional methods, and metal powders are employed in the deposition of a layer of solidified metal during this process. However, improvements are needed for better surface and mechanical properties against wear and extensive loads. In this regard, electrospark deposition may offer a potential solution for better performances by micro-arc transfer of electrode material onto substrate surface. This study focuses on improving the surface and mechanical properties of AISI 316L stainless steel parts manufactured via LMD additive manufacturing using 30 and 60 µm particles. Various structural and microstructural characterization techniques, i.e., optical microscopy, x-ray powder diffraction, and SEM with energy-dispersive x-ray spectroscopy have been used to characterize TiC- and WC-coated, uncoated, worn surfaces, along with the alloyed interlayer formed during the coating process. Wear and compression tests were employed to determine the effectiveness of the coating in terms of wear resistance and mechanical performance. This study provides a promising approach for enhancing the surface properties of LMD produced stainless steel parts using ESD coating with TiC and WC electrodes. The starting powder size used in LMD is found to be less significant for the wear and mechanical properties of ESD coated LMD produced parts.