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<p>The wear of implants is one of the predominant causes of implant failures. The formed wear debris contributes to toxicity, hypersensitivity, allergic reactions, and aseptic loosening of implants. Texturing on the implant is a proficient approach to surface modification techniques to enhance tribological attributes. Laser Texturing is the most efficient technique due to its potential to produce tailored topography, morphology, roughness, wettability, cell adhesion, and proliferation. In this research, a Nd: YAG 30&#xa0;W nanosecond laser is used to investigate the influence of laser-textured grooves on surface roughness, hardness, wear rate, and coefficient of friction of SS 316&#xa0;L. FESEM and EDS with elemental mapping were employed to explore the surface topography and elemental composition of wear-tested samples. Laser-textured samples reported a 32.93% reduction in coefficient of friction and a 52.53% wear rate reduction as compared with non-textured samples during a pin-on-disc tribometer experimentation. EDS results clearly show the textured wear tested samples with higher oxygen content as compared to the non-textured wear sample. The textured samples 1 and 4 prominently reported chromium oxide and Fe oxide, respectively. The significant wear reduction attained is due to wear debris entrapping topography and an oxide layer as a protective barrier. The results are validated satisfactorily with the confirmation experiment. The capability of generating tailored roughness, hardness, wear rate, and Coefficient of Friction on biomaterial surfaces will help to develop wear-resistant implant surfaces.</p>

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Nanosecond Laser Surface Texturing for Superior Wear Resistance of SS 316L Biomaterial

  • 期刊论文

  • 发表日期：

    2025年11月28日

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  • Neelesh Sirdeshmukh,
  • Ganesh Dongre,
  • Aarya Kurlekar,
  • Akshaan Kaware,
  • Piyush Kawade,
  • Tanmay Kotgire

摘要

The wear of implants is one of the predominant causes of implant failures. The formed wear debris contributes to toxicity, hypersensitivity, allergic reactions, and aseptic loosening of implants. Texturing on the implant is a proficient approach to surface modification techniques to enhance tribological attributes. Laser Texturing is the most efficient technique due to its potential to produce tailored topography, morphology, roughness, wettability, cell adhesion, and proliferation. In this research, a Nd: YAG 30 W nanosecond laser is used to investigate the influence of laser-textured grooves on surface roughness, hardness, wear rate, and coefficient of friction of SS 316 L. FESEM and EDS with elemental mapping were employed to explore the surface topography and elemental composition of wear-tested samples. Laser-textured samples reported a 32.93% reduction in coefficient of friction and a 52.53% wear rate reduction as compared with non-textured samples during a pin-on-disc tribometer experimentation. EDS results clearly show the textured wear tested samples with higher oxygen content as compared to the non-textured wear sample. The textured samples 1 and 4 prominently reported chromium oxide and Fe oxide, respectively. The significant wear reduction attained is due to wear debris entrapping topography and an oxide layer as a protective barrier. The results are validated satisfactorily with the confirmation experiment. The capability of generating tailored roughness, hardness, wear rate, and Coefficient of Friction on biomaterial surfaces will help to develop wear-resistant implant surfaces.