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Friction Stir ProcessingFriction stir processing (FSP) has316L stainless steel been investigatedBiomedical application as a means of improving mechanical and tribological properties such as hardnessHardness, corrosion resistanceCorrosion resistance, and wearWear resistance. FSP was successfully performed at high and low temperatures on 316L plates by adjusting RPM and tool engagement. HardnessHardness and corrosion resistanceCorrosion resistance testing was performed, along with Electron Backscatter Diffraction (EBSDElectron Backscatter Diffraction (EBSD)) to analyze grain refinement and grain boundary misalignment. The hardnessHardness of the treated 316L increased by 22.5%, and while the corrosion rate decreased, this change was not statistically significant. Nevertheless, these results demonstrate the potential of FSP to enhance the in-vivo performance of biomedical implants. Corrosion testing in bovine serum found that 316L’s performance in the human body can be further optimized.

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Friction Stir Processing of 316L Stainless Steel for Improvements in Biomedical Application

  • 会议论文

  • 发表日期：

    2025年

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  • Kaleb Bates,
  • Isaac Andorful,
  • Robert Hovanski,
  • Sophie Wartena,
  • Quentin Allen

摘要

Friction Stir ProcessingFriction stir processing (FSP) has316L stainless steel been investigatedBiomedical application as a means of improving mechanical and tribological properties such as hardnessHardness, corrosion resistanceCorrosion resistance, and wearWear resistance. FSP was successfully performed at high and low temperatures on 316L plates by adjusting RPM and tool engagement. HardnessHardness and corrosion resistanceCorrosion resistance testing was performed, along with Electron Backscatter Diffraction (EBSDElectron Backscatter Diffraction (EBSD)) to analyze grain refinement and grain boundary misalignment. The hardnessHardness of the treated 316L increased by 22.5%, and while the corrosion rate decreased, this change was not statistically significant. Nevertheless, these results demonstrate the potential of FSP to enhance the in-vivo performance of biomedical implants. Corrosion testing in bovine serum found that 316L’s performance in the human body can be further optimized.