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Stainless steel 316L (SS316L) is commonly used in biomedical implants due to its mechanical strength and corrosion resistance, but its biocompatibility issues and potential for stress shielding remain concerns. Incorporating hydroxyapatite (HA) improves bioactivity, making SS316L/HA composites promising for orthopedic applications. This review examines fabrication methods like powder metallurgy, spark plasma sintering (SPS), and selective laser melting (SLM), emphasizing the effects of HA content and sintering parameters on composite properties. While HA enhances bioactivity, challenges such as decomposition and microcracking persist. Optimizing sintering parameters is crucial to overcoming these issues and achieving composites with superior mechanical performance and long-term stability for biomedical use.

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Microstructural and Mechanical Insights into SS316L-5Wt.% Hydroxyapatite Composites Fabricated via Microwave Sintering

  • 会议论文

  • 发表日期：

    2025年

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  • Pravesh Kumar,
  • Roop Lal,
  • R. C. Singh

摘要

Stainless steel 316L (SS316L) is commonly used in biomedical implants due to its mechanical strength and corrosion resistance, but its biocompatibility issues and potential for stress shielding remain concerns. Incorporating hydroxyapatite (HA) improves bioactivity, making SS316L/HA composites promising for orthopedic applications. This review examines fabrication methods like powder metallurgy, spark plasma sintering (SPS), and selective laser melting (SLM), emphasizing the effects of HA content and sintering parameters on composite properties. While HA enhances bioactivity, challenges such as decomposition and microcracking persist. Optimizing sintering parameters is crucial to overcoming these issues and achieving composites with superior mechanical performance and long-term stability for biomedical use.