Design of the Ti-PCL interpenetrating phase composites with the minimal surface for property enhancement of orthopedic implants

IPCs (interpenetrating phase composites) offer a promising approach to enhancing the mechanical properties of orthopedic implants, including strength, fracture toughness, and the potential for incorporating complex functionalities. In this study, Ti6Al4V-PCL IPCs were fabricated by additive manufact...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-02, Vol.2713 (1), p.12047
Main Authors: Xie, Haiqiong, Chen, Junjie, Liu, Fei, Luo, Tao, Wang, Yiru, Tang, Yichuan
Format: Article
Language:English
Subjects:
Composite materials
Energy absorption
Failure modes
Fracture toughness
Mechanical properties
Minimal surfaces
Orthopaedic implants
Orthopedics
Scaffolds
Stress transfer
Surface chemistry
Surface structure
Surgical implants
Titanium base alloys
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Summary:IPCs (interpenetrating phase composites) offer a promising approach to enhancing the mechanical properties of orthopedic implants, including strength, fracture toughness, and the potential for incorporating complex functionalities. In this study, Ti6Al4V-PCL IPCs were fabricated by additive manufacturing and infiltrating melted PCL into a Ti6Al4V scaffold with a minimal surface structure. The IPCs introduction modifies the specimen’s failure mode and improves its energy absorption performance through enhanced two-phase interaction and effective stress transfer. Finite element simulations demonstrate increased stress diffusion, improved energy absorption mechanisms, and a prolonged stress plateau period. Among various scaffold types, the Gyroid IPCs exhibit superior mechanical properties, making them an excellent choice for enhancing the performance and functional development of degradable implantable stents.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2713/1/012047