Metallic meta-biomaterials: A critical review of fatigue behaviors

Huang, Huiwen; Wang, Lizhen; Fan, Yubo

doi:10.1016/j.jsamd.2023.100585

Cited by 9 publications

(1 citation statement)

References 156 publications

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“…One way to reduce the Young’s modulus (apparent Young’s modulus) is to make the material porous [ 2 ]. However, porous materials cause significant degradation of their fatigue properties [ 3 ], limiting their use as implants. Porous materials have been clinically used for the outer surface of acetabular cups and the internal structure of spinal cages [ 4 ], but not in areas subjected to severe cyclic loading, such as artificial hip joints or bone plates for temporary fixation of fractures.…”

Section: Introductionmentioning

confidence: 99%

Effect of Partial Substitution of Zr for Ti Solvent on Young’s Modulus, Strength, and Biocompatibility in Beta Ti Alloy

Nomura,

Okada,

Manaka

et al. 2024

Materials

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In orthopedics and dentistry, there is an urgent need to obtain low-stiffness implants that suppress the stress shielding caused by the use of metallic implants. In this study, we aimed to fabricate alloys that can reduce the stiffness by increasing the strength while maintaining a low Young’s modulus based on the metastable β-Ti alloy. We designed alloys in which Ti was partially replaced by Zr based on the ISO-approved metastable β-Ti alloy Ti-15Mo-5Zr-3Al. All alloys prepared by arc melting and subsequent solution treatment showed a single β-phase solid solution, with no formation of the ω-phase. The alloys exhibited a low Young’s modulus equivalent to that of Ti-15Mo-5Zr-3Al and a high strength superior to that of Ti-15Mo-5Zr-3Al and Ti-6Al-4V. This strengthening was presumed to be due to solid-solution strengthening. The biocompatibility of the alloys was as good as or better than that of Ti-6Al-4V. These alloys have potential as metallic materials suitable for biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Effect of Partial Substitution of Zr for Ti Solvent on Young’s Modulus, Strength, and Biocompatibility in Beta Ti Alloy

Nomura,

Okada,

Manaka

et al. 2024

Materials

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Modeling Mechanical Properties of Titanium Scaffolds with Variable Microporosity

Slámečka,

Skalka,

Pokluda

2024

Adv Eng Mater

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The article introduces a two‐level finite element model for metallic scaffolds with porosity at both design and material levels. Despite several additive manufacturing methods producing structures with controlled hierarchical porosity, their functional properties remain largely unknown, hindering industrial utilization. This article examines how material microporosity affects the mechanical properties of a scaffold prepared by direct ink writing from pure titanium with dimensions typical for orthopedic implants. The study focuses on the compressive response of scaffolds with microporosity ranging from 0.05 to 0.65. The article demonstrates the practical application of the model by estimating the effective Young's modulus and the relative length of the fatigue crack initiation stage. Tensile plastic strains at critical sites exhibit a delocalization from around micropores followed by relocalization into thinning interpore walls with increasing microporosity, resulting in the highest fracture strain predicted for microporosities between 0.2 and 0.3. These strains enable the estimation of the length of the fatigue crack initiation stage, which proves to be very short for all microporosities. This emphasizes the crucial role of the crack growth stage in scaffold fatigue life and confirms the potential for additional experiments on scaffolds with microporosities exceeding 0.15 to enhance their fatigue resistance.

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Fatigue performance of TPMS-based AlSi10Mg architected cellular materials fabricated via hybrid and powder bed fusion methods

Singh,

Jaber,

Karathanasopoulos

2025

International Journal of Fatigue

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Metallic meta-biomaterials: A critical review of fatigue behaviors

Cited by 9 publications

References 156 publications

Effect of Partial Substitution of Zr for Ti Solvent on Young’s Modulus, Strength, and Biocompatibility in Beta Ti Alloy

Effect of Partial Substitution of Zr for Ti Solvent on Young’s Modulus, Strength, and Biocompatibility in Beta Ti Alloy

Modeling Mechanical Properties of Titanium Scaffolds with Variable Microporosity

Fatigue performance of TPMS-based AlSi10Mg architected cellular materials fabricated via hybrid and powder bed fusion methods

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