Additively manufactured heterogeneously porous metallic bone with biostructural functions and bone-like mechanical properties |
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Authors: | Pan Wang Xinwei Li Shumin Luo Mui Ling Sharon Nai Jun Ding Jun Wei |
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Abstract: | A compatible artificialbone impla nt requires large pores for enhanced nutrients transports,small pores to allow cell seeding and bone-like mechanical properties to avoid stress shielding.Herein,we report novel improved gyroid lattices with millimetre-scaled gyroid wall spacings and micrometre-scaled additional pores on the walls.Designs are successfully fabricated by electron beam melting using Ti-6 Al-4 V to high part qualities while exhibiting bone-like mechanical properties with a range of Young's modulus of 8-15 GPa and strength of 150-250 MPa.The improved design also eliminates brittle failure by allowing the structure to deform more stably. |
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Keywords: | Microlattice Metallic bone Implant Electron beam melting 3D printing |
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