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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Li, Sheng
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023The effect of thermal post-processing treatment on laser powder bed fusion processed NiMnSn-based alloy for magnetic refrigerationcitations
- 2023Laser powder bed fusion of the Ni-Mn-Sn Heusler alloy for magnetic refrigeration applicationscitations
- 2022High-density direct laser deposition (DLD) of CM247LC alloycitations
- 2022A Narrowband 3-D Printed Invar Spherical Dual-Mode Filter With High Thermal Stability for OMUXscitations
- 2022Additive manufacturing of novel hybrid monolithic ceramic substratescitations
- 2022Thermal stability analysis of 3D printed resonators using novel materialscitations
- 2021Effect of the preparation techniques of photopolymerizable ceramic slurry and printing parameters on the accuracy of 3D printed lattice structurescitations
- 2021Additive manufacturing of bio-inspired multi-scale hierarchically strengthened lattice structurescitations
- 2018Polymeric coatings with reduced ice adhesion
- 2018Suspended droplet alloyingcitations
- 2016Selective Laser Melting of TiNi Auxetic Structures
- 2016The development of TiNi-based negative Poisson's ratio structure using selective laser meltingcitations
Places of action
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article
Additive manufacturing of bio-inspired multi-scale hierarchically strengthened lattice structures
Abstract
The next-generation medical implants require locally customised biomechanical behaviour to echo the properties of hard tissues, making additive manufacturing (AM) an ideal route due to its superior manufacturing flexibility. AM of titanium alloys with designed porosity is the mainstream for artificial implants, which, however, hardly balance the strength-modulus combination. Here a martensitic TiNi biomaterial with low modulus and asymmetric mechanical behaviour that mimics human bones is explored. TiNi functionally graded lattice structure (FGLS) is bio-inspired by bone architecture and processed by AM. Bio-inspired FGLS shows much higher strength and ductility than the uniform lattice despite having an equivalent structural porosity. Post-process heat-treatments alter the microstructure and result in a multi-scale hierarchically strengthened behaviour in FGLS, offering one of the highest specific strengths (about 70 kN·m/kg) among porous biometals, while keeping a low specific modulus and reasonable ductility. Besides, the deformation behaviour of FGLS is in-situ monitored, which, together with microscopic observations, reveal a multi-scale failure mechanism. The bio-inspired FGLS shows better biomechanical compatibility than the uniform lattice, including density, tension/compression asymmetry, modulus, and strength. The findings highlight the ability of AM in tailoring a modulus-strength-ductility trade-off through bio-inspired multi-scale hierarchical structure design.