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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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Cox, Sophie C.
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024A genetic algorithm optimization framework for the characterization of hyper-viscoelastic materials
- 2023Tailoring absorptivity of highly reflective Ag powders by pulsed-direct current magnetron sputtering for additive manufacturing processescitations
- 2023Tailoring absorptivity of highly reflective Ag powders by pulsed-direct current magnetron sputtering for additive manufacturing processescitations
- 2022Surface Free Energy Dominates the Biological Interactions of Postprocessed Additively Manufactured Ti-6Al-4Vcitations
- 2022Controlled Release of Epigenetically-Enhanced Extracellular Vesicles from a GelMA/Nanoclay Composite Hydrogel to Promote Bone Repaircitations
- 2022The influence of thermal oxidation on the microstructure, fatigue properties, tribological and in vitro behaviour of laser powder bed fusion manufactured Ti-34 Nb-13Ta-5Zr-0.2O alloycitations
- 2022Development, characterisation, and modelling of processability of nitinol stents using laser powder bed fusioncitations
- 2022Photocurable antimicrobial silk-based hydrogels for corneal repaircitations
- 2021Surface finish of additively manufactured metalscitations
- 2021Biofilm viability checkercitations
- 2020Optimizing the antimicrobial performance of metallic glass composites through surface texturingcitations
- 2020Selective laser melting of Ti-6Al-4V: the impact of post-processing on the tensile, fatigue and biological properties for medical implant applicationscitations
- 2020Selective laser melting of ti-6al-4vcitations
- 2019Dynamic viscoelastic characterisation of human osteochondral tissuecitations
- 2018Formulation and viscoelasticity of mineralised hydrogels for use in bone-cartilage interfacial reconstructioncitations
- 2018The role of subchondral bone, and its histomorphology, on the dynamic viscoelasticity of cartilage, bone and osteochondral corescitations
- 2018Tailoring selective laser melting process for titanium drug-delivering implants with releasing micro-channelscitations
- 2016Adding functionality with additive manufacturing : fabrication of titanium-based antibiotic eluting implantscitations
Places of action
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article
The influence of thermal oxidation on the microstructure, fatigue properties, tribological and in vitro behaviour of laser powder bed fusion manufactured Ti-34 Nb-13Ta-5Zr-0.2O alloy
Abstract
<p>This study innovatively investigates the feasibility of thermal oxidation (TO) for improving the wear and fatigue properties of TNT5Zr-0.2O alloys manufactured by laser powder bed fusion (LPBF). Static chemical etching (CE) as a pre-treatment for TO successfully removed the LPBF induced surface adhered powders. A mixture of rutile, Nb<sub>2</sub>O<sub>5</sub>, Ta<sub>2</sub>O<sub>5</sub>, and ZrO phases were formed as an oxide layer after TO. It can be found a better wear resistance was retained in this β-titanium alloy after TO, as demonstrated by the wear scar features with ploughing grooves changing into brittle peeling of oxides. Plain fatigue strength of CE treated alloy (150 MPa) was 1.5 times higher than the value of CE+TO treated alloy (60 MPa), as a result of multiple premature fatigue cracks possibly developing in the compounds region after TO. <i>In vitro</i> biocompatibility results showed no significant differences in metabolic activity of pre-osteoblasts seeded on the treated surfaces. In addition, early and late mineralisation assays revealed similar levels of 14-day ALP activity, and 28-day mineral deposits formed on the two biocompatible TNT5Zr-0.2O alloy surfaces. Overall, though the oxide layer is corrosion-resistant in the aggressive environment (3 M HCl solution), showing a potential application of TO in additively manufactured titanium medical devices. However, TO should be cautiously exploited due to the deterioration of mechanical properties.</p>