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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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Pichon, Luc
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023Effect of plasma immersion ion implantation on wear behavior of Ti-6Al-4V alloycitations
- 2023The effect of prior ultrasonic shot peening treatment on the low-temperature plasma nitriding of a metastable β-Ti alloy
- 2022Surface engineering of titanium alloy TiAl6V4 by multi-interstitial diffusion using plasma processingcitations
- 2022Surface engineering of titanium alloy TiAl6V4 by multi-interstitial diffusion using plasma processingcitations
- 2022Relation between Mechanical Hardening and Nitrogen Profile of PBII Nitrided Titanium Alloycitations
- 2022Structural characterization of iron oxide grown on 18% Ni-Co-Mo-Ti ferrous base alloy aged under superheated steam atmospherecitations
- 2021Depth profiling characterization of the nitride layers on gas nitrided commercially pure titaniumcitations
- 2019Effect of immersion time at the stainless steel 304L/NaCl (0.01 M) interfacecitations
- 2019Low temperature nitriding behaviour of Ni3Al-like γ′ precipitates in nickel-based superalloyscitations
- 2018The Influence of Plasma-Based Nitriding and Oxidizing Treatments on the Mechanical and Corrosion Properties of CoCrMo Biomedical Alloycitations
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article
Relation between Mechanical Hardening and Nitrogen Profile of PBII Nitrided Titanium Alloy
Abstract
Surface treatments of Ti-6Al-4V alloys are of utmost importance for biomedical applications since they allow for tribological gain. Here, Ti-6Al-4V disks have been PBII nitrided at either 500, 600, 700 and 800 °C. A set of techniques (XRD, SEM-EDS, EBSD and GDOES) was used to characterize the surface microstructural and chemical changes. Nanoindentation was used to assess the induced changes in terms of mechanical properties. Two types of nitrided domains are revealed. Starting from the surface, a nitride bilayer composed of δ-TiN/ϵ-Ti2N with enhanced surface resistance is supported by an α-Ti(N) solid solution formed at depth. Hardness values peak at 12-14 GPa at the surface, which is almost twice as large as the bulk value (about 7 GPa). For the moderate temperatures used here, a deep (10-15 µm) and strong hardness (14 GPa) enhancement together with a smooth gradient can be achieved.