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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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Tarnowski, Michał
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2021Shaping the structure and properties of titanium and Ti6Al7Nb titanium alloy in low-temperature plasma nitriding processescitations
- 2021Formation of Nitrogen Doped Titanium Dioxide Surface Layer on NiTi Shape Memory Alloycitations
- 2021Plasma modification of carbon coating produced by RF CVD on oxidized NiTi shape memory alloy under glow-discharge conditionscitations
- 2021The Microstructure and Properties of Carbon Thin Films on Nanobainitic Steelcitations
- 2020Influence of nitrided and nitrocarburised layers on the functional properties of nitrogen-doped soft carbon-based coatings deposited on 316L steel under DC glow-discharge conditionscitations
- 2020Effect of nitriding conditions of Ti6Al7Nb on microstructure of TiN surface layercitations
- 2020TEM investigations of active screen plasma nitrided Ti6Al4V and Ti6Al7Nb alloyscitations
- 2020Effect of Nitrided and Nitrocarburised Austenite on Pitting and Crevice Corrosion Resistance of 316 LVM Steel Implantscitations
- 2019TEM studies of low temperature cathode-plasma nitrided Ti6Al7Nb alloycitations
- 2018Structure and hemocompatibility of nanocrystalline titanium nitride produced under glow-discharge conditionscitations
- 2018Structure and physico-mechanical properties of low temperature plasma treated electrospun nanofibrous scaffolds examined with atomic force microscopycitations
- 2018Modification of titanium and its alloys implants by low temperature surface plasma treatments for cardiovascular applicationscitations
- 2018Structure and properties of composite surface layers produced on NiTi shape memory alloy by a hybrid methodcitations
- 2017Properties of Ti-6Al-7Nb titanium alloynitrocarburized under glow discharge conditions
- 2017Odporność korozyjna warstw azotonawęglanych wytworzonych na stopie tytanu Ti6Al7Nbcitations
- 2017Corrosion resistance of NiTi shape memory alloy after hybrid surface treatment using low-temperature plasmacitations
- 2017Influence of amorphous carbon layers on tribological properties of polyetheretherketone composite in contactwith nitrided layer produced on Ti6Al4V titanium alloycitations
- 2016Cathodic Cage Plasma Nitriding of Ti6Al4V Alloycitations
- 2016Wpływ topografii powierzchni na odporność korozyjną stopu z pamięcią kształtu NiTi po procesie azotowania jarzeniowego w niskotemperaturowej plazmie / Influence of surface topography on the corrosion resistance of NiTi shape memory alloy nitrided at low-temperature plasma process
- 2015The importance of surface topography for the biological properties of nitrided diffusion layers Produced on Ti6Al4V titanium alloycitations
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article
TEM studies of low temperature cathode-plasma nitrided Ti6Al7Nb alloy
Abstract
The Ti6Al7Nb alloy has been elaborated as a substitute for Ti6Al4V alloy especially for applications leading to its direct contact with human body fluids as the former totally eliminates the carcinogenic vanadium present in the latter. The Ti6Al7Nb presents so much needed high specific strength, but its aluminum addition is also harmful and will have to be taken care of. Nitriding could improve wear resistance of these alloys and form a diffusion barrier at least at first stage of their use. However, knowledge of phase composition of near surface area of Ti6Al7Nb after such treatment is still limited. Therefore, these experiments were planned to describe the effect of the plasma nitriding of Ti6Al7Nb alloy performed at 680 °C and 740 °C for 6 h. The transmission electron microscopy observations revealed that the plasma nitriding of this alloy performed at both of specified temperatures allows to produce a zone consisting of only three layers i.e. δ-TiN, α″-Ti martensite and (α-Ti + Ti3Al) phases. The only difference between both treatments was that plasma nitriding at 740 °C caused a porosity of upper part of the δ-TiN layer, while the one formed at 680 °C was only slightly thinner, but fully dense. Penetration of the nitrogen into sub-surface areas during plasma nitriding of Ti6Al7Nb alloy pushes down both the aluminum and niobium deep into the substrate freeing the near surface β-Ti from alloying additions. It allows to transform the latter into α″-Ti martensite during cooling down. The last layer in the nitrided zone was found to be formed by a mixture of α-Ti and Ti3Al phases.