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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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Kamiński, Janusz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2020Assessment of the surface roughness and susceptibility to corrosive processes of titanium-niobium and titanium-molybdenum archwires in laboratory tests
- 2020The influence of the glow discharge nitriding or oxynitriding process on the corrosion resistance of stainless steel orthodontic arch-wires
- 2020CORROSION RESISTANCE OF THE NANOSTRUCTURED X37CrMoV5-1 STEELcitations
- 2019Microstructural and corrosion resistance characterisation of NiTi shape memory alloy modified at low-temperature plasma with carbon coatings produced via RFCVD and IBAD methodscitations
- 2019Structure and properties of composite aluminum oxide layers produced on magnesium alloys using hybrid methodcitations
- 2018The Effect of Rhenium Addition on Microstructure and Corrosion Resistance of Inconel 718 Processed by Selective Laser Meltingcitations
- 2018Comparative assessment of the corrosion process of orthodontic archwires made of stainless steel, titanium–molybdenum and nickel–titanium alloyscitations
- 2017Odporność korozyjna warstw azotonawęglanych wytworzonych na stopie tytanu Ti6Al7Nbcitations
- 2017Corrosion resistance of NiTi shape memory alloy after hybrid surface treatment using low-temperature plasmacitations
- 2017Hybrid a-CNH+TiO2+TiN-type surface layers produced on NiTi shape memory alloy for cardiovascular applicationscitations
- 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
- 2016Experimental and ab-initio study of the Zr- and Cr-enriched aluminide layer produced on an IN 713C Inconel substrate by CVD; investigations of the layer morphology, structural stability, mechanical properties, and corrosion resistancecitations
- 2016Corrosion Resistance of the Inconel 740H Nickel Alloy after Pulse Plasma Nitriding at a Frequency of 10 kHzcitations
- 2016Corrosion Resistance of NiTi Shape Memory Alloy after Nitriding and Oxynitriding Processes under Glow Discharge Conditions for Medical Applicationscitations
- 2015Influence of the Al (Co, Ni) layer on the corrosion resistance of a cobalt based alloy (Mar-M-509®)citations
- 2011The effect of the diffusive, composite chromium nitride layers produced by a hybrid surface treatment on the corrosion behavior of AZ91D magnesium alloycitations
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article
The influence of the glow discharge nitriding or oxynitriding process on the corrosion resistance of stainless steel orthodontic arch-wires
Abstract
<p>The paper presents comparative results of corrosion resistance tests on AISI304 steel orthodontic arch-wires, before and after low temperature plasma nitriding or oxynitriding, carried out at cathodic potential. Oxynitriding processes were carried out at different concentrations of air added. Corrosion resistance tests of diffusion surface layers were carried out via electrochemical impedance spectroscopy and the po-tentiodynamic method in non-deaerated artificial saliva solution at 37 °C. The results were complemented with analysis of the alloy’s structure and surface topography. They showed an increase in corrosion resistance of AISI304 steel after glow-discharge nitriding and ox-ynitriding. In addition, due to the considerable roughness of the initial material, the surface layers produced are susceptible to pitting corro-sion. Increasing the concentration of air in a reactive atmosphere neg-atively affects the electrochemical homogeneity of the layer, which is not translated, due to the low concentration of chlorides in corrosion environment, to reducing the durability of the produced layers. This is evident in the values of breakdown potential (E<sub>np</sub>) initiating pitting corrosion, which are comparable in all cases and amount to approx. 820 mV ± 30 mV, slightly exceeding (by approx. 100 mV) the breakdown potential of the initial material. Only in the case of the layer with the maximum oxygen addition, the presence of a transpassive area is observed within which the oxynitrided layer is redeveloped, resulting in the observed exfoliation process of the layer.</p>