| People | Locations | Statistics |
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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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Krawczyńska, Agnieszka
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2020In vitro evaluation of degradable electrospun polylactic acid/bioactive calcium phosphate ormoglass scaffoldscitations
- 20203D DIC-assisted residual stress measurement in 316 LVM steel processed by HE and HPTcitations
- 2019New approach to amorphization of alloys with low glass forming ability via selective laser meltingcitations
- 2019Mechanical properties and corrosion resistance of hydrostatically extruded 316 LVM stainless steel after low-temperature plasma nitridingcitations
- 2019Analysis of the microstructure of an AZ31/AA1050/AA2519 laminate produced using the explosive-welding methodcitations
- 2018Microstructural characterization and residual stress distribution in a nanostructured austenitic stainless steelcitations
- 2018Formation of the Nitrided Layers on an Austenitic Stainless Steel with Different Grain Structurescitations
- 2017New synthesis route to decorate Li 4 Ti 5 O 12 grains with GO flakescitations
- 2017Mechanical properties and corrosion resistance of ultrafine grained austenitic stainless steel processed by hydrostatic extrusioncitations
- 2017Microstructure and mechanical properties investigation of CP titanium processed by selective laser melting (SLM)citations
- 2017Analysis of microstructural aspects of a hip stem failure made of the REX 734 stainless steelcitations
- 2017The effect of current types on the microstructure and corrosion properties of Ni/NANOAl2O3 composite coatings
- 2016STEM study of Li4Ti5O12 anode material modified with Ag nanoparticlescitations
- 2014Strength of nanostructured austenitic steel 316LN at cryogenic temperaturescitations
- 2013Strain relaxation and grain growth in 316LVM stainless steel annealed under pressure
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article
The effect of current types on the microstructure and corrosion properties of Ni/NANOAl2O3 composite coatings
Abstract
Nickel matrix composite coatings with a ceramic disperse phase have been widely investigated due to their enhanced properties, such as higher hardness and wear resistance in comparison to pure nickel. This paper describes the research on nickel and nickel-alumina coatings. The coatings were obtained from a Watts bath with the presence of nickel grain-growth inhibitors by DC (direct current), PC (pulse current) and PRC (pulsed reverse current) plating. The study includes the composite coatings of microcrystalline and nanocrystalline Ni matrix and nanometric Al2O3 particles. In order to ensure uniform co-embedding of the disperse phase particles with a nickel matrix and producing a stable suspension, mechanical agitation was also used. It was proved in our previous investigations that mechanical agitation is the best way of embedding nano-alumina particles in a nickel matrix. The effect of the electroplating techniques on the microstructure (SEM - scanning electron microscopy, STEM - scanning transmission electron microscopy, XRD - X-ray diffraction, surface profile) of Ni and Ni/Al2O3 composite coatings was investigated. In order to evaluate the corrosion resistance of the produced coatings, the corrosion studies were carried out by electrochemical impedance spectroscopy and the potentiodynamic method in a 0.5-M NaCl solution. Bode diagrams obtained by impedance spectroscopy method were established. The equivalent electric circuit and its parameters were determined to interpret impedance spectra. The corrosion current and corrosion potential were determined. Investigations of the corrosion damage to the produced surface layers were performed by scanning microscope techniques. The completed studies have shown that the type of current significantly affects the structure of the nickel and composite coatings, as well as their corrosion properties.