| 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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Zdunek, Joanna
Warsaw University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2023Comparison of the performance properties of commercially produced roller cone bit coatingscitations
- 2021Influence of an aluminizing process on the microstructure and tensile strength of the nickel superalloy IN 718 produced by the Selective Laser Meltingcitations
- 2021Microstructure and Thermoelectric Properties of Doped FeSi2 with Addition of B4C Nanoparticlescitations
- 2021Influence of Hydrostatic Extrusion on the Mechanical Properties of the Model Al-Mg Alloyscitations
- 2020Internal nanocrystalline structure and stiffness alterations of electrospun polycaprolactone-based mats after six months of in vitro degradation. An atomic force microscopy assaycitations
- 2019Structural and electrical studies on Ti/Al-based Au-free ohmic contact metallization for AlGaN/GaN HEMTscitations
- 2019The influence of Mg addition and hydrostatic extrusion HE on the repassivation ability of pure Al, AlMg1 and AlMg3 model alloys in 3.5 wt-% NaClcitations
- 2019Microstructure and thermoelectric properties of p and n type doped β-FeSi2 fabricated by mechanical alloying and pulse plasma sinteringcitations
- 2019New approach to amorphization of alloys with low glass forming ability via selective laser meltingcitations
- 2019Analysis of residual stress in 1.4539 austenitic steel joints welded with TIG method
- 2019Texture, residual stresses and mechanical properties analysis in the commercial 1.4462 duplex stainless steel subjected to hydrostatic extrusioncitations
- 2019The influence of combined hydrostatic extrusion and rolling on the microstructure, texture and mechanical properties of Al-Li alloyscitations
- 2018The crossed – lamellar structure of mollusk shells as biocomposite material
- 2018Formation of the Nitrided Layers on an Austenitic Stainless Steel with Different Grain Structurescitations
- 2018The Influence of Selective Laser Melting (SLM) Process Parameters on In-Vitro Cell Responsecitations
- 2018Effect of structure on corrosion resistance of Mg-Zn-Ca alloy
- 2017Microstructure and strain-stress analysis of the dynamic strain aging in inconel 625 at high temperature citations
- 2017Microstructure and mechanical properties investigation of CP titanium processed by selective laser melting (SLM)citations
- 2017Influence of hydrostatic extrusion process on the microstructure and texture of polycrystalline nickelcitations
- 2017The effect of current types on the microstructure and corrosion properties of Ni/NANOAl2O3 composite coatings
- 2017Heterogeneity of deformation in duplex stainless steel subjected to hydrostatic extrusion
- 2016Synthesis of the RGO/Al2O3 core-shell nanocomposite flakes and characterization of their unique electrostatic properties using zeta potential measurementscitations
- 2016Evolution of microstructure and precipitates in 2xxx aluminum alloy after severe plastic deformationcitations
- 2016Influence of the corrosive environment on the Portevin–Le Chatelier plastic instability phenomenon in Al–1Mg and Al–3Mg model alloys
- 2016Microwave Plasma Chemical Vapor Deposition of SbxOy/C negative electrodes and their compatibility with lithium and sodium Hückel salts - Based, tailored electrolytescitations
- 2016Microstructure evolution and texture development in a Cu-8.5%at. Al material subjected to hydrostatic extrusioncitations
- 2016Investigation of the degradation mechanism of catalytic wires during oxidation of ammonia processcitations
- 2015Influence of the Al (Co, Ni) layer on the corrosion resistance of a cobalt based alloy (Mar-M-509®)citations
- 2015Microstructure and Texture of Hydrostatic Extrusion Deformed Ni Single Crystals and Polycrystalcitations
- 2014Electrochemical and cellular behavior of ultrafine-grained titanium in vitrocitations
- 2014Influence of casting method and heat treatment for corrosion resistance of magnesium alloy AZ91D
- 2013Investigation of degradation mechanism of palladium-nickel wires during oxidation of ammoniacitations
- 2013Analysis of two catalytic systems PtRhPd-PdAu and PtRh-PdAu after long-term exploitation
- 2006Influence of severe plastic deformation on the PLC effect and mechanical properties in Al 5XXX alloy
Places of action
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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.