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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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Rizzi, Paola
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Electrochemical Surface Nanostructuring of Ti<sub>47</sub>Cu<sub>38</sub>Fe<sub>2.5</sub>Zr<sub>7.5</sub>Sn<sub>2</sub>Si<sub>1</sub>Ag<sub>2</sub> Metallic Glass for Improved Pitting Corrosion Resistancecitations
- 2024Surface modification of Ti40Cu40Zr11Fe3Sn3Ag3 amorphous alloy for enhanced biocompatibility in implant applications
- 2024Carbon Footprint of a Windshield Reinforcement Component for a Sport Utility Vehicle
- 2024High pressure hydrogen compression exploiting Ti1.1(Cr,Mn,V)2 and Ti1.1(Cr,Mn,V,Fe)2 alloyscitations
- 2024Control of magnetic vortex states in FeGa microdisks: Experiments and micromagneticscitations
- 2023Control of magnetic vortex states in FeGa microdisks : Experiments and micromagneticscitations
- 2021Structural, wetting and magnetic properties of sputtered fe70pd30 thin film with nanostructured surface induced by dealloying processcitations
- 2021Solid-State Hydrogen Storage Systems and the Relevance of a Gender Perspectivecitations
- 2020A comparative study of the influence of the deposition technique (electrodeposition versus sputtering) on the properties of nanostructured Fe70Pd30 filmscitations
- 2020Unraveling the properties of sharply defined submicron scale FeCu and FePd magnetic structures fabricated by electrodeposition onto electron-beam-lithographed substratescitations
- 2020Structural and magnetic properties of FePd thin film synthesized by electrodeposition methodcitations
- 2020A comparative study of the influence of the deposition technique (electrodeposition versus sputtering) on the properties of nanostructured Fe70 Pd30 filmscitations
- 2018Reliability of portable X-ray Fluorescence for the chemical characterisation of ancient corroded copper tin alloyscitations
- 2017Tailoring magnetic properties of multicomponent layered structure via current annealing in FePd thin filmscitations
- 2015A comparison of de-alloying crystalline and amorphous multicomponent Au alloyscitations
- 2013Ductility and toughness of cold-rolled metallic glassescitations
- 2013Effects of Chemical Composition on Nanocrystallization Kinetics, Microstructure and Magnetic Properties of Finemet-Type Amorphous Alloyscitations
- 2011Constrained deformation of an Al based amorphous alloy by cold rolling
- 2007Thermal stability and hardness of Mg-Cu-Au-Y amorphous alloyscitations
- 2007On the glass transition in metallic melts
Places of action
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article
Electrochemical Surface Nanostructuring of Ti<sub>47</sub>Cu<sub>38</sub>Fe<sub>2.5</sub>Zr<sub>7.5</sub>Sn<sub>2</sub>Si<sub>1</sub>Ag<sub>2</sub> Metallic Glass for Improved Pitting Corrosion Resistance
Abstract
<jats:p>Ti‐based bulk metallic glasses are envisioned for human implant applications. Yet, while their elevated Cu content is essential for a high glass‐forming ability, it poses biocompatibility issues, necessitating a reduction in near‐surface regions. To address this, surface treatments that simultaneously generate protective and bioactive states, based on nanostructured Ti and Zr‐oxide layers are proposed. An electrochemical pseudo‐dealloying process using the bulk glass‐forming Ti<jats:sub>47</jats:sub>Cu<jats:sub>38</jats:sub>Fe<jats:sub>2.5</jats:sub>Zr<jats:sub>7.5</jats:sub>Sn<jats:sub>2</jats:sub>Si<jats:sub>1</jats:sub>Ag<jats:sub>2</jats:sub> alloy is defined. Melt‐spun ribbons are immersed in hot concentrated nitric acid solution, monitoring the anodic polarization behavior. From the current density transient measurements, together with surface studies (field‐emission scanning electron microscopy, transmission electron microscopy, and Auger electron spectroscopy), the surface reactions are described. This nanostructuring process is divided into three stages: passivation, Cu dissolution, and slow oxide growth, leading to homogenous nanoporous and ligament structures. By tuning the applied potential, the pore and ligament sizes, and thickness values are adjusted. According to X‐ray photoelectron spectroscopy, these nanoporous structures are Ti and Zr‐oxides rich in hydrous and nonhydrous states. In a simulated physiological solution, for those treated glassy alloy samples, complete suppression of chloride‐induced pitting corrosion in the anodic regime of water stability is achieved. This high corrosion resistance is similar to that of clinically used cp‐Ti.</jats:p>