| 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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Roche, Virginie
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2024The study of passive film's resistivity distribution to crystalline Fe-based pseudo high entropy alloys: The use of measurement model and Cole-Cole regressioncitations
- 2024The study of passive film's resistivity distribution to crystalline Fe-based pseudo high entropy alloys: The use of measurement model and Cole-Cole regressioncitations
- 2024Severe plastic deformation for producing superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary review
- 2024Design, structure/microstructure evolution, mechanical and corrosion properties of newly-developed pseudo-high entropy amorphous alloys
- 2024Passive film's resistivity distribution of crystalline Fe-based pseudo high entropy alloys
- 2024Fe–Ni-based alloys as highly active and low-cost oxygen evolution reaction catalyst in alkaline mediacitations
- 2024Severe plastic deformation for producing Superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary reviewcitations
- 2023Newly-developed pseudo-high entropy amorphous alloys: Structure/microstructure evolution, mechanical and corrosion properties.citations
- 2023Newly-developed pseudo-high entropy amorphous alloys: Structure/microstructure evolution, mechanical and corrosion properties.citations
- 2023Passive film characterization of a novel FeCrMoNbB alloy by combined EIS and XPS
- 2023Erosion-corrosion properties of two novel Fe-based multicomponent alloys for marine applications
- 2022Passive film formation on the new biocompatible non-equiatomicTi 21 Nb 24 Mo 23 Hf 17 Ta 15 high entropy alloy before and after resting in simulated body fluidcitations
- 2022Passive film formation on the new biocompatible non-equiatomicTi 21 Nb 24 Mo 23 Hf 17 Ta 15 high entropy alloy before and after resting in simulated body fluidcitations
- 2022Novel FeCrMoNbB alloy for marine applications: corrosion behavior
- 2022Novel FeCrMoNbB alloy for marine applications: corrosion behavior
- 2021On the effect of plastic pre-straining on the corrosion behaviour of a duplex stainless steel and how the emergence of slip steps affects the hydrogen evolution reaction kineticscitations
- 2021Hydrogen storage in MgAlTiFeNi high entropy alloycitations
- 2021Hydrogen storage in MgAlTiFeNi high entropy alloycitations
- 2021Corrosion behavior and bioactivity of equimolar high entropy alloy TiNbZrHfTa : growth of nanotubes oxides
- 2021Corrosion behaviour of biomedical β-titanium alloys with the surface-modified by chemical etching and electrochemical methodscitations
- 2021Hot Deformation Behavior of a Beta Metastable TMZF Alloy: Microstructural and Constitutive Phenomenological Analysiscitations
- 2021Assessment of anodization conditions and annealing temperature on the microstructure, elastic modulus, and wettability of β-Ti40Nb alloycitations
- 2021Corrosion resistance investigation of surface modified biocompatible β-titanium alloys
- 2020Cathodic protection modeling of a covered and uncovered steel immerse in seawater: Corrosion characterizations
- 2019On the intrinsic passivating ability of Belite-Ye’elimite-Ferrite towards carbon steel: A straightforward comparison with ordinary Portland cementcitations
- 2017Sulfide stress corrosion study of a super martensitic stainless steel in H 2 S sour environments: Metallic sulfides formation and hydrogen embrittlementcitations
- 2017Sulfide stress corrosion study of a super martensitic stainless steel in H<font size=-1><sub>2</sub></font>S sour environments: Metallic sulfides formation and hydrogen embrittlementcitations
- 2017Synergy between molybdenum and nitrogen on the pitting corrosion and passive film resistance of austenitic stainless steels as a pH-dependent effectcitations
- 2017Effect of cold rolling on the structure and hydrogen properties of AZ91 and AM60D magnesium alloys subjected to ECAPcitations
- 2017Molybdenum effect on the Sulfide Stress Corrosion of a super martensitic stainless steel in sour environment highlighted by Electrochemical Impedance Spectroscopycitations
- 2014Corrosion properties of Fe–Cr–Nb–B amorphous alloys and coatingscitations
- 2010CGO-based electrochemical catalysts for low temperature combustion of propenecitations
- 2009Physicochemical Origins of Electrochemical Promotion of LSM/YSZcitations
Places of action
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conferencepaper
Passive film characterization of a novel FeCrMoNbB alloy by combined EIS and XPS
Abstract
The development of new materials to replace conventional stainless steel for marine applications has been drawing attention in recent years. Fe-based amorphous with low Cr content seems to be an alternative. However, the behavior of these alloys is far from being completely understood 1,2,3. The aim of this work is to understand the effect of devitrification on the corrosion resistance of a novel FeCrMoNbB alloy by means of the characterization of the passive film. For this purpose, a combination of Electrochemical Impedance Spectroscopy (EIS) and X-ray Photoelectron Spectroscopy (XPS) techniques was employed. Ribbons prepared by melt-spinning were annealed in a furnace under Ar protective atmosphere. Corrosion tests were performed in a three-electrode cell set up in a Gamry 600+ potentiostat. Corrosion behavior was analyzed by corrosion current (icorr) and corrosion potential (Ecorr) measurements. EIS Data were deeply analyzed using for the first time in the literature Measurement Model developed by Orazem et al. 4 and SIMAD software implemented power law model. X-ray photoelectron microscopy (XPS) was performed after stabilization at corrosion potential for two hours to obtain complementary information about the passive film composition. Outstanding corrosion behavior was observed for amorphous samples. The corrosion properties were sensitive to the devitrification process. However, samples heat-treated up to 720°C showed good corrosion resistance and a wide passivation plateau (900mV vs OCP) was detected. Above this temperature, the samples were no longer passive. The XPS analysis showed that all alloying elements were present on the surface in the oxidized form. The thickness was calculated to be around 3-7 nm for all cases. The analysis showed that the proportion of protective oxides in the passive film such as Cr2O3, NbXOY and MoOX reduced with increasing annealing temperature, in good agreement with the corrosion resistance decrease. EIS results showed a high impedance modulus value at low frequency (|ZLF|) for the amorphous state, which decreases with increasing heat treatment temperature. The power-law model was used for data fitting to obtain a film resistivity profile. The data also allowed the estimation of the oxide layer capacitance and thickness corroborating those found by XPS. A capacitive-like behavior described by a single constant-phase element was identified for the amorphous sample. Values of 1013 Ω.cm was obtained for the resistivity in the metal/oxide interface. These resistivity values decrease with increasing temperature. In summary, the results are promising for the use of these alloys for marine applications, potentially replacing conventional stainless steels. Such studies also intend to evaluate the potential for developing new coatings from Fe-based glass since they keep good corrosion properties in temperatures up to 720°C, which can be interesting for processes that reach high temperatures.