| 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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Martin, Frantz
CEA Saclay
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Hydrogen Embrittlement Characterization of 1.4614 and 1.4543 Martensitic Precipitation Hardened Stainless Steels
- 2024Experimental study of the hydrogen-microstructure interactions in a pre-strained 316L austenitic stainless steelcitations
- 2023Effect of surface nitriding on the durability of a Ti-6Al-4V alloy in high temperature pressurized liquid water
- 2022Flow Accelerated Corrosion of titanium alloys in water at 300 °C and 15 MPa
- 2022Experimental assessment of flow accelerated corrosion in nuclear components
- 2022Hydrogen transport in 17-4 PH stainless steel: Influence of the metallurgical state on hydrogen diffusion and trapping
- 2022Effect of nitriding on the corrosion of Ti64 titanium alloy in pressurized water
- 2021Revisiting the effects of low-concentration hydrogen in NiTi self-expandable stentscitations
- 2020Corrosion of titanium alloys in pressurized water at 300 °C and 15 MPa
- 2019Kinetics of hydrogen desorption from Zircaloy-4: Experimental and Modellingcitations
- 2019Hydrogen diffusion and trapping in FCC alloys: a quantitative approach based on experimental data and numerical analysis
- 2019Corrosion of titanium alloys in pressurised water at 300 °C and 350 °C
- 2019Stable isotopes used in the definition of corrosion mechanisms
- 2018Kinetics of hydrogen permeation through a Ni-base alloy membrane exposed to primary medium of pressurized water reactorscitations
- 2018Hydrogen trapping by irradiation-induced defects in 316L stainless steel
- 2017Isotopic tracing of hydrogen transport and trapping in nuclear materialscitations
- 2017Hydrogen trapping by irradiation-induced defects in 316L stainless steel
- 2016Role of grain boundaries in the diffusion of hydrogen in nickel base alloy 600:Study coupling thermal desorption mass spectroscopy with numerical simulationcitations
- 2016Role of grain boundaries in the diffusion of hydrogen in nickel base alloy 600: Study coupling thermal desorption mass spectroscopy with numerical simulationcitations
- 2016Hydrogen diffusion process in the oxides formed on Zirconium Alloys during corrosion in Pressurized Water Reactor Conditionscitations
- 2012Hydrogen Transport in 34CrMo4 Martensitic Steel: Influence of Microstructural Defects on H Diffusioncitations
- 2010A detailed TEM and SEM study of Ni-base alloys oxide scales formed in primary conditions of pressurized water reactorcitations
- 2005In situ AFM study of localised corrosion on a 304L stainless steel
Places of action
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conferencepaper
Corrosion of titanium alloys in pressurised water at 300 °C and 350 °C
Abstract
International audience ; A EUROCORRIn the future, some parts of the nuclear pressurised water reactor primary circuit components made of stainless steels and nickel-based alloys could potentially be made of titanium alloys. The use of titanium alloys may facilitate maintenance operations thanks to their low neutron activation. However, resistance of titanium alloys to corrosion in such conditions is poorly known. The goal of the present study is the determination of the influence of temperature on the mechanisms and the kinetics of corrosion and on the hydrogen uptake of three titanium alloys: Ti CP (α-phase), Ti 64 or Ti¬6Al¬4V, (4 vol% of β phase) and Ti10-¬2-¬3 (38 vol% of β phase).One-millimeter-thick polished flat specimens of each of these alloys were exposed to pressurized water in a stainless steel corrosion loop up to 3500 h at 300 °C and up to 1750 h at 350 °C both at pH ≈ 7.5 at a fluid velocity of 2.103 m.s-1. A dissolved hydrogen concentration of 2.25 mgH2/kgH2O was imposed by the hydrogen gaz pressure (0.14 MPa) in the vessel of the cold part of the loop. The oxide layers were then characterised by scanning electron microscopy (SEM), Raman spectroscopy, X-Ray diffraction, transmission electron microscopy (TEM), photoelectrochemistry and glow discharge – optical emission spectroscopy (GD-OES). The metal thickness affected by corrosion was estimated by SEM on specimens’ cross sections and by mass gain. The hydrogen uptake was measured by the melting under inert gas technique.A continuous dense oxide layer of about 30 nm thick was formed by oxidation by water at both temperatures on the three alloys considered. At 300 °C, it was made of TiO2 rutile for Ti CP (the stable phase in these conditions) and of TiO2 anatase for Ti 64 and Ti10-2-3. In parallel, oxide dissolution and precipitation phenomena led to the formation of TiO2 anatase and FeTiO3 ilmenite crystallites with a diameter ranging from 0.1 µm to 10 µm located on top of the continuous oxide layer. The thickness of the continuous oxide layer ...