| 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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Gaslain, Fabrice
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Ductile shear damage micromechanisms studied by correlative multiscale nanotomography and SEM/EBSD for a recrystallized aluminum alloy 2198 T8citations
- 2024Analysis of the effect of surface mechanical attrition treatment on the mechanical properties of 17-4 PH stainless steel obtained by material extrusion
- 2024Experimental and digital twinning in ZnAlMg coatingscitations
- 2023Local characterization of stainless steel 17-4PH produced by material extrusion additive manufacturing: Influence of the post-treatmentcitations
- 2020On the effect of a thermal treatment on the tensile and fatigue properties of weak zones of similar Ti17 linear friction welded joints and parent materialcitations
- 2019Local microstructural characterization of an aged UR45N rolled steel: Application of the nanogauges grating coupled EBSD techniquecitations
- 2019Local microstructural characterization of an aged UR45N rolled steel: Application of the nanogauges grating coupled EBSD techniquecitations
- 2019Investigation of nanoscale strains at the austenitic stainless steel 316L surface : Coupling between nanogauges gratings and EBSD technique during in situ tensile testcitations
- 2019Investigation of nanoscale strains at the austenitic stainless steel 316L surface : Coupling between nanogauges gratings and EBSD technique during in situ tensile testcitations
- 2018Advanced TEM Investigation of Interfaces in As-Prepared and Corroded Al-Al2O3 Cold Sprayed Coatings on Steel
- 2018Diffusion processes as possible mechanisms for Cr depletion at SCC crack tip
- 2017Intergranular oxidation of nickel-base alloys : potentialities of focused ion beam tomographycitations
- 2017Diffusion processes as possible mechanisms for Cr depletion at SCC crack tipcitations
- 2017Multiscale experimental and numerical approach to the powder particle shape effect on Al-Al2O3 coating build-upcitations
- 2016The role of intergranular chromium carbides on intergranular oxidation of nickel based alloys in pressurized water reactors primary watercitations
- 2016Experimental and thermodynamic analysis of differences in phase transformation of Pt-modified nickel aluminide coating during isothermal and cyclic oxidationcitations
- 2016Rumpling of nickel aluminide coatings : a reassessment of respective influence of thermal grown oxide and phase transformationscitations
- 2015The role of intergranular chromium carbides on stress corrosion cracking of nickel base alloys in pwr primary water
- 2015Coupling and scale effects: two main issues to begin to understand intergranular stress corrosion cracking in nickel bases alloy.
- 2013TEM investigations on the effect of chromium content and of stress relief treatment on precipitation in Alloy 82citations
- 2011Irradiation assisted stress corrosion cracking of stainless steels in a PWR environment (A combined approach)citations
- 2011Irradiation assisted stress corrosion cracking of stainless steels in a PWR environment (A combined approach)citations
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document
Diffusion processes as possible mechanisms for Cr depletion at SCC crack tip
Abstract
Two mechanisms are studied to explain the asymmetrical chromium depletions observed ahead of SCC crack tips in nickel-base alloys: diffusion-induced grain boundary migration (DIGM) and plasticity-enhanced diffusion. On the one hand, DIGM is evidenced in a model Alloy 600 by focused ion beam (FIB) coupled with scanning electron microscopy (SEM) cross-section imaging and analytical transmission electron microscopy (TEM) after annealing at 500 °C under vacuum and at 340 °C after exposure to primary water. The occurrence of grain boundary migration depends on the grain boundary character and misorientation. On the other hand, the effect of plasticity on chromium diffusion in nickel single-crystals is investigated by performing diffusion tests during creep tests at 500 and 350 °C. An enhancement of Cr diffusion is observed and a linear relationship between the diffusion coefficient and strain rate is evidenced. At last, in an attempt to discriminate the two mechanisms, an analytical modeling of the Cr-depleted areas observed at propagating SCC crack tips is proposed.