| 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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Derin, Bora
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Understanding passive film degradation and its effect on hydrogen embrittlement of super duplex stainless steel-Synchrotron X-ray and electrochemical measurements combined with CalPhaD and ab-initio computational studiescitations
- 2023The causation of hydrogen embrittlement of duplex stainless steel : Phase instability of the austenite phase and ductile-to-brittle transition of the ferrite phase – Synergy between experiments and modellingcitations
- 2023The Causation of Hydrogen Embrittlement of Duplex Stainless Steel: Phase Instability of the Austenite Phase and Ductile-to-Brittle Transition of the Ferrite Phase – Synergy between Experiments and Modellingcitations
- 2023Understanding Passive Film Degradation and its Effect on Hydrogen Embrittlement of Super Duplex Stainless Steel – Synchrotron X-ray and Electrochemical Measurements combined with CalPhaD and ab-initio Computational Studiescitations
- 2021Directed energy deposition process development for functionally gradient Copper-Inconel 718 materials
- 2020Vacuum oxy-nitro carburizing of tool steels: Structure and mechanical reliability
- 2017Effect of vacuum oxy-nitrocarburizing on the microstructure of tool steels: an experimental and modeling study
Places of action
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article
The Causation of Hydrogen Embrittlement of Duplex Stainless Steel: Phase Instability of the Austenite Phase and Ductile-to-Brittle Transition of the Ferrite Phase – Synergy between Experiments and Modelling
Abstract
Various mechanisms have been proposed for hydrogen embrittlement of duplex stainless steel, but the causation of hydrogen-induced material degradation has remained unclear. This work shows that phase instability (decomposition) of the austenite phase and ductile-to-brittle transition of the ferrite phase precedes hydrogen embrittlement. In-situ diffraction measurements revealed that Ni-rich sites of the austenite phase decompose into metastable hydrides. Hydride formation is possible by increasing the hydrogen chemical potential during electrochemical charging and low defect formation energy of hydrogen interstitials. Our findings demonstrate that hydrogen embrittlement can only be understood if measured in situ and in real-time during the embrittlement process.