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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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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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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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Bossuyt, Sven
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Topics
Publications (9/9 displayed)
- 2024DIC Analyses and Parameter Calibration of a Strain Aging Sensitive Ductile Cast Ironcitations
- 2024Effects of Static Strain Aging on Mechanical Performance of Ductile Cast Iron
- 2023Characterization of pulse electric current sintered Ti-6Al-4V ternary composites : Role of YSZ-Si3N4 ceramics addition on structural modification and hydrogen desorptioncitations
- 2021Hydrogen embrittlement of nodular cast ironcitations
- 2021Anisotropic plastic behavior of additively manufactured PH1 steelcitations
- 2019Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Methodcitations
- 2017Fatigue strength of laser-welded foam-filled steel sandwich beamscitations
- 2017Shear Banding Observed in Real-Time with a Laser Speckle Method
- 2008PROCESSING TECHNIQUE TO IMPREGNATE GLASS FIBRE MATS FOR TEXTILE REINFORCED CEMENTITIOUS COMPOSITES
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article
Hydrogen embrittlement of nodular cast iron
Abstract
Ferritic nodular cast iron, intended for use as the material for inserts of canisters for long-term geological disposal of spent nuclear fuel, was studied for hydrogen sensitivity. In the canisters, the insert provides the mechanical strength against external loads. Hydrogen was charged from 0.1 N H(2)SO(4)solution in free-corrosion tests and under controlled cathodic potential. Hydrogen uptake and trapping were then measured using thermal desorption spectroscopy. The hydrogen desorption rate after hydrogen charging manifests two distinct peaks. Plastic deformation during hydrogen charging increases the hydrogen uptake considerably. Hydrogen reduces the elongation to fracture and time to fracture in slow strain rate testing and constant load testing (CLT), respectively. Especially, the strain rate in CLT is dramatically increased. The appearance of hydrogen-induced cracking in the ferrite phase changes from ductile dimple fracture to brittle cleavage fracture due to hydrogen charging, which initiates from the interphases of the graphite nodules. The results are discussed in terms of the role of hydrogen and the graphite nodules in hydrogen embrittlement of ductile cast iron. ; Peer reviewed