| 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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Mendibide, Christophe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Effect of degraded environmental conditions on the service behavior of a X65 pipeline steel not designed for hydrogen transportcitations
- 2021Corrosion and hydrogen permeation in H2S environments with O2 contamination – Part 3: the impact of acetate-buffered test solution chemistrycitations
- 2021Corrosion behavior of aluminum alloy 5754 in cement‐based matrix‐simulating nuclear waste disposal conditionscitations
- 2021Stress corrosion cracking susceptibility of P285NH and API 5L X65 steel grades in the high‐level radioactive waste repository cell conceptcitations
- 2020Impact of oxygen contamination on the electrochemical impedance spectroscopy of iron corrosion in H2S solutionscitations
- 2020Impact of oxygen contamination on the electrochemical impedance spectroscopy of iron corrosion in H2S solutionscitations
- 2019Corrosion and hydrogen permeation of low alloy steel in H2S-containing environments : the effect of test buffer solution chemistry
- 2019Corrosion and hydrogen permeation of low alloy steel in H2S-containing environments : the effect of test buffer solution chemistry
- 2019EIS study of iron and steel corrosion in aqueous solutions at various concentrations of dissolved H2S : impact of oxygen contamination.
- 2019EIS study of iron and steel corrosion in aqueous solutions at various concentrations of dissolved H2S : impact of oxygen contamination.
- 2019Corrosion and Hydrogen Permeation in H2S Environments with O2 Contamination, Part 2: Impact of H2S Partial Pressurecitations
- 2019Corrosion and Hydrogen Permeation in H2S Environments with O2 Contamination, Part 2: Impact of H2S Partial Pressurecitations
- 2018Electrochemical impedance spectroscopy of iron corrosion in H 2 S solutionscitations
- 2018Electrochemical impedance spectroscopy of iron corrosion in H 2 S solutionscitations
- 2018Corrosion of Pure iron and Hydrogen Permeation in the Presence of H 2 S with O 2 contamination
- 2018Corrosion of Pure iron and Hydrogen Permeation in the Presence of H 2 S with O 2 contamination
- 2018Corrosion of pure iron and hydrogen permeation in the presence of H2S with O2 contamination
- 2018Electrochemical study of oxygen impact on corrosion and hydrogen permeation of Armco iron in the presence of H 2 S
- 2018Electrochemical impedance spectroscopy of iron corrosion in H2S solutions
- 2017Impact of Oxygen on Corrosion and Hydrogen Permeation of Pure iron in the Presence of H2S
- 2017Impact of Oxygen on Corrosion and Hydrogen Permeation of Pure iron in the Presence of H2S
- 2017Impact of Oxygen on Corrosion and Hydrogen Permeation of Pure iron in the Presence of H2S
- 2008Raman mapping of corrosion products formed onto spring steels during salt spray experiments. A correlation between the scale composition and the corrosion resistancecitations
Places of action
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document
EIS study of iron and steel corrosion in aqueous solutions at various concentrations of dissolved H2S : impact of oxygen contamination.
Abstract
Mildly acidic water containing dissolved H 2 S presents a strong risk in the cracking of low-carbon steels. Several studies on H 2 S cracking mechanisms have shown that the main driving force is linked to the ability of H 2 S to promote hydrogen entry into the bulk material. Standard test methods have been developed and published as NACE technical standards (e.g. NACE TM0284 and NACE TM0177) to aid materials selection in the oil and gas sector. Though it is recognized that oxygen pollution should be avoided during H 2 S cracking tests, there is a lack of experimental data to illustrate the effects of a small oxygen pollution. Dissolved oxygen concentrations greater than the recommended upper limit (50 parts per billion) can easily be obtained in the case of poor laboratory practices. This paper will focus on the interactions between oxygen and H 2 S on electrochemical behavior of unalloyed steel. A continuous O 2 injection at a level corresponding to 500 ppb is applied, together with H 2 S bubbling in our test solutions, for periods lasting the same order as SSC standard tests. Steel surface reaction phenomena/corrosion rates in H 2 S saturated solution, with or without oxygen pollution, are studied using electrochemical impedance spectroscopy. The evolution of corrosion rates obtained from impedance analysis was compared to two other independent methods: i/ weight loss measurements and, ii/ hydrogen permeation. Without O 2 pollution, a permeation efficiency of 100% was obtained, as expected. Permeation current density was thus found to match precisely with the corrosion current density determined by impedance analysis at different times. On the other hand, when a continuous O 2 pollution was added in the system, significantly higher corrosion rates were observed, associated with test solution acidification. At the same time, permeation efficiency was decreased by up to one order of magnitude.