dorsal/arxiv
View SchemaOrigin of the hydrogen involved in iron corrosion under irradiation
| Authors | S. Lapuerta, N. Millard-Pinard, N. Moncoffre, N. Bérerd, H. Jaffrézic, G. Brunel, D. Crusset, Th. Mennecart |
|---|---|
| Categories | |
| ArXiv ID | physics/0509117 |
| URL | https://arxiv.org/abs/physics/0509117 |
| DOI | 10.1016/j.surfcoat.2006.01.094 |
| Journal | Dans Surface and Coatings Technology (201) - 14th International Conference on Surface Modification of Materials by Ion Beams - SMMIB 2005, Kusadasi (2005) |
Abstract
In the perspective of long term geological storage, high level nuclear wastes will be overpacked in low carbon steel containers. In that context, we have studied the influence of oxygen dissolved in water on iron corrosion. Therefore, leaching experiments were performed in desaerated D$\_2$O and in aerated H$\_2$O and a kinetic study of iron corrosion under proton irradiation was lead in aqueous media with two different dissolved oxygen concentrations. The leaching experiments underline the major role of dissolved oxygen in oxydoreduction reactions which take place as far as iron is in contact with water. But the kinetic study of iron corrosion under irradiation put in evidence the balance between the oxydoreduction reactions and the corrosion rate induced by radicals species generated by water radiolysis. In addition, to check if, in the atomic % concentration range, hydrogen diffuse from the air/Fe interface through the foil an irradiation experiment was performed in argon. It proved that no hydrogen permeation occurs at a concentration level of the atomic percent.
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"abstract": "In the perspective of long term geological storage, high level nuclear wastes\nwill be overpacked in low carbon steel containers. In that context, we have\nstudied the influence of oxygen dissolved in water on iron corrosion.\nTherefore, leaching experiments were performed in desaerated D$\\_2$O and in\naerated H$\\_2$O and a kinetic study of iron corrosion under proton irradiation\nwas lead in aqueous media with two different dissolved oxygen concentrations.\nThe leaching experiments underline the major role of dissolved oxygen in\noxydoreduction reactions which take place as far as iron is in contact with\nwater. But the kinetic study of iron corrosion under irradiation put in\nevidence the balance between the oxydoreduction reactions and the corrosion\nrate induced by radicals species generated by water radiolysis. In addition, to\ncheck if, in the atomic % concentration range, hydrogen diffuse from the air/Fe\ninterface through the foil an irradiation experiment was performed in argon. It\nproved that no hydrogen permeation occurs at a concentration level of the\natomic percent.",
"arxiv_id": "physics/0509117",
"authors": [
"S. Lapuerta",
"N. Millard-Pinard",
"N. Moncoffre",
"N. B\u00e9rerd",
"H. Jaffr\u00e9zic",
"G. Brunel",
"D. Crusset",
"Th. Mennecart"
],
"categories": [
"physics.chem-ph"
],
"doi": "10.1016/j.surfcoat.2006.01.094",
"journal_ref": "Dans Surface and Coatings Technology (201) - 14th International\n Conference on Surface Modification of Materials by Ion Beams - SMMIB 2005,\n Kusadasi (2005)",
"title": "Origin of the hydrogen involved in iron corrosion under irradiation",
"url": "https://arxiv.org/abs/physics/0509117"
},
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