Analysis of Steam Generators Corrosion Products from Slovak NPP Bohunice
| Autor: | Vladimír Slugeň, Pavol Šeliga, Július Dekan, Ivan Smieško, Jarmila Degmová, Constanze Thees |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Engineering
Article Subject Secondary circuit 7. Clean energy 01 natural sciences 010305 fluids & plasmas Corrosion chemistry.chemical_compound 0103 physical sciences lcsh:TA401-492 General Materials Science nuclear power plants steam generator corrosion safety Magnetite 010308 nuclear & particles physics business.industry Process Chemistry and Technology Metallurgy Boiler (power generation) Nuclear power Hematite Cracking chemistry 13. Climate action visual_art visual_art.visual_art_medium Water chemistry lcsh:Materials of engineering and construction. Mechanics of materials business |
| Zdroj: | International Journal of Corrosion, Vol 2012 (2012) |
| ISSN: | 1687-9333 1687-9325 |
| Popis: | One of the main goals of the nuclear industry is to increase the nuclear safety and reliability of nuclear power plants (NPPs). As the steam generator (SG) is the most corrosion sensitive component of NPPs, it is important to analyze the corrosion process and optimize its construction materials to avoid damages like corrosion cracking. For this purpose two different kinds of SGs and its feed water distributing systems from the NPP Jaslovske Bohunice were studied by nondestructive Mössbauer spectroscopy. The samples were scraped from the surface and analyzed in transmission geometry. Magnetite and hematite were found to be the main components in the corrosion layers of both SGs. Dependant of the material the SG consisted of, and the location in the system where the samples were taken, the ratios between magnetite and hematite and the paramagnetic components were different. The obtained results can be used to improve corrosion safety of the VVER-440 secondary circuit as well as to optimize its water chemistry regime. |
| Databáze: | OpenAIRE |
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