Chemical reactions between caesium, tellurium and oxygen with fast breeder reactor cladding alloys
| Autor: | M.W. Richards, Richard J. Pulham |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Cladding (metalworking)
Nuclear and High Energy Physics Materials science Inorganic chemistry Metallurgy Oxide chemistry.chemical_element Intergranular corrosion Chemical reaction Oxygen Corrosion chemistry.chemical_compound Chromium Nuclear Energy and Engineering chemistry Ferrite (iron) Caesium General Materials Science Caesium chromate Tellurium |
| Zdroj: | Journal of Nuclear Materials. 172:206-219 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/0022-3115(90)90439-t |
| Popis: | The corrosion of the alloys PE16 and M316 by Cs : Te mixtures (1:1, 2:1 and 4:1) has been studied in sealed capsules under partial pressures of O2 set by metal/metal oxide couples at 948 K for 168 h. The alloys suffered severe intergranular corrosion by the 1:1 mixtures and corrosion seemed independent of O2 potential. The 2:1 and 4:1 mixtures produced a matrix (alternate layering) type of corrosion and the depth of corrosion increased with increasing O2 potential. At the highest potential the 4:1 mixture differentiated the two alloys; PE16 suffered a combination of intergranular and matrix attack whereas M316 was penetrated throughout (mainly by Cs/oxygen) intergranularly. Generally Cs, Te, Cr and oxygen were found associated (as a mixture of caesium chromate and chromium telluride), and PE16 was more resistant than M316 steel to corrosion. |
| Databáze: | OpenAIRE |
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