Effect of Zirconium Hydrides on the mechanical behavior of cladding
| Autor: | F.J. Gómez, M. A. Martin-Rengel, J. Ruiz-Hervias |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Zirconium Radiation Materials science Hydride chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Cladding (fiber optics) 01 natural sciences 010305 fluids & plasmas Dry storage Nuclear Energy and Engineering chemistry 0103 physical sciences Cylinder stress General Materials Science Composite material 0210 nano-technology Safety Risk Reliability and Quality |
| Zdroj: | Kerntechnik. 83:502-506 |
| ISSN: | 2195-8580 0932-3902 |
| DOI: | 10.3139/124.110947 |
| Popis: | During some operations previous to the dry storage, which involve high temperature and hoop stress on the cladding, a part of the hydride platelets may precipitate along the radial direction. As a consequence, cladding embrittlement may occur. In this paper, the experimental techniques developed for the authors to produce hydride reorientation in unirradiated cladding are shown. Samples of fuel cladding with 150 and 500 ppm of hydrogen were prepared. Subsequently, these samples were subjected to reorientation treatments by applying high temperature (400 °C) and constant hoop stress (60, 90, 120 and 140 MPa). Finally, ring compression tests (RCT) were carried out to study the cladding embrittlement. Samples after the reorientation treatment (i.e. with radial hydrides) were subjected to RCT at 20, 135 and 300 °C and the results are discussed. |
| Databáze: | OpenAIRE |
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