Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena
The present study focuses on the evaluation of the mechanical properties degradation of Cr-coated Zr-alloy fuel cladding. The main objective of the work is to find a suitable methodology to evaluate the mechanical properties degradation of coated cladding by performing several separate effects exper...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
CTU Central Library
2022-12-01
|
| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8557 |
| _version_ | 1798005975142105088 |
|---|---|
| author | Petr Červenka Jakub Krejčí Ladislav Cvrček František Manoch Adéla Chalupová Patricie Halodová Petra Gávelová |
| author_facet | Petr Červenka Jakub Krejčí Ladislav Cvrček František Manoch Adéla Chalupová Patricie Halodová Petra Gávelová |
| author_sort | Petr Červenka |
| collection | DOAJ |
| description | The present study focuses on the evaluation of the mechanical properties degradation of Cr-coated Zr-alloy fuel cladding. The main objective of the work is to find a suitable methodology to evaluate the mechanical properties degradation of coated cladding by performing several separate effects experiments.
Apart from the many positive effects of protective coatings on the overall cladding properties, coatings’ general disadvantage is their reduced ability to tolerate plastic strain. Therefore, coating cracks might occur in the first stage of the hypothetical Loss of Coolant Accident (LOCA). The study is unique because of the consideration of coating cracks. Prior to the high-temperature (HT) oxidation, samples were subjected to either a scratch test or burst test, resulting in the creation of coating defects. The subsequent evaluation of the obtained data consisted of wavelength dispersion spectroscopy (WDS) and optical microscopy analysis and hydrogen content measurements. |
| first_indexed | 2024-04-11T12:48:39Z |
| format | Article |
| id | doaj.art-7c912df292fc487ca5b7d2bb1297796c |
| institution | Directory Open Access Journal |
| issn | 2336-5382 |
| language | English |
| last_indexed | 2024-04-11T12:48:39Z |
| publishDate | 2022-12-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj.art-7c912df292fc487ca5b7d2bb1297796c2022-12-22T04:23:17ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822022-12-0137162310.14311/APP.2022.37.00165799Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomenaPetr Červenka0Jakub Krejčí1Ladislav Cvrček2František Manoch3Adéla Chalupová4Patricie Halodová5Petra Gávelová6Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Material Engineering, Karlovo námestí 293/13, 120 00 Prague, Czech Republic; UJP PRAHA a.s., Nad Kamínkou 1345, 156 00 Praha-Zbraslav, Czech RepublicUJP PRAHA a.s., Nad Kamínkou 1345, 156 00 Praha-Zbraslav, Czech RepublicCzech Technical University in Prague, Faculty of Mechanical Engineering, Department of Material Engineering, Karlovo námestí 293/13, 120 00 Prague, Czech RepublicUJP PRAHA a.s., Nad Kamínkou 1345, 156 00 Praha-Zbraslav, Czech RepublicCzech Technical University in Prague, Faculty of Mechanical Engineering, Department of Energy Engineering, Technická 4, 166 07 Praha 6, Czech RepublicResearch Centre Rež s.r.o., Hlavní 130, Husinec – Rež, 250 68 Husinec, Czech RepublicResearch Centre Rež s.r.o., Hlavní 130, Husinec – Rež, 250 68 Husinec, Czech RepublicThe present study focuses on the evaluation of the mechanical properties degradation of Cr-coated Zr-alloy fuel cladding. The main objective of the work is to find a suitable methodology to evaluate the mechanical properties degradation of coated cladding by performing several separate effects experiments. Apart from the many positive effects of protective coatings on the overall cladding properties, coatings’ general disadvantage is their reduced ability to tolerate plastic strain. Therefore, coating cracks might occur in the first stage of the hypothetical Loss of Coolant Accident (LOCA). The study is unique because of the consideration of coating cracks. Prior to the high-temperature (HT) oxidation, samples were subjected to either a scratch test or burst test, resulting in the creation of coating defects. The subsequent evaluation of the obtained data consisted of wavelength dispersion spectroscopy (WDS) and optical microscopy analysis and hydrogen content measurements.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8557atflocacoatingoxidationsecondary hydridingcladding embrittlement |
| spellingShingle | Petr Červenka Jakub Krejčí Ladislav Cvrček František Manoch Adéla Chalupová Patricie Halodová Petra Gávelová Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena Acta Polytechnica CTU Proceedings atf loca coating oxidation secondary hydriding cladding embrittlement |
| title | Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena |
| title_full | Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena |
| title_fullStr | Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena |
| title_full_unstemmed | Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena |
| title_short | Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena |
| title_sort | degradation of cr coated cladding under the simulated loss of coolant accident phenomena |
| topic | atf loca coating oxidation secondary hydriding cladding embrittlement |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8557 |
| work_keys_str_mv | AT petrcervenka degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena AT jakubkrejci degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena AT ladislavcvrcek degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena AT frantisekmanoch degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena AT adelachalupova degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena AT patriciehalodova degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena AT petragavelova degradationofcrcoatedcladdingunderthesimulatedlossofcoolantaccidentphenomena |