Degradation of Cr-coated cladding under the simulated loss-of-coolant accident phenomena

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F22%3AN0000033" target="_blank" >RIV/26722445:_____/22:N0000033 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/22:00364868

Výsledek na webu

<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/8557/6475" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/8557/6475</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2022.37.0016" target="_blank" >10.14311/APP.2022.37.0016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Degradation of Cr-coated cladding under the simulated loss-of-coolant accident phenomena

Popis výsledku v původním jazyce

The presented study focuses on the evaluation of mechanical properties degradation of Cr-coated Zr-alloy fuel cladding. The main aim 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 overall cladding properties, coatings’ general disadvantage is their reduced ability to tolerate plastic strain. Therefore, in the first stage of the hypothetical Loss of Coolant Accident (LOCA), coating cracks might occur. The study is unique due to the consideration of coating cracks – before high-temperature (HT) oxidation specimens underwent either scratch test or burst test resulting in the creation of coating defects. The subsequent evaluation of obtained data consisted of performing the wavelength dispersion spectroscopy (WDS) and optical microscopy analysis and measuring the hydrogen content.

Název v anglickém jazyce

Degradation of Cr-coated cladding under the simulated loss-of-coolant accident phenomena

Popis výsledku anglicky

The presented study focuses on the evaluation of mechanical properties degradation of Cr-coated Zr-alloy fuel cladding. The main aim 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 overall cladding properties, coatings’ general disadvantage is their reduced ability to tolerate plastic strain. Therefore, in the first stage of the hypothetical Loss of Coolant Accident (LOCA), coating cracks might occur. The study is unique due to the consideration of coating cracks – before high-temperature (HT) oxidation specimens underwent either scratch test or burst test resulting in the creation of coating defects. The subsequent evaluation of obtained data consisted of performing the wavelength dispersion spectroscopy (WDS) and optical microscopy analysis and measuring the hydrogen content.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

<a href="/cs/project/TK03020169" target="_blank" >TK03020169: Prostředky a metodiky pro kvalifikaci „Accident Tolerant“ pokrytí jaderného paliva</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2022 Student Conference on Nuclear Engineering, SIMANE 2022. Acta Polytechnica CTU Proceedings

ISBN

978-800107094-9

ISSN

2336-5382

e-ISSN

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Počet stran výsledku

8

Strana od-do

16-23

Název nakladatele

ČVUT v Praze

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

21. 6. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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