CORROSION RESISTANCE AND HIGH-TEMPERATURE BEHAVIOR OF CHROME-NICKEL ALLOY CLADDING MATERIAL

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00378271" target="_blank" >RIV/68407700:21340/22:00378271 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.13182/TopFuel22-39268" target="_blank" >https://doi.org/10.13182/TopFuel22-39268</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13182/TopFuel22-39268" target="_blank" >10.13182/TopFuel22-39268</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CORROSION RESISTANCE AND HIGH-TEMPERATURE BEHAVIOR OF CHROME-NICKEL ALLOY CLADDING MATERIAL

Popis výsledku v původním jazyce

Cr-Ni alloys has been recently proposed as a potential ATF concept, primarily due to its high corrosion resistance under normal operation conditions and high-temperature oxidation. It is tested by UJP PRAHA in collaboration with CTU in Prague in the frame of the project sponsored by the Technology Agency of the Czech Republic. A set of experiments determining a wide range of material properties were performed. The investigations in this contribution followed previous work. Material in as-received state was evaluated using TEM, SEM-EBSD, DSC, and XRD methods. The ongoing long-term autoclave tests revealed superb corrosion resistance compared to reference Zr-cladding material under simulated WWER normal operating conditions (at 360 °C), in steam at 400 °C, in steam at 500 °C, and water containing 70 ppm of Li (at 360 °C). A set of high-temperature steam oxidation experiments were performed to determine behavior at LOCA and DEC conditions. Weight gain, hydrogen content were measured. Microstructure analysis (LOM, EDS) and mechanical properties (offset-strain) were evaluated. Thermomechanical tests were performed to understand the cladding deformation and the burst conditions during high-temperature transients. The ballooning size, prolongation of time to burst, burst opening dimensions.

Název v anglickém jazyce

CORROSION RESISTANCE AND HIGH-TEMPERATURE BEHAVIOR OF CHROME-NICKEL ALLOY CLADDING MATERIAL

Popis výsledku anglicky

Cr-Ni alloys has been recently proposed as a potential ATF concept, primarily due to its high corrosion resistance under normal operation conditions and high-temperature oxidation. It is tested by UJP PRAHA in collaboration with CTU in Prague in the frame of the project sponsored by the Technology Agency of the Czech Republic. A set of experiments determining a wide range of material properties were performed. The investigations in this contribution followed previous work. Material in as-received state was evaluated using TEM, SEM-EBSD, DSC, and XRD methods. The ongoing long-term autoclave tests revealed superb corrosion resistance compared to reference Zr-cladding material under simulated WWER normal operating conditions (at 360 °C), in steam at 400 °C, in steam at 500 °C, and water containing 70 ppm of Li (at 360 °C). A set of high-temperature steam oxidation experiments were performed to determine behavior at LOCA and DEC conditions. Weight gain, hydrogen content were measured. Microstructure analysis (LOM, EDS) and mechanical properties (offset-strain) were evaluated. Thermomechanical tests were performed to understand the cladding deformation and the burst conditions during high-temperature transients. The ballooning size, prolongation of time to burst, burst opening dimensions.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/TK04030168" target="_blank" >TK04030168: Tolerantní jaderná paliva pro malé modulární reaktory a jejich bezpečnostní hodnocení</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

Proceedings of TopFuel 2022 Light Water Reactor Fuel Performance Conference

ISBN

9780894487941

ISSN

—

e-ISSN

—

Počet stran výsledku

10

Strana od-do

236-245

Název nakladatele

American Nuclear Society, Inc.

Místo vydání

Illinois

Místo konání akce

Raleigh, NC

Datum konání akce

9. 10. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—