High Temperature Oxidation of a Sponge Based E110 Cladding Tubes Material: Weight Gain and Reaction Layers Kinetics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193247%3A_____%2F17%3AN0000014" target="_blank" >RIV/60193247:_____/17:N0000014 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/abs/10.1080/00295450.2017.1389595" target="_blank" >https://www.tandfonline.com/doi/abs/10.1080/00295450.2017.1389595</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

High Temperature Oxidation of a Sponge Based E110 Cladding Tubes Material: Weight Gain and Reaction Layers Kinetics

Popis výsledku v původním jazyce

High-temperature oxidation of WWER fuel cladding under loss-of-coolant accident conditions represents a significant problem and an issue of ongoing study. A study of oxidation kinetics under hightemperature steam oxidation was carried out on a sponge-based E110 cladding tube material in as-received state and exposed to a temperature range between 600°C and 1300°C. Metallographic evaluation of the samples was used to determine the analytical dependencies of the processes of the oxide layer and the oxygen stabilized alpha-zirconium layer formation. The formation of this oxide layer and the layer under the oxide (oxygen stabilized alpha-zirconium) was usually considered to follow a parabolic rate law (e.g., Cathcart-Pawel for Zircaloy, and Solyany for iodide/electrolytic E110), however, the recently performed UJP PRAHA a.s. (UJP) experiments showed different kinetics for oxide layers in the whole temperature range between 600°C and 1300°C. The metallographic evaluation showed changing kinetics of oxide layer formation for several temperatures. Therefore, a new oxide layer formation kinetics, different from the parabolic law, was designed. The parabolic rate law was optimized for the oxygen stabilized alpha-zirconium, which is applicable in the temperature range between 950°C and 1300°C. The UJP experimental database containing more than 1000 data values was compared with the newly developed UJP correlations and other available correlations for iodide/electrolytic E110 and Zircaloy alloys. The UJP correlation for weight gain kinetics was compared with experimental data from different laboratories. Finally, a statistical analysis of all tested correlations is provided.

Název v anglickém jazyce

High Temperature Oxidation of a Sponge Based E110 Cladding Tubes Material: Weight Gain and Reaction Layers Kinetics

Popis výsledku anglicky

High-temperature oxidation of WWER fuel cladding under loss-of-coolant accident conditions represents a significant problem and an issue of ongoing study. A study of oxidation kinetics under hightemperature steam oxidation was carried out on a sponge-based E110 cladding tube material in as-received state and exposed to a temperature range between 600°C and 1300°C. Metallographic evaluation of the samples was used to determine the analytical dependencies of the processes of the oxide layer and the oxygen stabilized alpha-zirconium layer formation. The formation of this oxide layer and the layer under the oxide (oxygen stabilized alpha-zirconium) was usually considered to follow a parabolic rate law (e.g., Cathcart-Pawel for Zircaloy, and Solyany for iodide/electrolytic E110), however, the recently performed UJP PRAHA a.s. (UJP) experiments showed different kinetics for oxide layers in the whole temperature range between 600°C and 1300°C. The metallographic evaluation showed changing kinetics of oxide layer formation for several temperatures. Therefore, a new oxide layer formation kinetics, different from the parabolic law, was designed. The parabolic rate law was optimized for the oxygen stabilized alpha-zirconium, which is applicable in the temperature range between 950°C and 1300°C. The UJP experimental database containing more than 1000 data values was compared with the newly developed UJP correlations and other available correlations for iodide/electrolytic E110 and Zircaloy alloys. The UJP correlation for weight gain kinetics was compared with experimental data from different laboratories. Finally, a statistical analysis of all tested correlations is provided.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Nuclear Technology

ISSN

0029-5450

e-ISSN

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Svazek periodika

201

Číslo periodika v rámci svazku

Issue 1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

52-65

Kód UT WoS článku

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EID výsledku v databázi Scopus

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