High-temperature creep behavior of Cr-coated optimized ZIRLO cladding via inverse analysis based on finite element method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00385359" target="_blank" >RIV/68407700:21340/25:00385359 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.nucengdes.2025.114383" target="_blank" >https://doi.org/10.1016/j.nucengdes.2025.114383</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nucengdes.2025.114383" target="_blank" >10.1016/j.nucengdes.2025.114383</a>
Alternative languages
Result language
angličtina
Original language name
High-temperature creep behavior of Cr-coated optimized ZIRLO cladding via inverse analysis based on finite element method
Original language description
After the Fukushima accident, nuclear power plant operators have required technologies that can prevent or delay the progression of a severe accident. For this reason, accident tolerant fuel (ATF) is being developed in many countries. As a near-term (NT) ATF cladding, chrome-coated cladding is the leading technology. The properties of the chromium coating layer change depending on the manufacturing process. It is inappropriate to directly apply bulk chromium properties to Cr coating due to significant microstructural differences. Since the thickness of the coating layer is tens of micrometers, it is difficult to obtain the properties by conventional experimental methods. This study presents a comprehensive approach to evaluate the high-temperature creep behavior of Cr-coated Optimized ZIRLOTM (Opt. ZIRLO) nuclear fuel cladding. The finite element method (FEM)based fuel performance code MERCURY, developed by KAERI, was coupled with the commercial optimization tool ISIGHT to perform inverse analysis. Under the framework of the IAEA ATF-TS project, isothermal bust tests were conducted at two temperature levels (1080 K and 1180 K) with various internal pressure conditions. The high-temperature creep parameters for both the substrate and Cr coating layers as well as the effective parameter for a single-layer model were derived. The burst analysis using the derived properties showed good agreement with the burst test results. The analysis also confirmed the delayed start point of ballooning for the chrome-coated cladding.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);
Result continuities
Project
<a href="/en/project/TM04000018" target="_blank" >TM04000018: Joint Cooperative Research on Technology Familiarisation and the Development of the Accident-Tolerant Fuel for New Nuclear Power Plant</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Engineering and Design
ISSN
0029-5493
e-ISSN
1872-759X
Volume of the periodical
444
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
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UT code for WoS article
001558116300002
EID of the result in the Scopus database
2-s2.0-105012934241