Enhancing the irradiation resistance of Cr coating via periodic insertion of nanochannel CrAlSiN layers that act as elastic unsaturated "sponges"
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00383319" target="_blank" >RIV/68407700:21230/25:00383319 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.corsci.2025.112742" target="_blank" >https://doi.org/10.1016/j.corsci.2025.112742</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.corsci.2025.112742" target="_blank" >10.1016/j.corsci.2025.112742</a>
Alternative languages
Result language
angličtina
Original language name
Enhancing the irradiation resistance of Cr coating via periodic insertion of nanochannel CrAlSiN layers that act as elastic unsaturated "sponges"
Original language description
Cr-based coatings, as protective coatings of Zr-alloy fuel claddings, inevitably suffer from irradiation damage under actual nuclear operating conditions. Here, Cr/CrAlSiN multilayer coatings were deposited on Zircaloy substrates by magnetron sputtering, followed by the evaluation of irradiation resistance using Fe ions. The insertion of nanochannel-CrAlSiN layers refined the columns/grains in Cr layers and increased the interface density, contributing to the greatly enhanced irradiation tolerance and mechanical properties. A low average swelling rate of Cr layers was estimated to be similar to 0.015 %/dpa after the irradiation of Fe ions at 400 degrees C. Moreover, the coating became compacted with strengthening columnar boundaries after low-dose irradiation (similar to 0.8 dpa). Both nanoindentation and micropillar compression test showed the transformation of the deformation mechanism for the multilayer coating, as the irradiated samples relieved stress mainly depending on the plastic deformation under loading, while many cracks formed in the as-deposited ones. Furthermore, in 1200 degrees C steam, a significantly thinner and denser oxide scale formed on the irradiated Cr/CrAlSiN coating, indicative of improved oxidation resistance. The mechanism of radiation-decelerated oxidation was briefly discussed.
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
20506 - Coating and films
Result continuities
Project
<a href="/en/project/EH22_008%2F0004590" target="_blank" >EH22_008/0004590: Robotics and advanced industrial production</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.
Data specific for result type
Name of the periodical
Corrosion Science
ISSN
0010-938X
e-ISSN
1879-0496
Volume of the periodical
246
Issue of the periodical within the volume
April
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
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UT code for WoS article
001425143100001
EID of the result in the Scopus database
2-s2.0-85216898445