Micro-mechanical evaluations of adhesion properties for Cr-coated accident tolerant fuel cladding

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F24%3A00378267" target="_blank" >RIV/68407700:21340/24:00378267 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.nme.2024.101799" target="_blank" >https://doi.org/10.1016/j.nme.2024.101799</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nme.2024.101799" target="_blank" >10.1016/j.nme.2024.101799</a>

Result language

angličtina

Original language name

Micro-mechanical evaluations of adhesion properties for Cr-coated accident tolerant fuel cladding

Original language description

The development of accident tolerant fuel (ATF) cladding has been encouraged to satisfy increased nuclear safety demands under accident conditions since Fukushima accident. Coating techniques using oxidation-resistant materials, such as Cr and Al, on existing Zr-alloy claddings have been widely applied as short-term solutions. However, coating delamination due to poor adhesion may reduce its benefits, such as low waterside corrosion/oxidation rates and fretting resistance, which necessitates accurate evaluation of coating adhesion suitability. In this study, micro-mechanical tests, micro-cantilever bending test and surface and interfacial cutting analysis system test, were conducted to qualitatively and quantitatively evaluate adhesion properties on a coated ATF cladding. In situ scanning electron microscopy-based micro-cantilever bending tests were performed using a pico-indenter equipped with a diamond flat tip. We present the results for magnetron-sputtered Cr-coated ATF claddings in detail. Micro-cantilever tests on the Cr-Zr interface revealed that deformation and failure primarily occurred in the Zr substrate, rather than at the interface. And the Cr-coated cladding showed highly adherent mechanical bonds, as evidenced by the interfacial strength and elastic modulus. SAICAS tests confirmed that peeling of the coating layer occurred only when the applied force exceeded the cutting force of the coating layer. The experimental results suggest that the Cr-coated cladding exhibited a sufficiently adherent mechanical bond to prevent delamination of the coating.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

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)

Publication year

2024

Confidentiality

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

Name of the periodical

Nuclear Materials and Energy

ISSN

2352-1791

e-ISSN

2352-1791

Volume of the periodical

41

Issue of the periodical within the volume

101799

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

—

UT code for WoS article

001350373700001

EID of the result in the Scopus database

2-s2.0-85207866532