Nanoindentation of hydrogen enriched Zr-1Nb zirconium alloy nuclear fuel claddings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000049" target="_blank" >RIV/26722445:_____/20:N0000049 - isvavai.cz</a>
Result on the web
<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/6713" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/6713</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2020.27.0155" target="_blank" >10.14311/APP.2020.27.0155</a>
Alternative languages
Result language
angličtina
Original language name
Nanoindentation of hydrogen enriched Zr-1Nb zirconium alloy nuclear fuel claddings
Original language description
Zirconium alloys are being commonly used as a material of choice for nuclear fuel claddings in water cooled nuclear reactors for decades due to their good corrosion resistance and low neutron absorption. However, the increasing operation conditions of next generation nuclear reactors (Gen-IV) in terms of higher temperatures, pressures and higher neutron flux requires evaluation of further Zr cladding usability. The embrittlement of Zr claddings due to hydrogen pickup from reactor coolant is one of the issues for its potential use in Gen-IV reactors. Nanoindentation is an effective tool for analysis of the change of mechanical properties of hydrogen enriched Zr claddings from localised material volume. Zirconium alloy Zr-1Nb (E110) with experimentally induced hydrides was analysed by the means of nanoindentation. Zirconium hydrides were formed in the material after exposure in high temperature water autoclave. The optimized methodology of surface preparation suitable for nanoindentation is described and the resulting surface quality is discussed. The nanoindentation measurements were performed as an array of 10x10 indents across areas with hydrides. Depth dependent hardness and reduced modulus values measured by nanoindentation were compared between the material with no hydrogen content, low hydrogen content (127 ppm H) and high hydrogen content (397 ppm H). Complementary microhardness measurements at HV 0.1 were performed on all materials for bulk material hardness comparison.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Acta Polytechnica CTU Proceedings Volume 27
ISBN
978-800106735-2
ISSN
2336-5382
e-ISSN
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Number of pages
5
Pages from-to
155-159
Publisher name
ČVUT Praha
Place of publication
Praha
Event location
Praha
Event date
Nov 6, 2019
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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