Optimization of surface properties for nanoindentation studies on nuclear structural materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F17%3AN0000089" target="_blank" >RIV/26722445:_____/17:N0000089 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.891.67" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/MSF.891.67</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.891.67" target="_blank" >10.4028/www.scientific.net/MSF.891.67</a>

Result language
angličtina
Original language name
Optimization of surface properties for nanoindentation studies on nuclear structural materials
Original language description
Nanoindentation is used for evaluation of materials in smaller volume. In nuclear materials field, this method can the assess mechanical properties and relates to the level of radiation induced damage. Due to the high sensitivity of nanoindentation system, that typically uses loads in the range of tens of nN up to several tens of mN, a precise metallographic sample preparation is important. In the current study, samples from Austenitic Stainless Steel (ASS) 321, that is representative of reactor internals, were prepared by 6 different metallographic methods. Firstly, non-irradiated samples were used for optimization of the sample preparation methodology and then it will be applied on irradiated samples to obtain local mechanical properties. Scanning Probe Microscopy (SPM imaging) and nanoindentation results showed the multi-grained austenitic structure with minimal roughness. This study shows that advanced methods such as ion polishing are not suitable for ASS preparation, but standard methods based on chemical reaction with structure, especially electrolytic polishing and etching, are highly recommended.
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project
<a href="/en/project/LQ1603" target="_blank" >LQ1603: Research for SUSEN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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