Optimization of surface properties for nanoindentation studies on nuclear structural materials

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of surface properties for nanoindentation studies on nuclear structural materials

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Optimization of surface properties for nanoindentation studies on nuclear structural materials

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/LQ1603" target="_blank" >LQ1603: Výzkum pro SUSEN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Materials Science Forum, Volume 891, MSF, 2017

ISBN

978-303571018-2

ISSN

0255-5476

e-ISSN

—

Počet stran výsledku

6

Strana od-do

67-72

Název nakladatele

Trans Tech Publications Ltd

Místo vydání

—

Místo konání akce

Stará Lesná; Slovakia

Datum konání akce

20. 4. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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