A comparison of microstructure evolution due to fatigue loading in Eurofer 97 and ODS Eurofer steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00435450" target="_blank" >RIV/68081723:_____/14:00435450 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.proeng.2014.06.288" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2014.06.288</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2014.06.288" target="_blank" >10.1016/j.proeng.2014.06.288</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A comparison of microstructure evolution due to fatigue loading in Eurofer 97 and ODS Eurofer steels

Popis výsledku v původním jazyce

The Eurofer 97 steel and its variant strengthened by fine oxide dispersion (ODS Eurofer) were investigated. Both variants were subjected to the cyclic loading at room temperature. Moreover, the Eurofer 97 steel was exposed to the cyclic loading at 550°Cand the ODS Eurofer steel at 650 and 750 °C. Continuous cyclic softening was found in both variants. Nevertheless, addition of 0.3 wt% of Y2O3 significantly reduces softening rate in the ODS Eurofer compared with the Eurofer 97 steel. Microstructure evolution and the role of oxide dispersion were investigated by means of transmission electron microscopy. It was observed the oxide dispersion suppresses grain growth in the ODS Eurofer steel and thus possible operating temperature is higher. The oxide particles remain stable up to highest temperature studied. The microstructural aspects are discussed in relation to the cyclic behavior of both steels.

Název v anglickém jazyce

A comparison of microstructure evolution due to fatigue loading in Eurofer 97 and ODS Eurofer steels

Popis výsledku anglicky

The Eurofer 97 steel and its variant strengthened by fine oxide dispersion (ODS Eurofer) were investigated. Both variants were subjected to the cyclic loading at room temperature. Moreover, the Eurofer 97 steel was exposed to the cyclic loading at 550°Cand the ODS Eurofer steel at 650 and 750 °C. Continuous cyclic softening was found in both variants. Nevertheless, addition of 0.3 wt% of Y2O3 significantly reduces softening rate in the ODS Eurofer compared with the Eurofer 97 steel. Microstructure evolution and the role of oxide dispersion were investigated by means of transmission electron microscopy. It was observed the oxide dispersion suppresses grain growth in the ODS Eurofer steel and thus possible operating temperature is higher. The oxide particles remain stable up to highest temperature studied. The microstructural aspects are discussed in relation to the cyclic behavior of both steels.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GP13-28685P" target="_blank" >GP13-28685P: Identifikace mechanismů únavového poškození u moderních ocelí vyvíjených pro fúzní a jaderné reaktory.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

XVII International Colloquium on Mechanical Fatigue of Metals (ICMFM17)

ISBN

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ISSN

1877-7058

e-ISSN

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Počet stran výsledku

4

Strana od-do

401-404

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Verbania

Datum konání akce

25. 6. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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