Crack initiation due to liquid metal embrittlement for the steel T91 and two ODS steels in Liquid lead

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00473169" target="_blank" >RIV/68081723:_____/16:00473169 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Crack initiation due to liquid metal embrittlement for the steel T91 and two ODS steels in Liquid lead

Popis výsledku v původním jazyce

Ferritic-martensitic steels and oxide dispersion strengthened steels are materials intensively studied because of their potential to be used for construction of Gen IV fast nuclear reactors. Steels were developed for fast breeder reactors (high-temperature strength and swelling resistance under irradiation). In this study the effect of liquid lead on the crack growth rate of the steels was evaluated. Steels T91, MA957, PM2000 were used to evaluate their interaction with liquid lead under stress corresponding to maximum requested design condition. Liquid Metal Embrittlement (LME) initiation tests were conducted on pre-loaded specimens in flowing liquid metal loops. The experiments were carried out at 400°C and post-test evaluation was performed. Some specimens were pre-treated with a chemical flux, to induce wetting of Pb on the steel some were polished or ground. Liquid Metal Embrittlement was not observed on the surface of any of the pre-loaded specimens after the exposure in liquid lead at 400°C for 500 hours. The results are discussed and compared with previous accelerated tests.

Název v anglickém jazyce

Crack initiation due to liquid metal embrittlement for the steel T91 and two ODS steels in Liquid lead

Popis výsledku anglicky

Ferritic-martensitic steels and oxide dispersion strengthened steels are materials intensively studied because of their potential to be used for construction of Gen IV fast nuclear reactors. Steels were developed for fast breeder reactors (high-temperature strength and swelling resistance under irradiation). In this study the effect of liquid lead on the crack growth rate of the steels was evaluated. Steels T91, MA957, PM2000 were used to evaluate their interaction with liquid lead under stress corresponding to maximum requested design condition. Liquid Metal Embrittlement (LME) initiation tests were conducted on pre-loaded specimens in flowing liquid metal loops. The experiments were carried out at 400°C and post-test evaluation was performed. Some specimens were pre-treated with a chemical flux, to induce wetting of Pb on the steel some were polished or ground. Liquid Metal Embrittlement was not observed on the surface of any of the pre-loaded specimens after the exposure in liquid lead at 400°C for 500 hours. The results are discussed and compared with previous accelerated tests.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA14-25246S" target="_blank" >GA14-25246S: Pokročilé ODS oceli pro aplikace v prostředí tavenin těžkých kovů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Advances in Materials Science for Environmental and Energy Technologies V - Materials Science and Technology 2015 Conference and Exhibition, MS and T 2015

ISBN

978-1-119-32361-7

ISSN

1042-1122

e-ISSN

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Počet stran výsledku

9

Strana od-do

103-111

Název nakladatele

American Ceramic Society

Místo vydání

Columbus

Místo konání akce

Columbus

Datum konání akce

4. 10. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000450488900007