Počet záznamů: 1
Embrittlement of Ferritic ODS Steel in Pb and Pb-Bi Coolants
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SYSNO ASEP 0435597 Druh ASEP O - Ostatní výsledky Zařazení RIV O - Ostatní Název Embrittlement of Ferritic ODS Steel in Pb and Pb-Bi Coolants Tvůrce(i) Hadraba, Hynek (UFM-A) RID, ORCID
Stratil, Luděk (UFM-A) ORCID
Hojná, A. (CZ)
Di Gabrielle, F. (CZ)Rok vydání 2014 Jazyk dok. eng - angličtina Země vyd. NO - Norsko Klíč. slova oxide dispersion strengthened ; impact behaviour ; carbide coarsening Vědní obor RIV JG - Hutnictví, kovové materiály CEP GA14-25246S GA ČR - Grantová agentura ČR Institucionální podpora UFM-A - RVO:68081723 Anotace Oxide dispersion strengthened (ODS) steels are strong candidates for use as structural materials in future energy production systems, including generation IV fission reactors, fusion reactors and spallation neutron sources. The aim of this work was to describe microstructural changes in ODS steel (ODM401) caused by long-term high-temperature exposure to liquid Pb and Pb-Bi metals environments. Tensile and impact bend tests were used to observe oxide scale development and microstructural changes. The surface oxide layer of the steel was depleted in Cr and Ti when exposed to liquid Pb and Pb-Bi. The embrittlement of ODS steel following exposure to liquid Pb and Pb-Bi was greater than embrittlement caused by isothermal aging. The degradation of mechanical properties of the steel in liquid metals was caused by porosity development, precipitates coarsening and corrosion damage during long-term high-temperature exposure in liquid corrosive media. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2015
Počet záznamů: 1