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Fracture behavior of the ODS steels prepared by internal oxidation
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SYSNO ASEP 0481459 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fracture behavior of the ODS steels prepared by internal oxidation Author(s) Stratil, Luděk (UFM-A) ORCID
Šiška, Filip (UFM-A) RID, ORCID
Hadraba, Hynek (UFM-A) RID, ORCID
Bártková, Denisa (UFM-A)
Fintová, Stanislava (UFM-A) ORCID
Puchý, V. (SK)Number of authors 6 Source Title Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 124, NOV (2017), s. 1108-1111Number of pages 4 s. Language eng - English Country CH - Switzerland Keywords ODS ; Internal oxidation ; Fracture toughness ; J-R curve ; Fracture analysis Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GJ15-21292Y GA ČR - Czech Science Foundation (CSF) GA14-25246S GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 UT WOS 000419411900230 EID SCOPUS 85014719709 DOI 10.1016/j.fusengdes.2017.03.008 Annotation The up-to-date developing activities of ODS steels were mainly focused on strength and creep properties. However, other properties like irradiation resistance, corrosion resistance, fracture toughness, fatigue are also crucial for their applications. In this work, fracture behavior of 9%Cr ODS steels with no strengthening phase and with different composition of strengthening phase based on yttrium and aluminum oxides developed at IPM was evaluated. Fracture toughness testing was done in the temperature range from-100 to +550°C. All three variants of the steel demonstrated fully ductile behavior from the temperature -50°C. The results showed that presence of strengthening phase decreases fracture toughness and this effect is proportional to the effect of strengthening. The fractography analysis revealed no clear evidenceof fine strengthening phase on the fracture micromechanism. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2018
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