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Performance of Sc-Y-ODS variant of Eurofer steel in stagnant PbLi at 600 C
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SYSNO ASEP 0570262 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Performance of Sc-Y-ODS variant of Eurofer steel in stagnant PbLi at 600 C Author(s) Hojná, A. (CZ)
Pazderova, M. (CZ)
Rozumová, L. (CZ)
Vít, J. (CZ)
Hadraba, Hynek (UFM-A) RID, ORCID
Stratil, Luděk (UFM-A) ORCID
Čížek, Jan (UFP-V) ORCIDNumber of authors 7 Article number 154227 Source Title Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115
Roč. 575, MAR (2023)Number of pages 13 s. Language eng - English Country NL - Netherlands Keywords Fusion ; Liquid leadlithium ; Ferritic-martensitic steel ; Oxide dispersionstrengthened steel ; Corrosion ; Microstructure ; Mechanical behavior Subject RIV JG - Metallurgy OECD category Materials engineering Subject RIV - cooperation Institute of Plasma Physics - Industrial Processing R&D Projects GA20-20873S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 ; UFP-V - RVO:61389021 UT WOS 000923597300001 EID SCOPUS 85145777762 DOI 10.1016/j.jnucmat.2022.154227 Annotation This paper represents a part of the research of structural materials for fusion systems. The performance of a conventionally formed Eurofer-97 steel and its Sc-Y-ODS variant developed by our group was assessed in a stagnant liquid PbLi environment. The experiments were performed at 60 0 degrees C for 50 0 and 10 0 0 hours, and the subsequent microscopical investigation identified a solution-based attack as the dominant corro-sion damage of both materials. The metal loss of the conventional Eurofer-97 steel was 66.2 pm after 10 0 0 h exposure, corresponding to a rate of 580 pm/year. In contrast, the ODS Eurofer variant strength-ened with various fine Sc-Y complex oxides showed a 70% lower corrosion damage, mainly owing to formation of a Sc-Y-rich Pb surface layer. To understand the degradation process in more detail, both materials were characterized before and after the PbLi exposure in terms of their microstructures and mechanical behavior including hardness, tensile, impact and static fracture toughness tests.(c) 2022 Elsevier B.V. All rights reserved. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S0022311522007061?via%3Dihub
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