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Advanced self-passivating alloys for an application under extreme conditions
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SYSNO ASEP 0546979 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Advanced self-passivating alloys for an application under extreme conditions Tvůrce(i) Litnovsky, A. (DE)
Klein, F. (DE)
Tan, X. (US)
Ertmer, J. (BE)
Coenen, J.W. (DE)
Linsmeier, Ch. (DE)
Gonzalez-Julian, J. (DE)
Bram, M. (DE)
Povstugar, I. (DE)
Morgan, T. (NL)
Gasparyan, A.A. (RU)
Suchkov, A. (RU)
Bachurina, D. (RU)
Nguyen-Manh, D. (GB)
Gilbert, M. (GB)
Sobieraj, D. (PL)
Wróbel, J. S. (PL)
Tejado, E. (ES)
Matějíček, Jiří (UFP-V) RID, ORCID
Zozomová-Lihová, J. (SK)
Benz, H. U. (DE)
Bittner, P. (DE)
Reuban, A. (DE)Celkový počet autorů 23 Číslo článku 1255 Zdroj.dok. Metals. - : MDPI - ISSN 2075-4701
Roč. 11, č. 8 (2021)Poč.str. 18 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova DEMO safety ; Erosion resistance ; Fast ; Self-passivating tungsten alloys ; Suppressed oxidation Vědní obor RIV JG - Hutnictví, kovové materiály Obor OECD Materials engineering Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 000689589300001 EID SCOPUS 85112664455 DOI https://doi.org/10.3390/met11081255 Anotace Self-passivating Metal Alloys with Reduced Thermo-oxidation (SMART) are under development for the primary application as plasma-facing materials for the first wall in a fusion DEMOnstration power plant (DEMO). SMART materials must combine suppressed oxidation in case of an accident and an acceptable plasma performance during the regular operation of the future power plant. Modern SMART materials contain chromium as a passivating element, yttrium as an active element and a tungsten base matrix. An overview of the research and development program on SMART materials is presented and all major areas of the structured R&D are explained. Attaining desired performance under accident and regular plasma conditions are vital elements of an R&D program addressing the viability of the entire concept. An impressive more than 104-fold suppression of oxidation, accompanied with more than 40-fold suppression of sublimation of tungsten oxide, was attained during an experimentally reproduced accident event with a duration of 10 days. The sputtering resistance under DEMO-relevant plasma conditions of SMART materials and pure tungsten was identical for conditions corresponding to nearly 20 days of continuous DEMO operation. Fundamental understanding of physics processes undergone in the SMART material is gained via fundamental studies comprising dedicated modeling and experiments. The important role of yttrium, stabilizing the SMART alloy microstructure and improving self-passivating behavior, is under investigation. Activities toward industrial up-scale have begun, comprising the first mechanical alloying with an industrial partner and the sintering of a bulk SMART alloy sample with dimensions of 100 mm × 100 mm × 7 mm using an industrial facility. These achievements open the way to further expansion of the SMART technology toward its application in fusion and potentially in other renewable energy sources such as concentrated solar power stations. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2075-4701/11/8/1255
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