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Assessment of mechanical properties of SPS-produced tungsten including effect of neutron irradiation
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SYSNO ASEP 0522317 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Assessment of mechanical properties of SPS-produced tungsten including effect of neutron irradiation Author(s) Terentyev, D. (BE)
Vilémová, Monika (UFP-V) RID, ORCID
Yin, C. (BE)
Veverka, Jakub (UFP-V) ORCID
Dubinko, A. (BE)
Matějíček, Jiří (UFP-V) RID, ORCIDNumber of authors 6 Article number 105207 Source Title International Journal of Refractory Metals & Hard Materials. - : Elsevier - ISSN 0263-4368
Roč. 89, June (2020)Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords Fusion ; Mechanical properties ; Neutron irradiation ; Tungsten OECD category Materials engineering R&D Projects GA17-23154S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFP-V - RVO:61389021 EID SCOPUS 85078702169 DOI 10.1016/j.ijrmhm.2020.105207 Annotation Production and supply of tungsten for the first wall fusion application is becoming an important aspect given the progress of ITER construction. Exploration of advanced routes alternative to the conventional powder metallurgy is currently undertaken. In this work we have assessed a potential of the spark plasma sintering (SPS) production route to deliver well controlled microstructure, chemistry and mechanical properties of bulk tungsten as a first step. SPS-produced tungsten was sintered at 2000 °C and was characterized in terms of mechanical properties, namely: tensile, three point bending and fracture toughness data in the temperaure range of 250–600 °C. Then, neutron irradiation was performed at 600 °C and the change of the fracture toughness was measured after irradiation together with the characterization of the fracture surface. The results are compared with those obtained for the commerically produced swaged tungsten irradiated and tested in equivalent conditions. The obtained results show that SPS technology offers the production of bulk tungsten with a good potential for further optimization (by e.g. swaging/rolling). Neutron irradiation causes the reduction of the fracture toughness comparable to the one induced in the commercially produced tungsten. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address https://www.sciencedirect.com/science/article/pii/S0263436819305505?via%3Dihub
Number of the records: 1