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Qualification by HHF tests of W coatings on Inconel superalloy for COMPASS-U plasma-facing components
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SYSNO ASEP 0616718 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Qualification by HHF tests of W coatings on Inconel superalloy for COMPASS-U plasma-facing components Author(s) Dejarnac, Renaud (UFP-V) RID, ORCID
Matějíček, Jiří (UFP-V) RID, ORCID
Greuner, H. (DE)
Böswirth, B. (DE)
Gerardin, Jonathan (UFP-V) ORCID
Kopeček, Jaromír (FZU-D) RID, ORCID
Kirhetov, Daniil (UFP-V)Number of authors 7 Article number 101841 Source Title Nuclear Materials and Energy. - : Elsevier
Roč. 42, March (2025)Number of pages 15 s. Language eng - English Country NL - Netherlands Keywords COMPASS-U ; PFCs ; tungsten Subject RIV JG - Metallurgy OECD category Materials engineering Subject RIV - cooperation Institute of Physics - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects LM2023045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_019/0000768 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UFP-V - RVO:61389021 ; FZU-D - RVO:68378271 UT WOS 001390782000001 EID SCOPUS 85212073162 DOI https://doi.org/10.1016/j.nme.2024.101841 Annotation Coating Inconel tiles by tungsten is a necessary step towards the full tungsten first wall coverage of the COMPASS-U tokamak. Thin tungsten coatings on Inconel based on physical vapor deposition were successfully produced consequently to a programme of R&D within the COMPASS Upgrade project by three different suppliers. This contribution presents the qualification phase of these tungsten coatings under COMPASS-U relevant high heat fluxes (50 cycles at 10 MW/m2, 100 cycles at 30 MW/m2) in the neutral beam test facility GLADIS. The behavior of the different tungsten coatings during exposures and the main conclusions from the post-mortem analysis are presented. The most important result is that under COMPASS-U relevant heat fluxes, no damage was observed on the front face of all samples, proving the practicability of such coatings for fusion application. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2025 Electronic address https://www.sciencedirect.com/science/article/pii/S2352179124002643?via%3Dihub
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