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PTA DEPOSITION OF W+CU COMPOSITES FOR FUSION REACTORS

1 MATĚJÍČEK Jiří
Co-authors:
2 VOSÁHLO Jan 2 ROHAN Pavel
Institutions:
1 Institute of Plasma Physics of the Czech Academy of Sciences, Prague, Czech Republic, EU, matejicek@ipp.cas.cz
2 Faculty of Mechanical Engineering, Czech Technical University in Prague, Czech Republic, EU, h.vosahlo@seznam.cz, Pavel.Rohan@fs.cvut.cz
Conference:
30th Anniversary International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 26 - 28, 2021
Proceedings:
Proceedings 30th Anniversary International Conference on Metallurgy and Materials
Pages:
1013-1022
ISBN:
978-80-87294-99-4
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2021.4249
Published:
15th September 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
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Abstract

Tungsten-based materials are the most prospective candidates for plasma-facing components of future fusion devices, such as ITER and DEMO. For joining of the tungsten armor to the cooling or structural parts, composites and graded layers can be used as stress-relieving interlayers.This work presents a feasibility study of W+Cu composites preparation by plasma transferred arc (PTA) cladding on tungsten substrates. Basic optimization of the process was carried out to achieve dense and well bonded layers. Formation of a functionally graded material (FGM) was also attempted. The structure, compositional profiles and fracture surfaces of the claddings prepared at different conditions were characterized.

Keywords: Tungsten-copper composites, plasma transferred arc cladding, fusion materials

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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