This title appears in the Scientific Report :
2021
Please use the identifier:
http://hdl.handle.net/2128/27099 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.fusengdes.2021.112272 in citations.
Smart alloys as armor material for DEMO: Overview of properties and joining to structural materials
Smart alloys as armor material for DEMO: Overview of properties and joining to structural materials
Tungsten test is currently the baseline first-wall armor material for a future DEMOnstration power plant. Smart alloys, containing tungsten (W), 11.4 weight (wt) % chromium (Cr), and 0.6 wt% yttrium (Y), aim at achieving passive safety in case of air ingress into the vacuum vessel and a loss-of-cool...
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Personal Name(s): | Klein, Felix (Corresponding author) |
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Litnovsky, Andrey / Tan, Xiaoyue / Gonzalez-Julian, Jesus / Rasinski, Marcin / Linsmeier, Christian / Bram, Martin / Coenen, Jan Willem | |
Contributing Institute: |
Plasmaphysik; IEK-4 |
Published in: | Fusion engineering and design, 166 (2021) S. 112272 - |
Imprint: |
New York, NY [u.a.]
Elsevier
2021
|
DOI: |
10.1016/j.fusengdes.2021.112272 |
Document Type: |
Journal Article |
Research Program: |
Plasma-Wand-Wechselwirkung |
Link: |
Published on 2021-01-30. Available in OpenAccess from 2023-01-30. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.fusengdes.2021.112272 in citations.
Tungsten test is currently the baseline first-wall armor material for a future DEMOnstration power plant. Smart alloys, containing tungsten (W), 11.4 weight (wt) % chromium (Cr), and 0.6 wt% yttrium (Y), aim at achieving passive safety in case of air ingress into the vacuum vessel and a loss-of-coolant accident causing a temperature rise above 1200 K for weeks. In such a case, smart alloys suppress oxidation and sublimation of radioactive W.This publication summarizes several important properties of smart alloys: the suppression of oxidation, the hardness as a function of the microstructure, and potential carbide formation in the presence of carbon (C) impurities. Further, first results on joining them to the EUROFER by field-assisted sintering technology (FAST) without interface layer are presented. In literature, FAST is also known as spark plasma sintering (SPS). A stable joint with an tungsten–iron (W–Fe) diffusion layer of 100 nm at the interface was achieved. The joint survived several heat cycles to 873 K. |