%0 Journal Article
%A Bachurina, Diana
%A Tan, Xiaoyue
%A Klein, Felix
%A Suchkov, Alexey
%A Litnovsky, Andrey
%A Schmitz, Janina
%A Gonzalez-Julian, Jesus
%A Bram, Martin
%A Coenen, Jan Willem
%A Wu, Yu-Cheng
%A Linsmeier, Christian
%T Self-passivating smart tungsten alloys for DEMO: a progress in joining and upscale for a first wall mockup
%J Tungsten
%V 3
%N 1
%@ 2661-8028
%C Singapore
%I Springer Singapore
%M FZJ-2021-01779
%P 101–115
%D 2021
%X Self-passivating, so-called smart alloys are under development for a future fusion power plant. These alloys containing tungsten, chromium and yttrium must possess an acceptable plasma performance during a regular plasma operation of a power plant and demonstrate the suppression of non-desirable oxidation of tungsten in case of an accident. The up-scaling of the bulk smart alloys to the reactor-relevant sizes has begun and the first samples with a diameter of 50 mm and thickness of 5 mm became available. The samples feature high relative density of above 99% and good homogeneity. With production of bulk samples, the research program on joining the smart alloy to the structural material was initiated. In a present study, the novel titanium–zirconium–beryllium braze was applied successfully to join the smart alloy to the Rusfer-reduced-activation steel. The braze has survived at least a hundred of cyclic thermal excursions in the range of 300–600 °C without mechanical destruction.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000879799900009
%R 10.1007/s42864-021-00079-5
%U https://juser.fz-juelich.de/record/891859