%0 Journal Article
%A Pintsuk, G.
%A Missirlian, M.
%A Luo, G.-N.
%A Li, Q.
%A Wang, W.
%A Guilhem, D.
%A Bucalossi, J.
%T High heat flux testing of newly developed tungsten components for WEST
%J Fusion engineering and design
%V 173
%@ 0920-3796
%C New York, NY [u.a.]
%I Elsevier
%M FZJ-2021-05637
%P 112835 -
%D 2021
%X In preparation of the production of the actively cooled tungsten targets for the lower divertor of WEST (W -for tungsten- Environment in Steady-state Tokamak), the qualification of suppliers is done by exposing small-scale mock-ups to cyclic high heat flux tests in the electron beam facility JUDITH 1 at Forschungszentrum Jülich. Thereby, the small-scale mock-ups are based on the ITER design, consisting of 7 monoblocks mounted on a CuCrZr cooling tube and connected via a soft Cu-interlayer.The results presented herein focus on the high heat flux test results of two mock-ups produced by AT&M in China. The testing was performed by thermal cycling at 10 MW/m2 and 20 MW/m2 with a maximum of 1200 cycles at 10 MW/m2 followed by 500 cycles at 20 MW/m2 without obvious damage formation.The qualification is supported by subsequent hardness tests and microstructural analyses. The latter focus on local variation of tungsten recrystallization and macro-crack formation and deformation induced changes in the heat sink materials.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000709527000003
%R 10.1016/j.fusengdes.2021.112835
%U https://juser.fz-juelich.de/record/904067