TY  - JOUR
AU  - Pintsuk, G.
AU  - Missirlian, M.
AU  - Luo, G.-N.
AU  - Li, Q.
AU  - Wang, W.
AU  - Guilhem, D.
AU  - Bucalossi, J.
TI  - High heat flux testing of newly developed tungsten components for WEST
JO  - Fusion engineering and design
VL  - 173
SN  - 0920-3796
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2021-05637
SP  - 112835 -
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000709527000003
DO  - DOI:10.1016/j.fusengdes.2021.112835
UR  - https://juser.fz-juelich.de/record/904067
ER  -