TY  - JOUR
AU  - Casalegno, Valentina
AU  - Perero, Sergio
AU  - Girman, Vladimír
AU  - Sedlák, Richard
AU  - Scarpellini, Alice
AU  - Dorow-Gerspach, Daniel
AU  - Heuer, Simon
AU  - Ferraris, Monica
TI  - W/Fe co-sputtered layers for tungsten to steel joints
JO  - Nuclear materials and energy
VL  - 35
SN  - 2352-1791
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2023-02327
SP  - 101421 -
PY  - 2023
AB  - This work reports about preparation of W/Fe co-sputtered layers between tungsten and steel in order to ease their coefficient of thermal expansion mismatch.Iron and tungsten have been gradually co-sputtered on W tiles with real time deposition parameters changing to obtain a graded interlayer: SEM, EDS, XPS, HR-TEM have been used to characterize the W/Fe co-sputtered layer.W tiles co-sputtered with the W/Fe layers have been hot pressed to steel tiles: morphology and mechanical strength have been investigated for joints with and without W/Fe co-sputtered layer.Lap-shear tests in compression at room temperature have been made on hot pressed W/steel joints with and without W/Fe co-sputtered layer, showing a different behaviour.High flux test on joints with and without W/Fe co-sputtered layer are reported and discussed. The mechanical test results of manufactured joints are in good accordance with high heat flux test results, showing that the behaviour of hot-pressed joints with W/Fe co-sputtered layer was slightly worse if compared to joints without co-sputtered layer at the interface.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001009154300001
DO  - DOI:10.1016/j.nme.2023.101421
UR  - https://juser.fz-juelich.de/record/1008401
ER  -