TY  - JOUR
AU  - Weckmann, A.
AU  - Petersson, P.
AU  - Rubel, M.
AU  - Fortuna-Zaleśna, E.
AU  - Zielinski, W.
AU  - Romelczyk-Baishya, B.
AU  - Grigore, E.
AU  - Ruset, C.
AU  - Kreter, A.
TI  - Ageing of structural materials in tokamaks: TEXTOR liner study
JO  - Physica scripta
VL  - T170
SN  - 1402-4896
CY  - Bristol
PB  - IoP Publ.
M1  - FZJ-2017-07928
SP  - 014053 
PY  - 2017
AB  - After the final shut-down of the tokamak TEXTOR, all of its machine parts became accessible for comprehensive studies. This unique opportunity enabled the study of the Inconel 625 liner by a wide range of methods. The aim was to evaluate eventual alteration of surface and bulk characteristics from recessed wall elements that may influence the machine performance. The surface was covered with stratified layers consisting mainly of boron, carbon, oxygen, and in some cases also silicon. Wall conditioning and limiter materials hence predominantly define deposition on the liner. Deposited layers on recessed wall elements reach micrometre thickness within decades, peel off and may contribute to the dust inventory in tokamaks. Deuterium content was about 4,7 at% on average most probably due to wall conditioning with deuterated gas, and very low concentration in the Inconel substrate. Inconel 625 retained its mechanical strength despite 26 years of cyclic heating, stresses and particle bombardment.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000415066700001
DO  - DOI:10.1088/1402-4896/aa8bee
UR  - https://juser.fz-juelich.de/record/840395
ER  -