Conditions Extrêmes et Matériaux : Haute Température et Irradiation
CEMHTI - UPR3079 CNRS

utilisateur non identifié  |   Login

View CEMHTI Publication

Return to publication search...
2021

ACL
doi

T.Echániz, I.González de Arrieta, A.Gil-Muñoz, J.Fernández-Pereda, R.Fuente, M.Klimenkov, G.A.López, 'Infrared emissivity of reduced-activation Eurofer 97 for fusion reactor applications', J. Nucl. Mater. 549 152907 (2021) doi:10.1016/j.jnucmat.2021.152907

The spectral directional emissivity of Eurofer 97 is reported between 423 and 873 K for two surface states. Total hemispherical data has been calculated by numerical integration of the measured data and compared to the theoretical predictions based on electrical resistivity data. A semi-quantitative agreement between measured emissivity data and predicted values for Eurofer 97 and similar steels (Grade 91, F82H) has been found, despite larger differences in their resistivities. The reported values for the polished surface are shown to be comparable to data for Grade 91 steel and lower than the usually assumed ones in thermal budget modelling of the DEMO tokamak and other nuclear applications of this alloy.