TY - JOUR
T1 - Tritium Permeation through Ce-ODS Steel
AU - Urabe, Yudai
AU - Hashizume, Kenichi
AU - Otsuka, Teppei
AU - Sakamoto, Kan
N1 - Funding Information:
The authors thank the Central Institute of Radioisotope Science and Safety and the Center of Advanced Instrumental Analysis, Kyushu University, for the tritium permeation experiment and XRD measurement, respectively.
Publisher Copyright:
© 2020, © 2020 American Nuclear Society.
PY - 2020/5/18
Y1 - 2020/5/18
N2 - Tritium permeability through FeCrAl-oxide-dispersion-strengthened (ODS) ferritic steel containing Ce oxides (Ce-ODS steel) was measured at temperatures ranging from 373 to 623 K. Some of the Ce-ODS steel specimens were oxidized by means of an autoclave treatment at 563 K for 30 days to examine the effect of the surface oxidized layer on the tritium permeability. The tritium permeability obtained for nonoxidized specimen was consistent with that for other common ferritic steels and FeCrAl ferritic steel. For the oxidized specimen, the surface oxide layer suppressed the apparent tritium permeability. The permeability for the oxidized specimen also depended on the atmosphere of the downstream in the permeation experiment: An atmosphere containing water vapor yielded lower tritium permeability compared with a reductive one.
AB - Tritium permeability through FeCrAl-oxide-dispersion-strengthened (ODS) ferritic steel containing Ce oxides (Ce-ODS steel) was measured at temperatures ranging from 373 to 623 K. Some of the Ce-ODS steel specimens were oxidized by means of an autoclave treatment at 563 K for 30 days to examine the effect of the surface oxidized layer on the tritium permeability. The tritium permeability obtained for nonoxidized specimen was consistent with that for other common ferritic steels and FeCrAl ferritic steel. For the oxidized specimen, the surface oxide layer suppressed the apparent tritium permeability. The permeability for the oxidized specimen also depended on the atmosphere of the downstream in the permeation experiment: An atmosphere containing water vapor yielded lower tritium permeability compared with a reductive one.
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U2 - 10.1080/15361055.2020.1712992
DO - 10.1080/15361055.2020.1712992
M3 - Article
AN - SCOPUS:85083676128
VL - 76
SP - 392
EP - 397
JO - Fusion Science and Technology
JF - Fusion Science and Technology
SN - 1536-1055
IS - 4
ER -