Response of reduced activation ferritic steels to high-fluence ion-irradiation

H. Tanigawa; M. Ando; Y. Katoh; T. Hirose; H. Sakasegawa; S. Jitsukawa; A. Kohyama; T. Iwai

doi:10.1016/S0022-3115(01)00633-X

Response of reduced activation ferritic steels to high-fluence ion-irradiation

H. Tanigawa, M. Ando, Y. Katoh, T. Hirose, H. Sakasegawa, S. Jitsukawa, A. Kohyama, T. Iwai

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Effects of high-fluence irradiation in fusion-relevant helium production condition on defect cluster formation and swelling of reduced activation ferritic/martensitic steels (RAFs), JLF-1 (Fe-9Cr-2W-V-Ta) and F82H (Fe-8Cr-2W-V-Ta), have been investigated. Dual-ion (nickel plus helium ions) irradiation using electrostatic accelerators was adopted to simulate fusion neutron environment. The irradiation has been carried out up to a damage level of 100 displacement per atom (dpa) at around 723 K, at the HIT facility in the University of Tokyo. Thin foils for transmission electron microscopy (TEM) were prepared with a focused ion beam (FIB) microsampling system. The system enabled not only the broad cross-sectional TEM observation, but also the detailed study of irradiated microstructure, since unfavorable effects of ferromagnetism of a ferritic steel specimen were completely suppressed with this system by sampling a small volume in interests from the irradiated material.

Original language	English
Pages (from-to)	279-284
Number of pages	6
Journal	Journal of Nuclear Materials
Volume	297
Issue number	3
DOIs	https://doi.org/10.1016/S0022-3115(01)00633-X
State	Published - Sep 2001
Externally published	Yes

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title = "Response of reduced activation ferritic steels to high-fluence ion-irradiation",

abstract = "Effects of high-fluence irradiation in fusion-relevant helium production condition on defect cluster formation and swelling of reduced activation ferritic/martensitic steels (RAFs), JLF-1 (Fe-9Cr-2W-V-Ta) and F82H (Fe-8Cr-2W-V-Ta), have been investigated. Dual-ion (nickel plus helium ions) irradiation using electrostatic accelerators was adopted to simulate fusion neutron environment. The irradiation has been carried out up to a damage level of 100 displacement per atom (dpa) at around 723 K, at the HIT facility in the University of Tokyo. Thin foils for transmission electron microscopy (TEM) were prepared with a focused ion beam (FIB) microsampling system. The system enabled not only the broad cross-sectional TEM observation, but also the detailed study of irradiated microstructure, since unfavorable effects of ferromagnetism of a ferritic steel specimen were completely suppressed with this system by sampling a small volume in interests from the irradiated material.",

author = "H. Tanigawa and M. Ando and Y. Katoh and T. Hirose and H. Sakasegawa and S. Jitsukawa and A. Kohyama and T. Iwai",

year = "2001",

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doi = "10.1016/S0022-3115(01)00633-X",

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TY - JOUR

T1 - Response of reduced activation ferritic steels to high-fluence ion-irradiation

AU - Tanigawa, H.

AU - Ando, M.

AU - Katoh, Y.

AU - Hirose, T.

AU - Sakasegawa, H.

AU - Jitsukawa, S.

AU - Kohyama, A.

AU - Iwai, T.

PY - 2001/9

Y1 - 2001/9

N2 - Effects of high-fluence irradiation in fusion-relevant helium production condition on defect cluster formation and swelling of reduced activation ferritic/martensitic steels (RAFs), JLF-1 (Fe-9Cr-2W-V-Ta) and F82H (Fe-8Cr-2W-V-Ta), have been investigated. Dual-ion (nickel plus helium ions) irradiation using electrostatic accelerators was adopted to simulate fusion neutron environment. The irradiation has been carried out up to a damage level of 100 displacement per atom (dpa) at around 723 K, at the HIT facility in the University of Tokyo. Thin foils for transmission electron microscopy (TEM) were prepared with a focused ion beam (FIB) microsampling system. The system enabled not only the broad cross-sectional TEM observation, but also the detailed study of irradiated microstructure, since unfavorable effects of ferromagnetism of a ferritic steel specimen were completely suppressed with this system by sampling a small volume in interests from the irradiated material.

AB - Effects of high-fluence irradiation in fusion-relevant helium production condition on defect cluster formation and swelling of reduced activation ferritic/martensitic steels (RAFs), JLF-1 (Fe-9Cr-2W-V-Ta) and F82H (Fe-8Cr-2W-V-Ta), have been investigated. Dual-ion (nickel plus helium ions) irradiation using electrostatic accelerators was adopted to simulate fusion neutron environment. The irradiation has been carried out up to a damage level of 100 displacement per atom (dpa) at around 723 K, at the HIT facility in the University of Tokyo. Thin foils for transmission electron microscopy (TEM) were prepared with a focused ion beam (FIB) microsampling system. The system enabled not only the broad cross-sectional TEM observation, but also the detailed study of irradiated microstructure, since unfavorable effects of ferromagnetism of a ferritic steel specimen were completely suppressed with this system by sampling a small volume in interests from the irradiated material.

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JF - Journal of Nuclear Materials

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ER -

Response of reduced activation ferritic steels to high-fluence ion-irradiation

Abstract

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