Ni-Doped F82H to Investigate He Effects in HFIR Irradiation

Journal Article · Tue Jul 15 04:00:00 EDT 2003 · Fusion Science and Technology

OSTI ID:20849513

Sawai, Tomotsugu; Ando, Masami; Wakai, Eiichi; Shiba, Kiyoyuki; Jitsukawa, Shiro ^[1]

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1. Japan Atomic Energy Research Institute (Japan)

Nickel-doped F82H alloys have been fabricated to simulate He production due to fusion neutrons in fission reactor irradiation. 1.2Ni and 1.4Ni alloys were tempered at 750 deg. C without re-austenitisation. Expected He production in 1.4% Ni alloy irradiated in HFIR target position is about 400 appm at 40 dpa. Results of tensile and Charpy impact tests of these alloys show that their mechanical properties are similar to those of original F82H, although 0.2% proof stresses of Ni-doped alloys were 50 Mpa smaller than that of F82H. Small amount of two isotope tailored alloys including 1.4wt% Ni are also prepared using 58Ni and 60Ni. Chemical analyses and Charpy impact tests of the mock-up heat suggest that the fabrication of these small heats was successful.

• OSTI ID: 20849513
• Journal Information: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 1 Vol. 44; ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATOMIC DISPLACEMENTS
CHEMICAL ANALYSIS
DOPED MATERIALS
FABRICATION
IRRADIATION
MECHANICAL PROPERTIES
NEUTRONS
NICKEL 58
NICKEL 60
NICKEL ALLOYS
STRESSES
THERMONUCLEAR REACTOR MATERIALS