Ni-Doped F82H to Investigate He Effects in HFIR Irradiation
- 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, Vol. 44, Issue 1; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); ISSN 1536-1055
- Country of Publication:
- United States
- Language:
- English
Similar Records
He Transport and Fate of Tempered Martensitic Steels: Summary of Recent TEM Observations
Void formation and helium effects in 9Cr-1MoVNb and 12Cr-1MoVW steels irradiated in HFIR and FFTF at 400/degree/C