Effect of helium on irradiation creep behavior of B-doped F82H irradiated in HFIR

Journal Article · Thu Jul 30 00:00:00 EDT 2015 · Fusion Science and Technology

DOI:https://doi.org/10.13182/FST14-963· OSTI ID:1336590

Ando, M. ^[1]; Nozawa, Takashi ^[1]; Hirose, Takanori ^[1]; Tanigawa, H. ^[1]; Wakai, E. ^[1]; Stoller, Roger E ^[2]; Myers, Janie ^[2]

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1. Japan Atomic Energy Agency (JAEA), Rokkasho-mura (Japan)
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The diameter of pressurized tubes of F82H and B-doped F82H irradiated up to similar to 6 dpa have been measured by a non-contacting laser profilometer. The irradiation creep strains of F82H irradiated at 573 and 673K were almost linearly dependent on the effective stress level for stresses below 260 MPa and 170 MPa, respectively. The creep strain of (BN)-B-10-F82H was similar to that of F82H IEA at each effective stress level except 294 MPa at 573K irradiation. For 673K irradiation, the creep strain of some (BN)-B-10-F82H tubes was larger than that of F82H tubes. However, the generation of similar to 300 appm He did not cause a large difference in the irradiation creep behavior at 6 dpa.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Fusion Energy Sciences (FES); Japan Atomic Energy Agency
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1336590
• Journal Information: Fusion Science and Technology, Vol. 68, Issue 3; ISSN 1536-1055
• Publisher: American Nuclear Society
• Country of Publication: United States
• Language: English