Void Swelling and Microstructure of Austenitic Stainless Steels Irradiated in the BOR - 60 Reactor [electronic resource].
- Published
- Washington, D.C. : United States. Office of the Assistant Secretary for Nuclear Energy, 2012.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy - Physical Description
- 79 pages : digital, PDF file
- Additional Creators
- Argonne National Laboratory, United States. Office of the Assistant Secretary for Nuclear Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- As nuclear power plants age and neutron fluence increases, detrimental effects resulting from radiation damage have become an increasingly important issue for the operational safety and structural integrity of core internal components. In this study, irradiated specimens of reactor core internal components were characterized by transmission electron microscopy. The specimens had been irradiated to 5.5-45 dpa in the BOR-60 reactor at a dose rate close to 10-6 dpa/s and temperature of about 320°C. No voids were observed in the austenitic stainless steels and nickel alloys at all doses. Despite the possibility that fine voids below the TEM resolution limit may be present, it was clear that void swelling was insignificant in all examined alloys up to 45 dpa. Irradiated microstructures of the studied alloys were dominated by a high density of Frank loops. The mean size and density of the Frank loops varied from one material to another, but saturated with increasing dose above ~10 dpa. While no irradiation-induced precipitations were present below 24.5 dpa, fine precipitates were evident in several alloys at 45 dpa.
- Report Numbers
- E 1.99:nureg/cr--7128
nureg/cr--7128 - Subject(s)
- Note
- Published through SciTech Connect.
11/01/2012.
"nureg/cr--7128"
"118704"
Chen, Y. [Argonne National Lab. (ANL), Argonne, IL (United States)]; Yang, Yong [Argonne National Lab. (ANL), Argonne, IL (United States)]; Huang, Yina [Argonne National Lab. (ANL), Argonne, IL (United States)]; Allen, T. [Argonne National Lab. (ANL), Argonne, IL (United States)]; Alexandreanu, B. [Argonne National Lab. (ANL), Argonne, IL (United States)]; Natesan, K. [Argonne National Lab. (ANL), Argonne, IL (United States)]. - Funding Information
- AC02-06CH11357
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