Post-Irradiation Examination of High Fluence Baffle-Former Bolts Retrieved from a Westinghouse Two-Loop Downflow Type PWR

Technical Report · Wed Jul 31 00:00:00 EDT 2019

DOI:https://doi.org/10.2172/1557483· OSTI ID:1557483

Chen, Xiang (Frank)  ^[1]; Chen, Tianyi  ^[1]; Parish, Chad M.  ^[1]; Graening, Tim ^[1]; Sokolov, Mikhail A.  ^[1]; Leonard, Keith J. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

As one of the pressurized water reactor (PWR) internal components, baffle-former bolts (BFBs) are subjected to significant mechanical stress and neutron irradiation from the reactor core during the plant operation. Over the long operation period, these conditions lead to potential degradation and reduced load-carrying capacity of the bolts. In support of evaluating long-term operational performance of materials used in core internal components, the Oak Ridge National Laboratory (ORNL), through the Department of Energy (DOE), Light Water Reactor Sustainability (LWRS) Program, Materials Research Pathway (MRP) has harvested two high fluence BFBs from a commercial Westinghouse two-loop downflow type PWR.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1557483
• Report Number(s): ORNL/TM-2019/1251; TRN: US2100427
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS