Results of Charpy V-Notch Impact Testing of Structural Steel Specimens Irradiated at about 30 deg C to 1 x 10(16) Neutrons/cm(2) in a Commercial Reactor Cavity

摘要

A capsule containing Charpy V-notch (CVN) and mini-tensile specimens was irradiated in the cavity of a commercial nuclear power plant. The capsule included six CVN impact specimens of archival High Flux Isotope Reactor A212 grade B ferritic steel and five CVN impact specimens of a well-studied A36 structural steel. This irradiation was part of the ongoing study of neutron-induced damage effects at the low temperature and flux experienced by reactor supports. The exposure of these specimens produced no significant irradation-induced embrittlement. Of interest were the data on unirradiated specimens in the L-T orientation machined from a single plate of A36 structural steel, which is the same specification for the strucutral steel used in some reactor supports.