Porter, Douglas L.
Metallurgist, Argonne National Laboratory, Falls, ID
Wood, Elon L.
Scientific associate, Argonne National Laboratory, Falls, ID
Garner, Frank A.
Staff scientist, Pacific Northwest Laboratory, Richland, WA
Pages: 19 Published: Jan 1990
A comprehensive creep experiment on AISI 316 stainless steel involving irradiation at ∼400°C to 130 dpa has been completed. The influence of material and environmental variables on the creep and swelling of this steel at ∼400°C is shown to have many similarities to the behavior exhibited in an earlier experiment conducted at ∼550°C, but significant differences are also apparent. These arise because the 400°C experiment was clearly conducted in a regime dominated by the kinetics of point defect recombination, whereas the 550°C experiment was conducted in the sink-dominated regime. At 400°C, it is also shown that severe embrittlement arises concurrent with ∼10% swelling, requiring careful handling of test specimens and structural assemblies at room temperature.
316 stainless steel, neutron irradiation, irradiation creep, void swelling, embrittlement, high fluence
Paper ID: STP49474S