The duration of the transient regime of neutron-induced swelling in annealed AISI 304L at 400/sup 0/C is sensitive to both stress and displacement rate variations. The simultaneous application of both variables exerts a synergistic effect on the transient regime. The duration of this regime cannot be reduced below a required intrinsic exposure of approx. 10 dpa, however, which has been found to be characteristic of all Fe-Ni-Cr austenitic alloys. This is four times larger than that currently assumed in the stress-affected swelling equation for 20% cold-worked AISI 316.
DOE contract number: AC06-76FF02170 OSTI Identifier 5048762 Research organization: Argonne National Lab., Idaho Falls, ID (USA). Research organization: Hanford Engineering Development Lab., Richland, WA (USA).