Saturation of Proton-Induced Swelling in AISI 316
There is some evidence which suggests that void swelling may not increase continuously with increasing irradiation but may saturate at a level dependent on irradiation conditions, helium/dpa level or artifacts of the simulation such as the presence of injected interstitials. An experiment was therefore performed to determine the saturation level of swelling of annealed AISI 316 at 625°C in the absence of helium and injected interstitials. Using 140 keV protons and step-height measurements it was found that saturation did not occur until 260% swelling was achieved at ~ 600 dpa. Prior to saturation the swelling curve exhibited the anticipated bilinear form with a steady state swelling rate of 0.64%/dpa based on a 20 eV threshold energy.
A. S. Kumar and F. A. Garner, "Saturation of Proton-Induced Swelling in AISI 316," Journal of Nuclear Materials, Elsevier, Jan 1983.
The definitive version is available at https://doi.org/10.1016/0022-3115(83)90029-6
Mining and Nuclear Engineering
Article - Journal
© 1983 Elsevier, All rights reserved.