Kinetics of Radiation-Induced Segregation in Ternary Alloys
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.
N. Q. Lam et al., "Kinetics of Radiation-Induced Segregation in Ternary Alloys," ASTM Special Technical Publication, American Technical Publishers, Jan 1982.
Mining and Nuclear Engineering
© 1982 American Technical Publishers, All rights reserved.
01 Jan 1982