Influence of cold work to increase swelling of pure iron irradiated in theBR-10 reactor to similar to 6 and similar to 25 dpa at similar to 400 degrees C

Irradiation of pure iron in several starting conditions at 400 degreesC has been conducted in the BR-10 fast reactor. Contrary to expectations, cold w orking appears to significantly accelerate the onset of void swelling. When compared to a similar experiment conducted in this reactor at the same tim e, it appears that iron experiences a rather long transient duration before the onset of steady-state swelling. The transient appears to be shortened by both cold-working and lower atomic displacement rates. (C) 2000 Elsevier Science B.V. All rights reserved.