Abstract
Three zirconium specimens, one with 952 appm Ti, one with 1352 appm Sn, and one with 917 appm Au, were irradiated at 4.2 K with 14.8 MeV neutrons to an average fluence of 3.5 × 10 21 n/m 2 . Results show that the presence of any of these solutes suppresses initial damage production when compared to unalloyed zirconium. Furthermore, these solutes also eliminate the pronounced curvature in the damage-rate curve found for pure zirconium. Comparison with other studies suggests that recoil energy plays an important role in damage production, a feature not found in cubic metals. Annealing data indicate that the addition of Ti or Au reduces interstitial recovery, whereas Sn has little influence on this stage. The magnitude of recovery by vacancy motion is suppressed by Sn or Au. However, the effect of Ti is to lower the peak temperature of this stage.
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