The 1-dimensional motion of interstitial-type dislocation loops in Fe–9Cr ferritic alloy was studied by means of in situ transmission electron microscopy. Loop motion was examined under 1000kV high-energy electron irradiation at 110 to 680K, and during annealing at 295 to 960K; without introducing additional displacements after irradiation at 110K. The results were compared with those for pure body-centered cubic Fe, and the effects of Cr upon the motion of loops were deduced. Under high-energy electron irradiation, the motion frequency of loops was only slightly reduced by Cr. During annealing, the motion frequency of loops in Fe–9Cr was significantly reduced by Cr.

Effects of Chromium on the One-Dimensional Motion of Interstitial-Type Dislocation Loops in Iron. K.Arakawa, M.Hatanaka, H.Mori, K.Ono: Journal of Nuclear Materials, 2004, 329-333[2], 1194-8