Electrical resistivity recovery spectra were measured at 77 to 200K, in specimens which had been irradiated with 2.5MeV electrons at 77K. Both oversized Mo, and undersized Si, solutes suppressed the IE recovery stage of pure Fe. Slightly oversized Cr, and undersized P or Be, solutes produced new recovery stages below IE. The positions of these stages shifted towards lower temperatures with increasing solute concentration. The stages were attributed to the migration and annihilation of mixed dumb-bells which formed mainly in stage ID. Such recovery spectra had not been observed in face-centered cubic alloys, and this suggested that the mixed dumb-bell in these alloys had a higher mobility than the self-interstitial.

Interaction of Solutes with Irradiation-Induced Defects of Electron-Irradiated Ductile Iron Alloys. H.Abe, E.Kuramoto: Journal of Nuclear Materials, 1999, 271-272, 209-13