The Effects of Yttrium Additions on Void Swelling in Liquid Metal Fast Breeder Reactor Candidate Cladding Alloys.
Abstract
Candidate Liquid Metal Fast Breeder Reactor cladding alloys AL1 (Fe-26% Ni-9% Cr) and AL2 (Fe-35% Ni-12% Cr) without and with the addition of 0.1% yttrium were bombarded by 4 MeV Fe56(2+) ions without and with simultaneous bombardment by 0.4 MeV He4(+) ions. These bombardments were conducted at various irradiation temperatures to determine the effect of yttrium on void swelling. The addition of yttrium decreased peak swelling for 4 MeV Fe56(2+) ion bombarded AL1 and AL2 28% and 20%, respectively. In all cases where similar sample comparisons were made (i.e., undoped with undoped and doped with doped) and where bombardment conditions were similar (i.e., single with single beam and dual with dual beam), AL1 showed less peak swelling than did AL2. Simultaneously implanting helium during heavy-ion bombardment increased peak swelling in undoped and doped AL1 by factors of 2.3 and 2.6, respectively. It was also observed that the coimplantation of helium in undoped and doped AL2 increased peak swelling by factors of 2.0 and 1.3, respectively. No conclusions were drawn with respect to shifts in peak swelling temperatures due to yttrium additions or helium implantations. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 28, 1981
- Accession Number
- ADA098753
Entities
People
- Richard D. Hopson