The study of temperature variation during HFIR irradiation on vanadium

The effects of temperature variation on pure vanadium and vanadium model alloys under neutron irradiation were studied in high flux isotope reactor (HFIR). Pure vanadium and four vanadium model alloys (V–5Cr, V–5Ti, V–4Cr–4Ti, V–4Cr–4Ti–0.1Si) were irradiated under variable temperature conditions at 633/793 K for a total 8 of irradiation cycles. After the irradiation, the microstructure of the samples was compared to those of the same alloys, which were continuously irradiated at 793 K.