Effects of neutron irradiation on physical and mechanical properties of Mo-Re alloys

The effects of neutron irradiation on mechanical strength, plasticity and electric conductivity of Mo-Re alloys are presented. Pure Mo and Mo-0.5%Re to Mo-30%Re alloys were studied. Samples were irradiated in the reactor SM-2 ( ~ 5 × 10 21 n/cm 2, T irr ~ 240–330°C). Irradiation at 300°C indicates t...

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Bibliographic Details
Published in:Journal of nuclear materials 1992-09, Vol.191, p.426-429
Main Authors: Fabritsiev, S.A., Gosudarenkova, V.A., Potapova, V.A., Rybin, V.V., Kosachev, L.S., Chakin, V.P., Pokrovsky, A.S., Barabash, V.R.
Format: Article
Language:English
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Summary:The effects of neutron irradiation on mechanical strength, plasticity and electric conductivity of Mo-Re alloys are presented. Pure Mo and Mo-0.5%Re to Mo-30%Re alloys were studied. Samples were irradiated in the reactor SM-2 ( ~ 5 × 10 21 n/cm 2, T irr ~ 240–330°C). Irradiation at 300°C indicates that the radiation embrittlement results in reduced strength and ductility characteristics of Mo-Re alloys. Measurement of electric resistance shows that low-temperature irradiation of Mo-alloys results in 20–30% reduced conductivity. SEM studies of fracture surfaces show that after irradiation brittle intergranular fracture takes places that correlates with an abrupt reduction of strength.
ISSN:0022-3115
1873-4820
DOI:10.1016/S0022-3115(09)80080-9