Creep studies on U–7%Zr, U–7%Nb and U rich U–Nb–Zr alloys

Creep behavior of U–7%Zr, U–5%Zr–2%Nb, U–3.5%Zr–3.5%Nb, U–2%Zr–5%Nb, U–7%Nb alloys (composition in wt.%) was investigated by the impression creep technique at 630 and 700°C at a stress of 22.2MPa. Creep rate was found to be two orders lower in the binary U–7%Nb than the U–7%Zr alloy. In ternary U–Nb...

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Bibliographic Details
Published in:Journal of nuclear materials 2013-01, Vol.432 (1-3), p.20-22
Main Authors: Ghoshal, Kaushik, Kutty, T.R.G., Mishra, Sudhir, Kumar, Arun
Format: Article
Language:English
Subjects:
Alloys
Applied sciences
Controled nuclear fusion plants
Creep (materials)
Creep rate
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Impression creep
Installations for energy generation and conversion: thermal and electrical energy
Niobium
Nuclear fuels
Stresses
Ternary alloys
Uranium base alloys
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Summary:Creep behavior of U–7%Zr, U–5%Zr–2%Nb, U–3.5%Zr–3.5%Nb, U–2%Zr–5%Nb, U–7%Nb alloys (composition in wt.%) was investigated by the impression creep technique at 630 and 700°C at a stress of 22.2MPa. Creep rate was found to be two orders lower in the binary U–7%Nb than the U–7%Zr alloy. In ternary U–Nb–Zr alloys, the creep rate was found decreasing drastically with the increase in Nb content.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2012.08.007