Study of the thermal stability of nanoparticle distributions in an oxide dispersion strengthened (ODS) ferritic alloys

Oxide dispersion strengthened (ODS) ferritic alloys have a vast applicability due to their excellent mechanical resistance at high temperature. The precipitate dispersion of the nanoparticles in the matrix has a great effect on the creep properties of the material; in order to study the kinetics of...

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Bibliographic Details
Published in:Journal of nuclear materials 2012-09, Vol.428 (1-3), p.154-159
Main Authors: Zhong, S.Y., Ribis, J., Klosek, V., de Carlan, Y., Lochet, N., Ji, V., Mathon, M.H.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Dispersion hardening alloys
Dispersions
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Ferrous alloys
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nanomaterials
Nanoparticles
Nanostructure
Nuclear fuels
Oxides
Precipitates
Precipitation
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Summary:Oxide dispersion strengthened (ODS) ferritic alloys have a vast applicability due to their excellent mechanical resistance at high temperature. The precipitate dispersion of the nanoparticles in the matrix has a great effect on the creep properties of the material; in order to study the kinetics of precipitation of Y2Ti2O7 nanoparticles in Fe–14Cr1W ODS alloy, annealing experiments were taken at different temperatures (1050°C–1400°C) and for different times (0.5–10h), then these samples were characterized by the small-angle neutron scattering technique (SANS) under magnetic field and TEM investigations and microhardness measurements were performed to gather nanoscopic information about the dispersed oxide particles size.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2011.12.028