SANS and TEM study of y2O3 particle distributions in oxide-dispersion strengthened EUROFER martensitic steel for fusion reactors

R. Coppola, M. Klimiankou, R. Lindau, R.P. May, M. Valli

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Abstract

Transmission electron microscopy (TEM) and small-angle neutron scattering (SANS) were used to characterize the microstructure of two variants of oxide-dispersion strengthened (ODS) Eurofer-97 steel (9% CrWVTa), that is being developed for future fusion reactors. More specifically the Y2O3particle size distributions obtained with different Y2O3contents have been characterized, since the mechanical properties are strongly correlated with such features. The SANS measurements have been carried out by the D22 instrument at the High Flux Reactor of the Institut Laue-Langevin, Grenoble. There is a good agreement between TEM histograms and SANS distributions of the Y2O3particles. Furthermore, relevant and unique information is provided by the SANS measurements that reveals particles of size smaller than 1 nm approximately. © 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)-
JournalPhysica B: Condensed Matter
Volume350
Issue number1-3 SUPPL. 1
DOIs
Publication statusPublished - 15 Jul 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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