Nuclear Materials and Energy (Dec 2016)

Microstructure and tensile properties of ODS ferritic steels mechanically alloyed with Fe2Y

  • J. Macías-Delgado,
  • T. Leguey,
  • V. de Castro,
  • M.A. Auger,
  • M.A. Monge,
  • P. Spätig,
  • N. Baluc,
  • R. Pareja

DOI
https://doi.org/10.1016/j.nme.2016.09.019
Journal volume & issue
Vol. 9, no. C
pp. 372 – 377

Abstract

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An oxide dispersion strengthened ODS ferritic steel has been produced by mechanical alloying of Fe–14Cr–2W–0.2Ti (wt.%) prealloyed powder with 0.55 (wt.%) Fe2Y intermetallic particles and consolidated by hot isostatic pressing. The microstructure after thermal treatments confirms the homogeneous precipitation of Y-Ti oxides with nanometric sizes. Tensile properties as a function of the testing temperature from room temperature to 973K have been measured and the results are discussed with respect to similar ODS ferritic steels fabricated by a powder metallurgy route using Y2O3 powder.

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