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Surface study of radiation damaged oxide dispersion strengthened steels

Authors
Journal
Applied Surface Science
0169-4332
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.apsusc.2014.02.146
Keywords
  • Rafm Steel
  • Ods Steel
  • Positron Annihilation
  • Helium Ion Implantation
Disciplines
  • Physics

Abstract

Abstract In this paper, a structural analysis of Eurofer and ODS Eurofer was performed in terms of their radiation resistance. The radiation damage was simulated by helium ion implantation with kinetic energy of ions up to 500keV. The implanted ions reached the depth of about 1.2μm and the implantation dose was ∼1×1018ions/cm2. The radiation damage (∼45dpa) was investigated by suitable positron annihilation technique–Doppler broadening spectroscopy which showed visible accumulation of defects due to the implantation. According our results, ODS Eurofer seems to be more radiation resistant than classic Eurofer.

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