Effect of swift heavy ion irradiation on transformations of oxide nanoclusters in ODS alloys

R. A. Rymzhanov, J. O'Connell, V. A. Skuratov, A. S. Sohatsky, J. H. Neethling, A. E. Volkov, K. Havancsak

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Microstructure of Cr16 ferritic steel reinforced with yttrium oxide particles and KP4 oxide dispersion strengthened (ODS) alloy irradiated with 167 MeV xenon and 700 MeV bismuth ions at 300 K has been studied using high resolution transmission electron microscopy. It was found that Bi ion irradiation at fluences more than 1013 cm-2 leads to complete amorphization of oxide particles in Cr16 samples, while central regions of large (∼20 nm) particles and small oxides (∼5 nm) in KP4 steel remain crystalline. The Xe ion irradiation effect consists in polycrystallization of single crystalline oxide particles. Small oxide particles at 1.5×1015 Xe×cm-2 are fragmented to quasi-amorphous state. No dissolution of nanoparticles has been revealed in all studied samples.

Original languageEnglish
Pages (from-to)681-684
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number4
Publication statusPublished - Apr 1 2013



  • ODS
  • Oxide particles
  • Swift heavy ion irradiation

ASJC Scopus subject areas

  • Condensed Matter Physics

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