Skuratov V.A., Uglov V.V., O'Connell J., Sohatsky A.S., Neethling J.H., Rogozhkin S.V.
FLNR, JINR, Dubna, Russian Federation; Belarusian State University, Minsk, Belarus; CHRTEM, NMMU, Port Elizabeth, South Africa; ITEP, Moscow, Russian Federation
Skuratov, V.A., FLNR, JINR, Dubna, Russian Federation; Uglov, V.V., Belarusian State University, Minsk, Belarus; O'Connell, J., CHRTEM, NMMU, Port Elizabeth, South Africa; Sohatsky, A.S., FLNR, JINR, Dubna, Russian Federation; Neethling, J.H., CHRTEM, NMMU, Port Elizabeth, South Africa; Rogozhkin, S.V., ITEP, Moscow, Russian Federation
The microstructure of Cr16 ferritic steel reinforced with yttrium oxide particles and KP4 ODS alloy irradiated with 167 MeV xenon and 700 MeV bismuth ions at 300 K has been studied using high resolution transmission electron microscopy. Amorphous latent tracks were identified in (Cr, W) 23C6, Y2Ti2O7 and Y 2TiO5 nanoparticles in Cr16 at a Bi ion fluence of 1.5 × 1012 cm-2. It was found that multiple track overlapping leads to complete amorphization of carbide and (Y, Ti) oxide particles in Cr16 specimens. No latent tracks have been observed in Y 4Al2O9 particles in KP4 irradiated with Bi ions. Small oxide particles (∼5 nm), in KP4 alloy, remain crystalline at Bi ion fluences up to 1.5 × 1013 cm-2, while subsurface regions in large (∼20 nm) particles were amorphized. Xe ion irradiation at fluences of 1 × 1014 cm-2 and 1.5 × 10 15 cm-2 resulted in amorphization of small Y 4Al2O9 oxide particles while the amorphous bodies of large particles were found to contain small crystalline inclusions. © 2013 Elsevier B.V. All rights reserved.
