Castro Bernal, María Vanessa deLeguey Galán, TeresaMuñoz Castellanos, ÁngelMonge Alcazar, Miguel ÁngelPareja Pareja, RamiroMarquis, E.A.Lozano-Pérez, S.Jenkins, M. L.2014-11-242014-11-242007-12Journal of Nuclear Materials 386–388 (2009) pp.449–4520022-3115https://hdl.handle.net/10016/19720Proceedings of the: Thirteenth International Conference on Fusion Reactor Materials. Nice (France), 10-14/12/2007.Two Fe-12 wt% Cr alloys, one containing 0.4 wt% Y₂O₃ and the other Y₂O₃ free, have been produced by mechanical alloying followed by hot isostatic pressing. These oxide dispersion strengthened and reference alloys were characterized both in the as-HIPed state and after tempering by transmission electron microscopy and atom-probe tomography. The as-HIPed alloys exhibited the characteristic microstructure of lath martensite and contained a high density of dislocations. Small voids with sizes <10 nm were also observed. Both alloys also contained M₃C and M₂₃C₆ carbides (M = Cr, Fe) probably as a result of C ingress during milling. After tempering at 1023 K for 4 h the microstructures had partially recovered. In the recovered regions, martensite laths were replaced by equiaxed grains in which M₂₃C₆ carbides decorated the grain boundaries. In the ODS alloy nanoparticles containing Y were commonly observed within grains, although they were also present at grain boundaries and adjacent to large carbides.4application/pdfeng© 2009. Elsevierconference paper10.1016/j.jnucmat.2008.12.136open access449452Journal of Nuclear Materials386-388CC/0000021949