Nanostructured ferritic steels have excellent high temperature creep properties and radiation tolerance due to the presence of a high density of Ti-Y-O-enriched nanoclusters. The morphology of the nanoclusters is found to be consistent with a truncated rhombic dodecahedron defined by the {100} and {110} planes in the Fe matrix. The derived symmetry and the compositional information indicate that the nanoclusters are inconsistent with the cubic Y2Ti2O7 or the polymorphs of Y2TiO5 phase. Possible structural models are discussed.
Revised: March 29, 2012 |
Published: January 14, 2012
Citation
Brandes M.C., L. Kovarik, M.K. Miller, and M.J. Mills. 2012.Morphology, structure, and chemistry of nanoclusters in a mechanically alloyed nanostructured ferritic steel.Journal of Materials Science 47, no. 8:3913-3923.PNNL-SA-75316.doi:10.1007/s10853-012-6249-x