Abstract
The stability of Y–Ti–O nanoclusters, dislocation structure, and grain boundary segregation in 9Cr-ODS steels has been investigated following proton irradiation at 400 °C with damage levels up to 3.7 dpa. A slight coarsening and a decrease in number density of nanoclusters were observed as a result of irradiation. The composition of nanoclusters was also observed to change with a slight increase of Y and Cr concentration in the nanoclusters following irradiation. Size, density, and composition of the nanoclusters were investigated as a function of nanocluster size, specifically classified to three groups. In addition to the changes in nanoclusters, dislocation loops were observed after irradiation. Finally, radiation-induced enrichment of Cr and depletion of W were observed at grain boundaries after irradiation.
| Original language | American English |
|---|---|
| Pages (from-to) | 87-94 |
| Number of pages | 8 |
| Journal | Journal of Nuclear Materials |
| Volume | 452 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Sep 2014 |
EGS Disciplines
- Materials Science and Engineering
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