Abstract
Oxide dispersion strengthened (ODS) alloys are the leading candidate materials for advanced fission and fusion reactor components because of their excellent high temperature creep strength and radiation tolerance. The promising performance of ODS alloys relies on a high-density population of nano oxides. Here, four 9Cr-ODS alloys with varying initial Y/Ti atomic ratio were processed using a combined route of mechanical alloying (MA) and hot isostatic pressing (HIP). Microstructural characterizations of the consolidated alloys were examined by advanced transmission electron microscopy (TEM). Great differences in oxide distribution behavior were observed. 9Cr-ODS alloy with a Y/Ti ratio of 0.4 presented the finest and the highest number density of nano oxides among the four alloys. The effects of Y/Ti ratio on oxide formation were explored, and the precipitated mechanisms of the nano oxides were interpreted.
| Original language | English |
|---|---|
| Pages (from-to) | 35-40 |
| Number of pages | 6 |
| Journal | Materials Characterization |
| Volume | 134 |
| DOIs | |
| State | Published - Dec 2017 |
| Externally published | Yes |
Keywords
- Advanced transmission electron microscopy
- Electron energy loss spectroscopy
- Hot isostatic pressing
- Mechanical alloying
- Nano oxides
- Oxide dispersion strengthened alloys
Fingerprint
Dive into the research topics of 'Effect of Y/Ti atomic ratio on microstructure of oxide dispersion strengthened alloys'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver