Abstract
In this study, the effects of adding niobium and vanadium to Fe-based oxide dispersion strengthened alloys are confirmed. The composition of alloys are Fe-20Cr-1Al-0.5Ti-0.5Y2O3 and Fe-20Cr-1Al-0.5Ti-0.3V-0.2Nb-0.5Y2O3. The alloy powders are manufactured by using a planetary mill, and these powders are molded by using a magnetic pulsed compaction. Thereafter, the powders are sintered in a tube furnace to obtain sintered specimens. The added elements exist in the form of a solid solution in the Fe matrix and suppress the grain growth. These results are confirmed via X-ray diffraction and scanning electron microscopy analyses of the phase and microstructure of alloys. In addition, it was confirmed that the addition of elements, improved the hardness property of Fe-based oxide dispersion strengthened alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 1265-1268 |
| Number of pages | 4 |
| Journal | Archives of Metallurgy and Materials |
| Volume | 65 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2020 |
Keywords
- Fe-based ODS
- Hardness
- Niobium
- Superalloy
- Vanadium