| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10655791 | Intermetallics | 2005 | 7 Pages |
Abstract
The oxide dispersion strengthened FeAl Grade 3 intermetallic alloy have been shown to develop a structured oxide scale upon isothermal oxidation between 850 and 950 °C for 24 h. Transmission electron microscopy studies have revealed a top nanoequiaxed alumina, alumina and Fe-Al spinel at the outer, central and internal layers, respectively. At 1000 °C, the spinel phase no longer forms but a columnar alumina layer topped by a nanoequiaxed structure. The role of yttria is negligible at lower temperatures whereas some segregation at the scale/substrate interface and precipitation of YAlO3 is observed at 1000 °C.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
F. Pedraza, J.L. Grosseau-Poussard, J.F. Dinhut,