| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1600714 | Intermetallics | 2011 | 9 Pages |
Abstract
⺠Oxidation of Ti-45.2Al-7.2Nb and Ti-44.8Al-6.6Ta (in at. %) alloys at 800-1000°C in air was studied. ⺠It was observed that both alloys show similar and excellent oxidation resistance at 800-900°C. ⺠At 1000°C, a strong oxide spallation is observed, mainly on the Nb-containing alloy. The Ta-containing alloy shows significantly better oxidation resistance at 1000°C. ⺠Despite the similarity of both ternary additives, chemical microanalysis of scales revealed that there are significant differences in element distributions between the alloys. ⺠Tantalum was shown to slow down the oxidation more efficiently than niobium.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
D. VojtÄch, T. Popela, J. Kubásek, J. Maixner, P. Novák,