| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 11007801 | Corrosion Science | 2018 | 16 Pages |
Abstract
The design of ultra-high purity (UHP) Fe-based alloys for advanced ultra-supercritical (A-USC) technology is suggested in this work. The creep testing at 700â°C and a stress level of 150âMPa have been performed in air. The addition of small amount of reactive-elements, W, Nb, Zr and Sc, has been undertaken into model alloys with the intention to promote the precipitation strengthening. Optimizing the chemical composition coupled by pre-straining enabled improving the creep resistance; hence a creep-rupture life of 750âh was reached. The oxidation resistance in supercritical water is remarkably enhanced by small addition of Sc.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Fethi Hamdani, Tetsuo Shoji,