Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/20167| Title: | Effects of substituting ytterbium for scandium on corrosion behaviour of Al-Sc alloy |
| Author: | Tuan, N. Q. Alves, A. C. Toptan, F. Lopes, A. B. Pinto, A. M. P. |
| Keywords: | 3.5-PERCENT NACL SOLUTION ELECTROCHEMICAL-BEHAVIOR LOCALIZED CORROSION ALUMINUM-ALLOYS INTERMETALLIC PARTICLES MG ALLOYS MICROSTRUCTURE ADDITIONS IRON |
| Issue Date: | 2015 |
| Publisher: | WILEY-V C H VERLAG GMBH |
| Abstract: | The localized corrosion and electrochemical behaviour of Al-0.28 wt.% Sc and Al-0.24 wt.% Sc-0.07 wt.% Yb alloys have been studied in 3.5 wt.% NaCl solution. The results showed that the impurity intermetallic phases containing Fe can act as cathodes and promote localized corrosion in the surrounding matrix. Yb had strong effect on the polarization behaviour in the anodic domain of Al-Sc alloy by improving the pitting corrosion resistance of this alloy. It has been deduced that a high number density of fully coherent nano-sized Al3Sc or Al-3(Sc, Yb) precipitates in heat treated alloys can enhance the passivation tendency of these alloys. |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/20167 |
| DOI: | 10.1002/maco.201508360 |
| ISSN: | 0947-5117 |
| Publisher Version: | 10.1002/maco.201508360 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Effects of substituting ytterbium for scandium on corrosion behaviour of Al-Sc alloy_10.1002maco.201508360.pdf | 2.1 MB | Adobe PDF |  |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.