| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5439905 | Corrosion Science | 2017 | 52 Pages |
Abstract
The corrosion behaviour of hot-dip Al-Zn-Si and Al-Zn-Si-3Mg coatings on steel sheets in NaCl solution were investigated by microstructural characterization, weight loss tests, and electrochemical methods Localized corrosion of the Al-rich phase in the Al-Zn-Si coating was observed. The exposure of the intermetallic layer was supposed to present galvanic corrosion and remarkably accelerate the consumption of remnant Al-rich phase. The MgZn2 phase was detected in the interdendritic Zn-rich region of the Al-Zn-Si-3Mg coating. The presence of the MgZn2 and Mg2Si phases contributed to delaying the occurrence of localized corrosion.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Wei Liu, Qian Li, Mou-Cheng Li,