| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470834 | Corrosion Science | 2010 | 9 Pages |
Abstract
A two-step roll coating passivation treatment employing phosphate followed by molybdate solutions has been performed on hot-dip galvanized (GI) steel sheet. The phosphate coating was primarily porous, amorphous Zn phosphate. A second step coating treatment resulted in more hemispherical Zn phosphate particles and the incorporation of molybdate ions and molybdenum oxide into the existing phosphate coating, giving rise to an improved corrosion resistance. The coating reaction during the second step roll coating treatment and the corrosion protection afforded by the second step molybdate treatment are discussed, with emphases on the comparison with the coating formed via immersion.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Cheng-Yang Tsai, Jen-Shou Liu, Pei-Li Chen, Chao-Sung Lin,