| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1503051 | Scripta Materialia | 2007 | 4 Pages |
Abstract
This work explores an environmentally clean method for synthesizing chemical conversion coatings on Mg alloy. An Mg,Al-hydrotalcite (Mg6Al2(OH)16CO3 · 4H2O) layer was initially developed on Mg alloy in an HCO3-/CO32- aqueous solution to protect the alloy from corrosion. The Mg,Al-hydrotalcite-coated Mg sample had a much greater corrosion resistance than an as-die-cast sample. In a corrosive environment (chloride solution), the hydrotalcite layer exhibited CO32- for Cl− anion-exchangeability, causing that the layer protected Mg alloy against corrosion.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.K. Lin, C.L. Hsia, J.Y. Uan,