Abstract
A novel anticorrosive film with a thickness of approximately 50 μm was successfully coated on an AZ31 magnesium alloy by chemical and low-heat treatments (50 °C). The film was a single-phase system of newberyite (MgHPO4•3H2O) having an orthorhombic crystal structure. The corrosion current density of the newberyite film coated on the AZ31 magnesium alloy decreased by more than two orders of magnitude as compared to that of the AZ31 magnesium alloy. The static water contact angle of the newberyite film was less than 10°. The average value of the scratch critical load for the newberyite coating was estimated to be approximately 15 mN.
| Original language | English |
|---|---|
| Pages (from-to) | 2288-2291 |
| Number of pages | 4 |
| Journal | Surface and Coatings Technology |
| Volume | 203 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2009 May 30 |
| Externally published | Yes |
Keywords
- Coating
- Corrosion
- Magnesium alloys
- Newberyite
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
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Cite this
Ishizaki, T., Shigematsu, I., & Saito, N. (2009). Anticorrosive magnesium phosphate coating on AZ31 magnesium alloy. Surface and Coatings Technology, 203(16), 2288-2291. https://doi.org/10.1016/j.surfcoat.2009.02.026