Effect of Heat Treatment on Microstructures and Properties of Zinc-Aluminum Coating on AZ91D Magnesium Alloy |
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| Journal | Key Engineering Materials (Volumes 373 - 374) |
|---|---|
| Volume | Surface Engineering |
| Edited by | M.K. Lei, X.P. Zhu, K.W. Xu and B.S. Xu |
| Pages | 55-58 |
| DOI | 10.4028/www.scientific.net/KEM.373-374.55 |
| Citation | Jin Zhang et al., 2008, Key Engineering Materials, 373-374, 55 |
| Online since | March, 2008 |
| Authors | Jin Zhang, Ying Wang |
| Keywords | Corrosion Resistance, Magnesium Alloy, Thermal Spray, Zinc-Alluminium Coating |
| Abstract | A protective zinc-aluminum spray coating and a post heat treatment was carried out onto AZ91D magnesium alloy. The effect of post heat treatment on the interfacial characteristics, corrosion behaviors, micro-hardness, and thermal shock resistance of the zinc-aluminum coating were evaluated in this paper. It was found that a dense inter-coating formed at the Zn/Mg substrate interface followed by the post heat treatment. The results of EDS analysis indicated that the diffusion took place among Mg, Al and Zn atoms. The Zn-Al deposited coating with heat treatment had much more corrosion resistant and higher resistant to thermal shock. It was harder than as-received AZ91D Mg alloy. |
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