Effect of Anodizing on the Properties of Aluminum Arc-sprayed Magnesium Alloys
碩士 === 大同大學 === 材料工程研究所 === 90 === Magnesium and magnesium-based alloys have an attractive combination of low density and good strength-to-weight ratio [1]. The heat conductivity and EMF effect are also the advantages for magnesium alloys for 3C productions [2]. The anti-shock resistance is much bet...
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| Format: | Others |
| Language: | en_US |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/17256740587984639314 |
| Summary: | 碩士 === 大同大學 === 材料工程研究所 === 90 === Magnesium and magnesium-based alloys have an attractive combination of low density and good strength-to-weight ratio [1]. The heat conductivity and EMF effect are also the advantages for magnesium alloys for 3C productions [2]. The anti-shock resistance is much better than the aluminum alloys and steels. It is suitable for portable tools and electro-devices parts [3]. The magnesium alloys is better than plastic for environment. It can be naturally decomposition [4]. But the magnesium alloys are too active and corrosive for applications. It is not used so much as aluminum alloys for lighter-weight applications.
The magnesium alloy surface treatments include the chemical conversion coating, anodizing treatment, plating treatment and metal coating [5]. The chemical conversion coating and anodizing treatment with chromate could have serious environmental problems [6]. The non-chromate chemical conversion coating and anodizing treatment were not so reliable and effective. The plating treatments have complex process and poor corrosion resistance [7]. The metal coatings will have an attractive combination of higher corrosion resistance and hardness.
The process of this study could provide aluminum anodic coatings. It has better corrosion resistance than the magnesium anodic coatings.
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