| 微弧氧化电解液中加入Al_2O_3胶体对AZ91D复合陶瓷层性能的影响 |
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| 引用本文： | 姚晓红.微弧氧化电解液中加入Al_2O_3胶体对AZ91D复合陶瓷层性能的影响[J].稀有金属材料与工程,2016,45(8):2092-2097. |
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| 作者姓名： | 姚晓红 |
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| 作者单位： | 太原理工大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 在硅酸盐体系中加入Al_2O_3胶体对AZ91D镁合金进行微弧氧化,研究了Al_2O_3胶体的加入时间和加入量对陶瓷层组成、结构以及耐蚀性的影响。结果表明,在微弧氧化后期6 min(约为总氧化时间的3/5)时加入Al_2O_3胶体生成的复合陶瓷层耐蚀性最好;随Al_2O_3胶体用量的增加,陶瓷层的腐蚀速度明显减小,但当用量约超过电解液总容量的20%时,对陶瓷层的耐蚀性能提高不明显。
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| 关 键 词： | 微弧氧化 Al2O3胶体 复合陶瓷层 耐蚀性 |
| 收稿时间： | 2014/10/16 0:00:00 |
| 修稿时间： | 1/4/2015 12:00:00 AM |
Influences on properties of AZ91D composite ceramic layer formed in electrolyte adding Al2O3 colloid |
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| yaoxiaohong.Influences on properties of AZ91D composite ceramic layer formed in electrolyte adding Al2O3 colloid[J].Rare Metal Materials and Engineering,2016,45(8):2092-2097. |
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| Authors: | yaoxiaohong |
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| Affiliation: | Taiyuan University Of Technology |
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| Abstract: | Ceramic coating was fabricated on AZ91D magnesium alloys by micro-arc oxidation in silicate system which was added Al2O3 colloid, influences of adding time and amount on chemical composition, microstructure and corrosion resistance of the MAO ceramic coatings were studied. The results showed that the ceramic coating which was formed by adding Al2O3 colloid at about 6min (the total oxidation time was 10min) performed the best corrosion resistance; and the corrosion rate was reduced evidently with the increase of Al2O3 colloid dosage, however, the performance of corrosion resistance was hardly influenced when used excessive dosage |
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| Keywords: | micro-arc oxidation Al2O3 colloid composite ceramic layer corrosion resistance |
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