| 镁合金微弧氧化过程中的成膜规律 |
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| 引用本文： | 陈显明,罗承萍,刘江文. 镁合金微弧氧化过程中的成膜规律[J]. 材料工程, 2009, 0(12) |
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| 作者姓名： | 陈显明 罗承萍 刘江文 |
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| 作者单位： | 1. 肇庆学院,电子信息与机电工程学院,广东,肇庆526061
2. 华南理工大学,材料学院,广州510641 |
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| 摘 要： | 镁合金微弧氧化膜层的生长按一定的成膜规律进行.从氧化过程中样品各部分尺寸的变化中发现,氧化前期是以向基体外生长为主,而后期则以向基体内生长为主.用ICP-AES仪器研究了基体中的合金元素向溶液中迁移规律.并估算了薄膜生长前期的各种料子运动情况,认为微弧氧化前期膜层的生长速度受电解液中的传质速度所控制.而薄膜生长后期则由扩散方程所控制,其中氧离子的扩散至为关键.
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| 关 键 词： | 镁合金 微弧氧化 规律 膜层 扩散 |
Forming Rule of Coating During Process of Micro-arc Oxidation on Magnesium Alloys |
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| CHEN Xian-ming,LUO Cheng-ping,LIU Jiang-wen. Forming Rule of Coating During Process of Micro-arc Oxidation on Magnesium Alloys[J]. Journal of Materials Engineering, 2009, 0(12) |
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| Authors: | CHEN Xian-ming LUO Cheng-ping LIU Jiang-wen |
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| Affiliation: | CHEN Xian-ming1,LUO Cheng-ping2,LIU Jiang-wen2(1 College of Electronic , Information &Mechanical Engineering,Zhaoqing University,Zhaoqing 526061,Guangdong,China,2 College of Material,South China University of Technology,Guangzhou 510641,China) |
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| Abstract: | Some rules are obeyed on the micro-arc oxidation(MAO) forming process of the magnesium alloys.The size variation of MAO coatings in different parts is found that in the earlier stage the coating growing outward is dominant,but in the later stage the coating growing inward is dominant.And the migration rule of some alloying elements in the matrix was studied.Moreover the velocity of some particles was estimated in the earlier stage of the coating growing.The results showed that in the earlier stage the veloc... |
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| Keywords: | magnesium alloy micro-arc oxidation(MAO) rule coating diffusion |
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