| 镁合金微弧氧化热力学和动力学分析 |
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| 引用本文： | 陈显明,罗承萍,刘江文,李文芳. 镁合金微弧氧化热力学和动力学分析[J]. 兵器材料科学与工程, 2006, 29(3): 17-20 |
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| 作者姓名： | 陈显明 罗承萍 刘江文 李文芳 |
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| 作者单位： | 华南理工大学,机械工程学院,广州,510640;华南理工大学,机械工程学院,广州,510640;华南理工大学,机械工程学院,广州,510640;华南理工大学,机械工程学院,广州,510640 |
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| 基金项目： | 广东省科技工业科技攻关项目 |
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| 摘 要： | 对镁合金微弧氧化过程中的热力学和动力学进行了计算和分析。结果表明,微弧氧化过程满足热力学条件,微弧氧化不是一个典型的形核长大过程。膜层是在不断击穿、生成、烧结、排泄堆积等过程中生长起来的,而且在反应过程中,膜层的生成是由反应电压、电流、电解液体系、pH值等各种工艺参数所控制的。
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| 关 键 词： | 热力学 动力学 镁合金 微弧氧化 膜层 |
| 文章编号： | 1004-244X（2006）03-0017-04 |
| 收稿时间： | 2005-07-06 |
| 修稿时间： | 2005-08-15 |
Thermodynamic and kinetic analysis of micro-arc oxidation on magnesium alloy |
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| CHEN Xian-ming,LUO Cheng-ping,LIU Jiang-wen,LI Wen-fang. Thermodynamic and kinetic analysis of micro-arc oxidation on magnesium alloy[J]. Ordnance Material Science and Engineering, 2006, 29(3): 17-20 |
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| Authors: | CHEN Xian-ming LUO Cheng-ping LIU Jiang-wen LI Wen-fang |
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| Affiliation: | College of Mechanical Engineering, South China University of Technology, Guangzhou 510641, China |
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| Abstract: | Thermodynamic and kinetic analyses of the micro-arc oxidation(MAO) on magnesium alloy were made . The result indicated that the reactions producing the phases in the coating were thermodynamically possible, and the formation of the MAO film was not a typical nucleation and growth process. A thin oxide film was first formed on the alloy surface by the electrolyte and an MAO coating was finally generated via repeated breakdown, reformation, sintering, ejection and pile-up of the films. The formation of film appeared to be controlled by such process variables as voltage, current, electrolyte system and pH value of the solution. |
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| Keywords: | thermodynamics kinetics magnesium alloy micro-arc oxidation film |
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