彭光怀,郭雪锋,方玲,韩宝军,张小联.负脉冲电压对A356铝合金双脉冲微弧氧化膜组织与耐蚀性的影响[J].表面技术,2010,39(2):77-79.
PENG Guang-huai,GUO Xue-feng,FANG Ling,HAN Bao-jun,ZHANG Xiao-lian.Effect of Negative Pulse Voltage on the Microstructure and Corrosion Resistance of Microarc Oxidation Film on A356 Aluminum Alloy[J].Surface Technology,2010,39(2):77-79 |
| 负脉冲电压对A356铝合金双脉冲微弧氧化膜组织与耐蚀性的影响 |
| Effect of Negative Pulse Voltage on the Microstructure and Corrosion Resistance of Microarc Oxidation Film on A356 Aluminum Alloy |
| 投稿时间：2010-01-22 修订日期：2010-04-10 |
| DOI： |
| 中文关键词: 微弧氧化 负脉冲电压 微观结构 耐蚀性 |
| 英文关键词:microarc oxidation negative pulse voltage microstructure corrosion resistance |
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| Author | Institution |
| PENG Guang-huai | Gannan Normal University, Ganzhou 341000, China |
| GUO Xue-feng | Gannan Normal University, Ganzhou 341000, China |
| FANG Ling | Gannan Normal University, Ganzhou 341000, China |
| HAN Bao-jun | Gannan Normal University, Ganzhou 341000, China |
| ZHANG Xiao-lian | Gannan Normal University, Ganzhou 341000, China |
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| 中文摘要: |
| 采用SEM、覆层测厚仪等研究了负脉冲电压对A356铝合金双脉冲微弧氧化处理膜的组织微观结构及耐腐蚀性能的影响。结果表明,负脉冲电压通过其电极反应对膜层的组织与耐蚀性有重要影响,随负脉冲电压由0增加到160 V,膜层厚度随负脉冲电压的升高而增加;膜层表面粗糙度先减小后增加,表面微孔孔径与数量先减小后增加,在负脉冲电压为40 V时膜层表观上最致密;微弧氧化处理明显提高了合金的耐蚀性能,负脉冲电压为0 V时最佳。 |
| 英文摘要: |
| The effect of negative pulse voltage on the microstructure and corrosion resistance of microarc oxidation film on A356 aluminum alloy treated by double pulse microarc technique was investigated by SEM, coating thickness gauge etc. The results show that the negative pulse voltage by its electrode reaction greatly influences the microstructure and corrosion resistance of microarc oxidation film: the film thickness increases obviously when the negative pulse voltage varies from zero to 160 V; Size of pore and roughness of film surface firstly decreases then follows by a vital increasing,coating has the optimal compactness when negative pulse voltage is 40 V; The microarc oxidation treatment obviously improves the corrosive resistance of alloy, the best corrosion resistance of the film is achieved when negative pulse voltage is 0 V. |
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