| LY12铝合金微弧氧化陶瓷层的电化学腐蚀行为 |
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| 引用本文： | 翟敏,蒋百灵,刘东杰.LY12铝合金微弧氧化陶瓷层的电化学腐蚀行为[J].材料保护,2011(6):11-13. |
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| 作者姓名： | 翟敏 蒋百灵 刘东杰 |
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| 作者单位： | 西安理工大学材料科学与工程学院,陕西西安,710048 |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2008BAE-63B00); 陕西省重点学科建设专项资金资助项目 |
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| 摘 要： | 为了系统了解微弧氧化电参数对铝合金微弧氧化膜耐蚀性的影响,采用自制的设备以恒流法在硅酸盐系电解液中对LY12铝合金进行微弧氧化处理.研究了频率、占空比、时间等参数对铝合金微弧氧化陶瓷层电化学腐蚀行为的影响.用扫描电镜(SEM)和电化学工作站等手段,分析了不同能量参数制备的陶瓷层的微观结构及耐蚀性.结果表明:随着频率增加...
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| 关 键 词： | 微弧氧化 LY12铝合金 陶瓷层 耐蚀性 极化曲线 电化学阻抗 |
Electrochemical Corrosion Behavior of Micro-Arc Oxidation Coatings on LY12 Aluminum Alloy |
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| ZHAI Min,JIANG Bai-ling,LIU Dong-jie.Electrochemical Corrosion Behavior of Micro-Arc Oxidation Coatings on LY12 Aluminum Alloy[J].Journal of Materials Protection,2011(6):11-13. |
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| Authors: | ZHAI Min JIANG Bai-ling LIU Dong-jie |
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| Affiliation: | ZHAI Min,JIANG Bai-ling,LIU Dong-jie(School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,China) |
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| Abstract: | A home-made micro-arc oxidation(MAO) facility was performed in constant current mode to prepare ceramic coatings on LY12 Al alloy from silicate electrolyte.The microstructure and corrosion resistance of the MAO coatings obtained under different parameters were analyzed using a scanning electron microscope and an electrochemical workstation,and the effects of frequency,duty cycle and time on the electrochemical corrosion behavior of the MAO coatings were investigated.Results indicate that increasing frequenc... |
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| Keywords: | micro-arc oxidation LY12 aluminum alloy ceramic coating corrosion resistance polarization curve electrochemical impedance |
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