| 各参数对AZ91D镁合金微弧氧化膜层质量影响的研究 |
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| 引用本文： | 宋学平,贾金龙,马跃洲.各参数对AZ91D镁合金微弧氧化膜层质量影响的研究[J].化工机械,2011,38(6):704-708. |
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| 作者姓名： | 宋学平 贾金龙 马跃洲 |
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| 作者单位： | 1. 兰州理工大学材料科学与工程学院;兰州石化职业技术学院
2. 兰州理工大学材料科学与工程学院 |
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| 摘 要： | 使用自行研制的微弧氧化电源,研究分析了电解液成分、电参数及氧化时间等因素对AZ91D镁合金氧化膜层质量的影响.研究表明:电解液成分决定着膜层的成分与性能,铝酸盐体系电解液中形成的氧化膜层耐蚀性、耐磨性和硬度明显不如硅酸盐体系电解液；带放电回路的脉冲电源要明显地优于其它电源；电压、电流密度、脉冲宽度、氧化时间、频率和占空...
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| 关 键 词： | AZ91D镁合金 氧化膜层 终电压 耐蚀性 |
Study on Parameter Influence on Micro-arc Oxidation Film of AZ91 D Magnesium Alloy |
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| SONG Xue-ping
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JIA Jin-long
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MA Yue-zhou.Study on Parameter Influence on Micro-arc Oxidation Film of AZ91 D Magnesium Alloy[J].Chemical Engineering & Machinery,2011,38(6):704-708. |
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| Authors: | SONG Xue-ping JIA Jin-long MA Yue-zhou |
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| Affiliation: | 1.College of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China;2.Lanzhou Petrochemical College of Vocational Technology,Lanzhou 730060,China) |
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| Abstract: | Making use of self-made micro-arc oxidation electrical source,the electrolyte composition,electrical parameter and oxidation time influences on AZ91D magnesium alloy oxidation film quality were discussed,the results show that electrolyte composition can decide film components and performance;and the corrosion resistance,grinding resistance and rigidity of oxidation film in aluminate system electrolyte become inferior to silicate system electrolyte;the pulse power with discharge circuit outperforms other power supply;and the voltage,current density,pulse width,oxidation time,frequency and duty-cycle can influence film quality;the final voltage influences oxidation film thickness much,and at 200V,the film corrosion-resistance is best.Many factors jointly affect the film corrosion-resistance with the exception of the thickness. |
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| Keywords: | AZ91D magnesium alloy oxidation films final voltage corrosion resistance |
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