| 添加剂对AZ31镁合金阳极氧化膜耐蚀性能的影响 |
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| 引用本文： | 王桂香,穆俊宏,李云虎.添加剂对AZ31镁合金阳极氧化膜耐蚀性能的影响[J].电镀与环保,2011,31(5):28-31. |
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| 作者姓名： | 王桂香 穆俊宏 李云虎 |
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| 作者单位： | 哈尔滨工程大学材料科学与化学工程学院超轻材料与表面工程教育部重点实验室,黑龙江哈尔滨,150001 |
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| 摘 要： | 以50.0 g/L NaOH+10.0 g/L H3BO3+20.0 g/L Na2B4O7· 10 H2O为基础电解液,采用恒电位模式,研究了几种添加剂对AZ 31镁合金阳极氧化膜性能的影响.采用扫描电镜、点滴实验和极化曲线分别对阳极氧化膜的表面形貌和耐蚀性能进行测试.结果表明:硅酸钠的最佳质量浓度为10.0 g/L...
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| 关 键 词： | 镁合金 阳极氧化膜 耐蚀性 添加剂 |
Effects of Additives on Corrosion Resistance of Anodic Film for AZ 31 Magnesium Alloy |
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| WANG Gui-xiang,MU Jun-hong,LI Yun-hu.Effects of Additives on Corrosion Resistance of Anodic Film for AZ 31 Magnesium Alloy[J].Electroplating & Pollution Control,2011,31(5):28-31. |
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| Authors: | WANG Gui-xiang MU Jun-hong LI Yun-hu |
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| Affiliation: | WANG Gui-xiang,MU Jun-hong,LI Yun-hu(Harbin Engineering University,College of Materials Science and Chemical Engineering,Key Laboratory of Superlight Material and Surface Technology,Harbin 150001,China) |
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| Abstract: | The effects of several additives on the anodization of Mg alloy AZ 31 were investigated with an electrolyte based on 50.0 g/L NaOH + 10.0 g/L H3BO3 + 20.0 g/L Na2B4O7·10H2O and by constant potential mode.The morphology and corrosion resistance of the anodic oxide films were tested by scanning electron microscopy,spot test and polarization curves respectively.The results show that the optimal mass concentrations for sodium silicate,sodium citrate and sodium oxalate are 10 g/L,7.5 g/L,0.8 g/L respectively.Spark discharge is enhanced by sodium silicate and weakened by sodium citrate in electrolysis,and when sodium oxalate is added,spark discharge will disappear. |
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| Keywords: | magnesium alloy anodic film corrosion resistance additive |
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