| Mg-Mn-Ce镁合金表面超疏水复合膜层的制备及耐腐蚀性能 |
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| 引用本文： | 康志新,赖晓明,王芬,龙雁,李元元.Mg-Mn-Ce镁合金表面超疏水复合膜层的制备及耐腐蚀性能[J].中国有色金属学报,2011,21(2). |
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| 作者姓名： | 康志新 赖晓明 王芬 龙雁 李元元 |
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| 作者单位： | 华南理工大学,机械与汽车工程学院,广州,510640;华南理工大学,国家金属材料近净成形工程技术研究中心,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目(50673028); 广州市科技支撑计划资助项目(2009Z2-D811) |
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| 摘 要： | 采用微弧氧化技术和有机镀膜技术相结合的复合处理方法实现Mg-Mn-Ce镁合金表面改性,获得超疏水复合膜层,研究微弧氧化膜的表面特征、有机镀膜电化学反应过程、复合膜层的润湿特性和耐腐蚀性能。结果表明:镁合金经微弧氧化处理后由于微弧氧化膜表面呈微纳多孔结构,表现为超亲水特性,其蒸馏水的静态接触角接近0°;在微弧氧化膜上经有机镀膜后,其形成的有机薄膜的静态接触角高达173.3°,表现出优良的超疏水特性。镁合金经微弧氧化处理后具有良好的耐腐蚀性能,经有机镀膜超疏水复合处理后,耐腐蚀性能得到进一步提高。复合膜层在3.5%NaCl溶液中,与基体相比动电位极化腐蚀电流密度减小了3个数量级、而电化学阻抗提高了3个数量级,耐腐蚀性能明显改善。微弧氧化与有机镀膜相结合的复合处理使镁合金表面在实现超亲水-超疏水功能转换的同时显著提高镁合金的耐腐蚀性能。
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| 关 键 词： | Mg-Mn-Ce镁合金 微弧氧化 有机镀膜 超疏水 耐腐蚀性 |
Preparation of super-hydrophobic duplex-treated film on surface of Mg-Mn-Ce magnesium alloy and its corrosion resistance |
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| KANG Zhi-xin,LAI Xiao-ming,WANG Fen,LONG Yan,LI Yuan-yuan.Preparation of super-hydrophobic duplex-treated film on surface of Mg-Mn-Ce magnesium alloy and its corrosion resistance[J].The Chinese Journal of Nonferrous Metals,2011,21(2). |
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| Authors: | KANG Zhi-xin LAI Xiao-ming WANG Fen LONG Yan LI Yuan-yuan |
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| Affiliation: | KANG Zhi-xin1,2,LAI Xiao-ming1,WANG Fen1,LONG Yan1,LI Yuan-yuan1,2(1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China,2.National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials,China) |
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| Abstract: | The super-hydrophobic duplex-treated film on the surface of Mg-Mn-Ce magnesium alloy was achieved by duplex treatment combined with techniques of micro-arc oxidation(MAO) and developed polymer plating,and its surface was modified.The surface characteristics of MAO film,electrochemical reaction process of polymer plating,wettability and corrosion behavior of duplex-treated film were investigated.The results show that the film treated by MAO on magnesium alloy surface becomes super-hydrophilic due to its micr... |
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| Keywords: | Mg-Mn-Ce magnesium alloy micro-arc oxidation polymer plating super-hydrophobicity corrosion resistance |
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