高级检索
    陈飞, 周海, 姚斌, 陈晨. 铝合金表面微弧氧化陶瓷层的耐腐蚀性能[J]. 机械工程材料, 2007, 31(6): 53-55.
    引用本文: 陈飞, 周海, 姚斌, 陈晨. 铝合金表面微弧氧化陶瓷层的耐腐蚀性能[J]. 机械工程材料, 2007, 31(6): 53-55.
    shu
    CHEN Fei, ZHOU Hai, YAO Bin, CHEN Chen. Corrosion Resistance of Micro-arc Oxidation Ceramic Coating on Aluminum Alloy Surfaces[J]. Materials and Mechanical Engineering, 2007, 31(6): 53-55.
    Citation: CHEN Fei, ZHOU Hai, YAO Bin, CHEN Chen. Corrosion Resistance of Micro-arc Oxidation Ceramic Coating on Aluminum Alloy Surfaces[J]. Materials and Mechanical Engineering, 2007, 31(6): 53-55.
    shu

    铝合金表面微弧氧化陶瓷层的耐腐蚀性能

    Corrosion Resistance of Micro-arc Oxidation Ceramic Coating on Aluminum Alloy Surfaces

      摘要
    • 摘要: 采用微弧氧化技术,以硅酸钠为主体配以Na2WO4、KOH、Na2EDTA辅助添加剂的电解液,在2A12铝合金表面原位生成陶瓷层,以提高铝合金的耐腐蚀性能.用扫描电镜(SEM)和X射线衍射仪(XRD)分析了微弧氧化陶瓷层的截面形貌和相结构;用显微硬度仪测量了陶瓷层的显微硬度;用CS300P型电化学腐蚀工作站在36 g/L的NaCl溶液中测试了陶瓷层的电化学腐蚀性能.结果表明:微弧氧化陶瓷层的厚度为4 μm,显微硬度达到683 HV,其相组成主要是α-Al2O3和γ-Al2O3:铝合金表面微弧氧化陶瓷层提高了铝合金的耐腐蚀性能,使其腐蚀速率明显减慢.

       

      Abstract: A dense oxide ceramic coating was prepared on 2A12 aluminium alloy by micro-arc oxidation in a Na2SiO3-Na2WO4-KOH-Na2EDTA electrolytic solution.Using SEM and XRD,the cross sectional morphology and phase structure of the micro-arc oxidation ceramic coating were analyzed.The microhardness of coating surface was also measured.The corrosion resistance of the micro-arc oxidation ceramic coating was tested using CS300P electrochemical corrosion workstation in 36 g/L NaCl solution.The thickness of micro-arc oxidation ceramic coating is about 4 μm.The microharness of coating surface is up to 683 HV.The phases are mainly α-Al2O3 and γ-Al2O3 in the coating.The corrosion resistance of the micro-arc oxidation ceramic coating in 36 g/L NaCl solution is enhanced remarkably,the corrosion velocity is obviously slowed down.

       

      • HTML全文
      • 参考文献(10)
      • 相关文章
      • 施引文献
    • 资源附件(0)

    /

    返回文章
    返回