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镁合金环保型阳极氧化电解液组成优化的研究
引用本文:章珏,;梁金,;刘红霞,;张小联.镁合金环保型阳极氧化电解液组成优化的研究[J].赣南师范学院学报,2014(3):40-42.
作者姓名:章珏  ;梁金  ;刘红霞  ;张小联
作者单位:[1]赣南师范学院化学化工学院,江西赣州341000; [2]赣南师范学院江西省镁合金材料工程技术研究中心,江西赣州341000
基金项目:教育部科技重点项目(212093);江西省自然科学基金项目(20114BAB216013)
摘    要:为了提高镁合金耐腐蚀性能,采用正交试验对镁合金环保型阳极氧化电解液进行优化,确定了最佳的电解液组成,并通过全浸试验和动电位极化曲线等检测手段研究膜层的耐腐蚀性能.结果表明:镁合金经组成为50g/L氢氧化钠、100 g/L硼酸钠、20 g/L硅酸钠的电解液氧化后,表面生成的氧化膜光滑、平整、致密性好,腐蚀电位提高75 mV左右,耐腐蚀性能提高45%左右,对镁合金基体有良好的防护性.

关 键 词:镁合金  阳极氧化  环保型电解液

Study on Formula Optimization of Environmental Friendly Anodized Electrolyte for Magnesium Alloys
Institution:ZHANG Jue, LIANG Jan , LIU Hongxia, ZHANG Xiaolian ( a. School of Chemistry and Chemical Engineering; b. Jiangxi Provincial Engineering Research Center for Magnesium Alloys, Gannan Normal University, Ganzhou 341000, China)
Abstract:To improve the corrosion resistance of magnesium alloys,Orthogonal test was used to optimize research for Friendly Anodized electrolyte of the magnesium alloys,and the analysis of the corrosion resistance of the oxide film obtained by optimization also have done. The corrosion rate of oxide film was used as the main evaluation index to determine the optimum composition of electrolyte,and the corrosion resistance of the film was studied through total immersion test and potentiodynamic polarization curve,and so on.The research results show that,under normal temperature,the concentration of sodium hydroxide,sodium borate,sodium silicate,sodium carbonate are 50 g /L,100 g /L,20 g /L,and the anodized film prepared in the optimized electrolyte was smooth and compact.The corrosion potential and corrosion resistance increase about 75 mV and 45%,which can well protect the magnesium.
Keywords:magnesium alloy  anodic oxidation  environmental friendly electrolyte
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