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AZ91D镁合金表面纳米TiO_2复合微弧氧化层耐蚀性能研究
引用本文:朱海燕,邱骥,李新,刘谦. AZ91D镁合金表面纳米TiO_2复合微弧氧化层耐蚀性能研究[J]. 装甲兵工程学院学报, 2012, 26(3): 91-93
作者姓名:朱海燕  邱骥  李新  刘谦
作者单位:装甲兵工程学院装备再制造工程系,北京,100072
摘    要:为了提高AZ91D镁合金微弧氧化陶瓷层的耐蚀能力,采用Na2SiO3电解液,添加入纳米TiO2,经微弧氧化,纳米TiO2颗粒复合入陶瓷层中,形成表面质量良好的纳米复合陶瓷质氧化膜。通过与普通微弧氧化陶瓷层比较,结果表明:纳米TiO2复合微弧氧化陶瓷层孔隙率降低,致密性提高,抗盐雾腐蚀性能提高1倍以上。

关 键 词:镁合金  微弧氧化  耐蚀性

Study on Corrosion Resistance of TiO2 Nanoparticles Composite Micro-arc Oxidation Coating on AZ91D Magnesium Alloy Surface
ZHU Hai-yan,QIU Ji,LI Xin,LIU Qian. Study on Corrosion Resistance of TiO2 Nanoparticles Composite Micro-arc Oxidation Coating on AZ91D Magnesium Alloy Surface[J]. Journal of Armored Force Engineering Institute, 2012, 26(3): 91-93
Authors:ZHU Hai-yan  QIU Ji  LI Xin  LIU Qian
Affiliation:(Department of Equipment Remanufacture Engineering,Academy of Armored Force Engineering,Beijing 100072,China)
Abstract:In order to improve the corrosion resistance of AZ91D magnesium alloy ceramic coating,the Na2SiO3 electrolyte is adopted to be incorporated with TiO2 nanoparticles to form oxidation membrance of Nano composite ceramics by micro-arc oxidation and compounding TiO2 nanoparticles into ceramic coating,which has good surface quality.By comparing with ordinary micro-arc oxidation ceramic coating,it shows that the ceramic coating embedded with TiO2 nanoparticles exhibits lower porosity and improved compactness,and corrosion resistance against salt atmosphere is at least doubled.
Keywords:magnesium alloy  micro-arc oxidation  corrosion resistance
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