| 纯Mg表面TiO_2薄膜的耐蚀性研究 |
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| 引用本文： | 谢奉妤,高家诚,胡德,张敏.纯Mg表面TiO_2薄膜的耐蚀性研究[J].材料导报,2012,26(4):18-21. |
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| 作者姓名： | 谢奉妤 高家诚 胡德 张敏 |
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| 作者单位： | 重庆大学国家镁合金材料工程技术研究中心,重庆400030;重庆大学材料科学与工程学院,重庆400045 |
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| 摘 要： | 以四氯化钛为前驱体,去离子水为溶剂,盐酸为抑制剂,采用溶胶-凝胶法制得TiO2溶胶。采用浸渍-提拉技术在纯镁基体上制得TiO2薄膜,以提高纯镁基体的耐蚀性。通过正交实验,以电化学阻抗值作为评价标准,研究了热处理温度、涂层次数、溶胶浓度对试样耐腐蚀性的影响。结果表明,溶胶浓度为0.5%、涂层次数为3、热处理温度为100℃时得到的TiO2薄膜具有最好的耐蚀性。
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| 关 键 词： | 二氧化钛 纯Mg 腐蚀 电化学阻值 |
Study on Corrosion Resistance of TiO2 Films on the Pure Mg Surface |
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| XIE Fengyu
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GAO Jiacheng
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HU De
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ZHANG Min.Study on Corrosion Resistance of TiO2 Films on the Pure Mg Surface[J].Materials Review,2012,26(4):18-21. |
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| Authors: | XIE Fengyu GAO Jiacheng HU De ZHANG Min |
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| Affiliation: | (National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400030;Materials Science & Engineering College,Chongqing University,Chongqing 400045) |
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| Abstract: | TiO2 sol,prepared by sol-gel technique using titanium tetrachloride as precursor,deionized water as solvent and HCl as inhibiter,was coated on pure magnesium(Mg) by the method of dip-coating to improve the matrix corrosion resistance.The effects of the heat-treatment temperature,coating times and sol concentration on the corrosion resistance of the samples were investigated by the orthogonalizing analysis,where electrochemical impedance va-lue was chosen as evaluation criteria.According to the results,the optimal synthesis route was 0.5% sol concentration,3 coating times,and 100℃ heat-treatment temperature where TiO2-coated Mg had the best corrosion resistance. |
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| Keywords: | TiO2 pure Mg corrosion electrochemical resistance |
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