| 铝合金表面镍钼二元化学转化膜的制备及其耐腐蚀性 |
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| 引用本文： | 刘淑红,兰喜杰.铝合金表面镍钼二元化学转化膜的制备及其耐腐蚀性[J].大连交通大学学报,2014,35(6):85-88. |
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| 作者姓名： | 刘淑红 兰喜杰 |
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| 作者单位： | 大连交通大学环境与化学工程学院,辽宁大连,116028 |
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| 基金项目： | 辽宁省教育厅科学技术研究资助项目 |
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| 摘 要： | 以NiSO4和Na2MoO4作为成膜主盐制备铝合金表面无铬的Ni-Mo二元化学转化膜,考察了溶液pH值、NiSO4浓度、Na2MoO4浓度、温度对Ni-Mo二元膜耐腐蚀性能的影响.耐腐蚀性试验、电化学分析和SEM表征结果表明：与空白铝合金试片、覆盖Ni一元膜的铝合金试片相比,覆盖Ni-Mo二元膜的铝合金具有更佳的耐腐蚀性能和更为平整的转化膜外观.
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| 关 键 词： | 铝合金 镍钼 化学转化膜 耐腐蚀性能 |
Research on Preparation and Corrosion Resistance of Ni-Mo Conversion Film on Aluminum Alloy Surface |
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| LIU Shuhong,LAN Xijie.Research on Preparation and Corrosion Resistance of Ni-Mo Conversion Film on Aluminum Alloy Surface[J].Journal of Dalian Jiaotong University,2014,35(6):85-88. |
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| Authors: | LIU Shuhong LAN Xijie |
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| Institution: | (School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China) |
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| Abstract: | Chrome-free Ni-Mo chemical conversion film with good corrosion resistance was prepared by chemical conversion method using NiSO4 and Na2MoO4 as main salts. Effects of p H value,Ni SO4 concentration,Na2MoO4 concentration and temperature on corrosion resistance of the coating were studied. Compared with aluminum alloy with no film and aluminmu alloy with Ni chemical conversion film,the aluminum alloy with NiMo chemical conversion film has a roughness surface and the best corrosion resistance performance from the results of corrosion resistance tests,electrochemical tests and SEM analysis. |
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| Keywords: | aluminum alloy Ni-Mo chemical conversion film corrosion resistance |
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