对6063铝合金的氟铝酸钠转化膜进行了改性,确定改性后的最佳工艺条件为:氟化钠7.5 g/L,硅酸钠5 g/L,六偏磷酸钠3g/L,偏钒酸铵5 g/L,pH值3.0 ～4.0,常温,转化时间20 min.采用该工艺对铝合金进行转化处理,极化曲线测试结果表明,铝合金表面的腐蚀电位正移了大约70 mV,腐蚀电流密度减小了大约90％,耐蚀性显著提高,耐中性盐雾时间可达264 h.
参考文献
| [1] | 龚伟慧,陈东初,李文芳,陈单明.环境友好型铝合金化学转化表面处理技术的发展概况[J].材料研究与应用,2009(01):1-4. |
| [2] | M. W. Kendig;R. G. Buchheit .Corrosion Inhibition of Aluminum and Aluminum Alloys by Soluble Chromates, Chromate Coatings, and Chromate-Free Coatings[J].Corrosion: The Journal of Science and Engineering,2003(5):379-400. |
| [3] | KENDIG;DAVENPORT A J;ISAACS H S .The Mechanism of Corrosion Inhibitor by Chromate Conversion Coatings from X-ray Absorption Near Edge Spectroscopy[J].Corrosion Science,1995,37(03):349-369. |
| [4] | Xingwen Yu;Chunan Cao .Electrochemical study of the corrosion behavior of Ce sealing of anodized 2024 aluminum alloy[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2003(2):252-256. |
| [5] | James T. Renshaw Jr. .Aluminum Pretreatment: Next Generation Nonchrome Technologies Are Ready for the New Millennium[J].Metal finishing,1997(12):28,30-31-0. |
| [6] | 于兴文,曹楚南,林海潮.LY12铝合金表面稀土转化膜腐蚀行为的研究[J].中国稀土学报,2000(03):243-248. |
| [7] | A. Conde;M. A. Arenas;A. de Frutos;J. de Damborenea .Effective corrosion protection of 8090 alloy by cerium conversion coatings[J].Electrochimica Acta,2008(26):7760-7768. |
| [8] | 陈东初,李文芳,龚伟慧,吴桂香,黄铭深,梁奕清.铝合金表面无铬化学转化膜的制备及其性能[J].中国有色金属学报,2008(10):1839-1845. |
| [9] | 郭瑞光,王晓昌,耿志良,唐长斌.环境友好型铝合金表面转化膜的制备及其耐蚀性能[J].材料保护,2008(12):14-16. |
| [10] | 王毓华,陈兴华,胡业民,兰叶.磷酸盐对细粒铝硅酸盐矿物分散行为的影响[J].中南大学学报（自然科学版）,2007(02):238-244. |
| [11] | 祁鲁梁.水处理药剂及材料实用手册[M].北京:中国石化出版社,2000:412-413. |
| [12] | 张军军,李文芳,杜军,韩栋,郑小平.6063铝合金铈锰转化膜的研究[J].科学通报,2010(17):1734-1737. |
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