为进一步增强磷化膜的耐蚀性,将磷化热镀锌钢板用硝酸铈溶液进行封闭后处理,并采用扫描电镜(SEM)和X射线能谱(EDAX)对所得复合膜层的组织形貌和化学成分进行了分析.结果表明,经硝酸铈溶液封闭处理后,磷化膜的孔隙被封闭,在锌层表面形成了由磷化膜和铈盐转化膜构成的连续完整的复合膜.其耐蚀性显著优于单磷化膜,其中热镀锌钢磷化300 s再在硝酸铈溶液中封闭处理300 s后所获得的复合膜耐蚀性最佳,并优于常规铬酸盐钝化膜.
参考文献
| [1] | Akhtar AS;Susac D;Glaze P;Wong KC;Wong PC;Mitchell KAR .The effect of Ni2+ on zinc phosphating of 2024-T3 Al alloy[J].Surface & Coatings Technology,2004(2/3):208-215. |
| [2] | Wolpers M.;Angeli J. .Activation of galvanized steel surfaces before zinc phosphating - XPS and GDOES investigations[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(1/4):281-291. |
| [3] | Zimmermann D;Munoz AG;Schultze JW .Formation of Zn-Ni alloys in the phosphating of Zn layers[J].Surface & Coatings Technology,2005(2/3):260-269. |
| [4] | 刘军,卢锦堂,林碧兰,孔纲,车淳山.胶质磷酸钛表调预处理对热镀锌层表面磷化膜的影响[J].材料保护,2007(02):1-3. |
| [5] | Hinton B R W;Wilson L .The corrosion inhibition of zinc with cerium chloride[J].Corrosion Science,1989,29(08):967-985. |
| [6] | Aramaki K .The inhibition effects of chromate-free,anion inhibitors on corrosion of zinc in aerated 0.5 M NaCl[J].Corrosion Science,2001,43(03):591-604. |
| [7] | Goldie B P F;Mc Carroll J J .Inhibition metal COrrosion in aqueous systems[P].Au 329478,1784. |
| [8] | M.F.Montemor;A.M.Simoes;M.G.S.Ferreira .Composition and behaviour of cerium films on galvanised steel[J].Progress in Organic Coatings: An International Review Journal,2001(4):274-281. |
| [9] | M. A. Arenas;J. J. de Damborenea .Growth mechanisms of cerium layers on galvanised steel[J].Electrochimica Acta,2003(24):3693-3698. |
| [10] | Aramaki K .Treatment of zinc surface with cerium(Ⅲ) ni-trate to prevent zinc corrosion in aerated 0.5 M NaCl[J].Corrosion Science,2001,43(11):2201-2215. |
| [11] | 王济奎;方景礼 .镀锌层表面混合稀土转化膜的研究[J].中国稀土学报,1997,15(01):31-34. |
| [12] | LU Jin-tang,WU Hai-jiang,KONG Gang,CHE Chun-shan,XU Qiao-yu.Growth and corrosion behavior of rare earth film on hot-dip galvanized steel[J].中国有色金属学会会刊（英文版）,2006(06):1397-1401. |
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