以环境友好型钼酸盐化学转化膜替代传统高污染的铬酸盐钝化膜,是镀锌层钝化工艺技术的发展方向.随着累计处理热浸镀锌钢板面积的增加,新制的钼酸盐钝化处理液会逐渐失去钝化能力.探索出一种能够使失效的处理液恢复钝化性能的氧化型添加剂,研究了添加剂对失效钝化液性能恢复的影响.用电化学极化曲线研究了转化膜的腐蚀行为.结果表明,添加剂的补加使极化曲线阳极分支重新出现钝化特征,即失效钝化液恢复钝化能力.扫描电子显微镜观察表明,补加添加剂后形成的转化膜表面平整、均匀.X-射线能量分析表明,转化膜中含有Mo、P、O和Zn等元素.经24h盐雾试验表面转化膜具有较好的抗盐雾腐蚀能力.
参考文献
| [1] | Treacy GM;Richardson MOW;Wilcox GD.Behaviour of molybdate-passivated zinc coated steel exposed to corrosive chloride environments[J].Journal of Applied Electrochemistry,19995(5):647-654. |
| [2] | C.G. da Silva;I.C.P. Margarit-Mattos;O.R. Mattes;H. Perrot;B. Tribollet;V. Vivier.The Molybdate-zinc Conversion Process[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,20091(1):151-158. |
| [3] | Cheng-Yang Tsai;Jen-Shou Liu;Pei-Li Chen;Chao-Sung Lin.A two-step roll coating phosphate/molybdate passivation treatment for hot-dip galvanized steel sheet[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,201010(10):3385-3393. |
| [4] | 牟世辉.镀锌层钼酸盐钝化工艺研究[J].电镀与精饰,2009(04):12-16. |
| [5] | 周婉秋;刘艳荣;王建;盛莉;王波;张琪.热镀锌板钼酸盐转化膜制备及耐腐蚀性能研究[J].沈阳师范大学学报（自然科学版）,2013(2):148-152. |
| [6] | 盛莉;周婉秋;王建;辛士刚;康艳红;武士威.热镀锌板钼酸盐化学转化溶液寿命及其成分变化规律的研究[J].电镀与精饰,2013(12):34-38. |
| [7] | 吴海江;卢锦堂.热镀锌钢板钼酸盐/硅烷复合膜层的耐腐蚀性能[J].材料保护,2008(10):10-13. |
| [8] | Magalhaes AAO;Margarit ICP;Mattos OR.Molybdate conversion coatings on zinc surfaces[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,20042(2):433-440. |
| [9] | T. K. Rout;N. Bandyopadhyay.Effect of molybdate coating for white rusting resistance on galvanized steel[J].Anti-Corrosion Methods and Materials,20071(1):16-20. |
| [10] | D. E. Walker;G. D. Wilcox.Molybdate based conversion coatings for zinc and zinc alloy surfaces: a review[J].Transactions of the Institute of Metal Finishing: The International Journal for Surface Engineering and Coatings,20085(5):251-259. |
| [11] | O. D. Lewis;D. Greenfield;R. Akid;R. H. Dahm;G. D. Wilcox.Conversion coatings for zinc electrodeposits from modified molybdate solutions[J].Transactions of the Institute of Metal Finishing: The International Journal for Surface Engineering and Coatings,20102(2):107-116. |
| [12] | Y.K. Song;F. Mansfeld.Development of a Molybdate-Phosphate- Silane-Silicate (MPSS) coating process for electrogalvanized steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,20061(1):154-164. |
| [13] | Liu, D.-L.;Yang, Z.-G.;Wang, Z.-Q.;Zhang, C..Synthesis and evaluation of corrosion resistance of molybdate-based conversion coatings on electroplated zinc[J].Surface & Coatings Technology,20107(7):2328-2334. |
| [14] | Wharton JA.;Ross DH.;Treacy GM.;Wilcox GD.;Baldwin KR..An EXAFS investigation of molybdate-based conversion coatings[J].Journal of Applied Electrochemistry,20037(7):553-561. |
| [15] | 宫丽;卢燕平.热镀锌钢板钼酸盐钝化膜的改性及耐蚀性[J].钢铁研究学报,2007(3):88-92. |
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