热镀锌层钒酸盐转化膜的成膜机理
Film Formation Mechanism of Vanadium Oxide Conversion Coating on Hot-dip Galvanizing Layer
摘 要
采用扫描电镜观察不同成分的钒酸盐转化膜在形核、生长过程中的微观形貌；采用化学法对转化膜质量进行了测量；采用XPS对转化膜的化合物成分组成进行了分析。结果表明：钒酸盐转化膜主要是由低价钒化合物沉积、含锌和钒等盐类的晶体长大而组成的转化膜，转化膜质量在一定范围内随偏钒酸钠含量的增加而增加，钒酸盐钝化用于热镀锌层表面处理具备很大的潜力。
后处理
钒酸盐转化膜
hot-dip galvanizing
post-processing
vanadate conversion film
Abstract
Scanning electron microscope was used to observe the micro morphology of conversion coating in the process of nucleation and growth, the mass of conversion coating was tested by chemical method, and XPS was used to analyze the compound ingredients of the conversion coating. The results show that the vanadium acid salt conversion films were mainly composed of low vanadium compound deposition and vanadium and zinc salt crystals grown up. The weight of conversion film increased with increasing the content of sodium metavanadate within a certain range, which indicated that vanadate passivation had great potential for surface treatment of hot dip galvanized coating.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201905012
所属栏目 应用技术
基金项目
收稿日期 2017/11/20
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联系人作者俞钢强(ygq2826@163.com)
引用该论文: ZHANG Ziyue,YU Gangqiang,JIANG Sheming,GAO Zhiqiang,LIU Xin. Film Formation Mechanism of Vanadium Oxide Conversion Coating on Hot-dip Galvanizing Layer[J]. Corrosion & Protection, 2019, 40(5): 370
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参考文献
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【3】NIU L Y,CHANG S Y H,TONG X,et al. Analysis of characteristics of vanadate conversion coating on the surface of magnesium alloy[J]. Jounal of Alloys and Compounds,2014(617):214-218.
【4】GUAN H,BUCHHEIT R G. Corrosion protection of aluminum alloy 2024-T3 by vanadate conversion coatings[J]. Corrosion,2004(60):284-296.
【5】YANG K H,GER M D,WU W H H,et al. Study of vanadium-based chemical conversion coating on the corrosion resistance of magnesium alloy[J]. Materials Chemistry and Physics,2007(101):480-485.
【6】TEDIM J,ZHELUDKEVICH M L,BASTOS A C,et al. Influence of preparation conditions of layered double hydroxide conversion films on corrosion protection[J]. Electromagnetic,2014(117):164-171.
【7】BIESTEK T,WEBER J. Electrolytic and chemical conversion coatings[M]. Warsa:Wydawnictwa Naukowo-Techniczne,1976:10-11.
【8】MASAAKI Y,TAKAFUMI Y,AKIRA M,et al. NKK galvalume steel sheet:genius coat[J]. NKK Technical Review,2000(83):37-41.
【9】NAZAROV A,THIERRY D,PROSEK T,et al. Protective action of vanadate at defected areas of organic coatings on zinc[J]. Journal of The Electrochemical Society,2005,152(7):220-227.
【10】ZOU Z L,LI N,LI D Y,et al. A vanadium-based conversion coating as chromate replacement for electro galvanized steel substrates[J]. Journal of Alloys and Compounds,2011,509(2):503-507.
【11】GIORGETTI M,PASSERINI S,SMYRL W H,et al. In situ X-ray absorption spectroscopy characterization of V2O5 xerogel cathodes upon lithium intercalation[J]. Journal of the Electrochemical Society,1999,146(7):2387-2392.
【12】PEULTIER J,ROCCA E,STEINMETZ J. Zinc carboxylating:a new conversion treatment of zinc[J]. Corrosion Science,2003,45(8):1703-1716.
【13】TAKAYA M. Selactive determination method for vanadium (Ⅴ) and vanadium (Ⅳ) controlling the pH of media for a solid-liquid extraction column[J]. Industrial Health,2000,38(1):91-94.
【14】IMTIAZ M,RIZWAN M S,XIONG S L,et al. Vanadium,recent advancements and research prospects:a review[J]. Environment International,2015(80):79-88.
【15】WILLSKY G R,GOLDFINE A B,KOSTYNIAK P J,et al. Effect of vanadium (Ⅳ) compounds in the treatment of diabetes:in vivo and vitro studies with vanadyl sulfate and bIs (maltolato) oxovandium(Ⅳ)[J]. Jounal of Inorganic Biochemistry,2001m85(1):33-42.
【16】WANG P,DONG X C,SCHAEFER D W. Struture and water-barrier properties of vanadate-based corrosion inhibitior films[J]. Corrosion Science,2010,52(3):943-949.
【17】ABDEL S H,BUTT D P. Novel anti-corrosion nano-sized vanadia-based thin films prepared bysol-gel method for aluminum alloys[J]. Journal of Materials Processing Technology,2007,181(1/2/3):76-80.
【18】ZOU Z L,LI N,LI D Y. Progress in research on vanadate-based coatings on corrosion resistance[J]. Journal of Rare Earths,2007,25(S1):303-307.
【19】MOULDER J M F,STICKLE W F,SOBOL W F,et al. Handbook of X-ray photoelectron spectroscopy[M]. Eden Prairie:Perkin-Elmer Corporation,1992.
【20】YANG K H,GER M D,WU W H H,et al. Study of vanadium-based chemical conversion coating on the corrosion resistance of magnesium alloy[J]. Materials Chemistry and Physics,2007,101(2/3):480-485.
【21】POST K,ROBINS R G. Thermodynamic diagrams for the vanadium-water system at 298.15K[J]. Electrochimica Acta,1976,21(6):401-405.
【22】IANNUZZI M,KOVAC J,FRANKEL GS. A study of the mechanisms of corrosion inhibition of AA2024-T3by vanadates using the split cell technique[J]. Electrochimica Acta,200752(12):4032-4042.
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【24】IANNUZZI M,FRANKEL G S. Mechanisms of corrosion inhibition of AA2024-T3 by vanadates[J]. Corrosion Science,2007,49:2371-2391.
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