为了提高热浸镀锌层的耐蚀性,在锌浴中添加少量的Ni和V,获得了Zn-0.05%Ni、Zn-0.05%Ni-0.05%V镀层.利用电化学阻抗、极化及中性盐雾腐蚀测试,研究了Ni和V对镀层耐蚀性的影响.结果表明:与纯Zn镀层相比,Zn-0.05%Ni、Zn-0.05%Ni-0.05%V镀层在5%NaCl溶液中的电化学阻抗增大,自腐蚀电位正移,极化电阻增大,腐蚀电流密度减小,耐蚀性提高,其中,Zn-0.05%Ni-0.05%V镀层耐蚀性最佳;Ni、V的加入在一定程度上抑制了阳极反应和阴极反应,延缓了白锈的产生,镀层耐蚀性能提高.
参考文献
| [1] | Marde A R .The metallurgy of zinc-coated steel[J].Prong in Materials Science,2000,45:191-271. |
| [2] | N. Pistofidis;G. Vourlias;S. Konidaris;E. Pavlidou;A. Stergiou;G. Stergioudis .Microstructure of zinc hot-dip galvanized coatings used for corrosion protection[J].Materials Letters,2006(6):786-789. |
| [3] | 徐秀清,王顺兴.连续热镀锌工艺进展与展望[J].表面技术,2007(01):71-74. |
| [4] | 许乔瑜,卢锦堂,陈锦虹,蒙继龙,孔纲,刘丽霞.活性钢热浸锌镍合金镀层工艺与性能[J].材料导报,2001(08):23-25. |
| [5] | N.C. Hosking;M.A. Stroem;P.H. Shipway;C.D. Rudd .Corrosion resistance of zinc-magnesium coated steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2007(9):3669-3695. |
| [6] | Verma A R B;Van Ooij W J .High-temperature batch hot-dip galvanizing.(Part 1):general description of coatings formed at 560℃[J].Surface and Coatings Technology,1997,89(1/2):132-142. |
| [7] | 于兴哲,宋月清,崔舜,李明,周晓华.钒基合金的研究现状和进展[J].材料开发与应用,2006(06):36-40. |
| [8] | Hamlaoui Y;Pedraza F;Tifouti L .Corrosion monitoring of galvanized coatings throush electrochemical impedance spectroscopy[J].Corrosion Science,2008,50(06):1558-1566. |
| [9] | 张杰,于振花,李焰.Zn-55%Al-Si合金镀层钢丝在海水中的耐蚀性能[J].材料研究学报,2008(04):347-352. |
| [10] | Ma Houyi;Chen Shenhao;Yin Bingsheng et al.Impendanee spectroscopic study of corrosion inhibition of copper by surfactants in the acidic solutions[J].Corrosion Science,2003,45(05):867-882. |
| [11] | Liu, XW;Xiong, JP;Lv, YW;Zuo, Y .Study on corrosion electrochemical behavior of several different coating systems by EIS[J].Progress in Organic Coatings,2009(4):497-503. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%