以球状锌粉和片状锌粉为原始锌粉制备了机械镀锌层,采用SEM观察了镀层的结构形貌;采用XRD分析了锌粉颗粒形状对镀层物相组成的影响;采用表阿洛氏硬度计分析了锌粉颗粒形状对镀层表面硬度的影响;采用中性盐雾实验和电化学极化方法分析了锌粉颗粒形状对镀层耐腐蚀性能的影响.研究结果表明:锌粉颗粒形状对镀层表面硬度的提高基本没有影响,片状锌粉制备镀层的表面硬度的均匀性要优于球状锌粉制备的镀层;锌粉颗粒形状对镀层的物相组成没有影响,两种锌粉制备的镀层中郁没有生成新的合金相;片状锌粉制备的镀层的耐腐蚀性能要稍微优于球状锌粉制备的镀层.
Zinc coatings were prepared by mechanically deposition method with spherical zinc particle and lamellar zinc particle, respectively. SEM and XRD were employed to study the structure and the phase constitutes of the coating. Surface hardness was studied by surface Rockwell hardness tester. The effects of particle shapes of zinc powders on the coating anticorrosion property was studied by salt spray test and potentiodynamic polarization. The results show that particle shape of zinc powders has no effects on surface hardness and phase constitutes of the coating. The corrosion resistance of coating obtained by lamellar zinc particle is better than that obtained by spherical zinc particle.
参考文献
| [1] | Knudsen OO;Steinsmo U;Bjordal M .Zinc-rich primers - Test performance and electrochemical properties[J].Progress in Organic Coatings: An International Review Journal,2005(3):224-229. |
| [2] | Havlik J;Kalendova A;Vesely D .Electrochemical, chemical and barrier action of zinc dust/anticorrosive pigments containing coatings[J].The journal of physics and chemistry of solids,2007(5/6):1101-1105. |
| [3] | Kalendova A;Kalenda P;Vesely D .Comparison of the efficiency of inorganic nonmetal pigments with zinc powder in anticorrosion paints[J].Progress in Organic Coatings: An International Review Journal,2006(1):1-10. |
| [4] | 李铁龙,杨新岐,姜海龙,孙莉.锌粉特性对机械镀锌层性能的影响[J].材料保护,2005(11):14-16. |
| [5] | KALENDOVá A .Effects of particle sizes and shapes of zinc metal on the properties of anticorrosive coatings[J].Progress in organic Coatings,2003,46:324-332. |
| [6] | 刘丽,何明奕.机械镀锌快速活化工艺[J].金属热处理,2000(06):21-23. |
| [7] | 王胜民,何明奕,刘丽,赵晓军,谭蓉.机械镀锌沉积机理的研究[J].材料科学与工艺,2008(04):535-538. |
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