| 锌镀层硅酸盐钝化膜的耐腐蚀性能 |
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| 引用本文： | 董鹏,张英杰.锌镀层硅酸盐钝化膜的耐腐蚀性能[J].材料保护,2010,43(10). |
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| 作者姓名： | 董鹏 张英杰 |
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| 作者单位： | 昆明理工大学冶金与能源工程学院,云南,昆明,650093;昆明理工大学冶金与能源工程学院,云南,昆明,650093;云南民族大学化学与生物技术学院,云南,昆明,650031 |
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| 基金项目： | 云南省自然科学基金(2008CD147)资助 |
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| 摘 要： | 为了考察锌镀层硅酸盐钝化膜的耐腐蚀性能,通过中性盐雾试验、3%CuSO4点滴试验对比研究了锌镀层、硅酸盐钝化膜及低铬酸盐钝化膜的耐腐蚀性能,并用极化曲线电化学测试方法研究了硅酸盐钝化膜的电化学性能。结果表明:硅酸盐钝化膜明显提高了锌镀层的耐腐蚀性能,其耐蚀性优于低铬酸盐钝化膜;硅酸盐钝化膜也明显提高了锌镀层的自腐蚀电位,有效地控制了其腐蚀的电化学过程,属阳极控制型。锌镀层硅酸盐钝化膜具有较高的耐蚀性能。
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| 关 键 词： | 硅酸盐钝化膜 锌镀层 耐蚀性 |
Corrosion Resistance of Silicate Passivation Film on Electro-deposited Zinc Coating |
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| DONG Peng,ZHANG Ying-jie.Corrosion Resistance of Silicate Passivation Film on Electro-deposited Zinc Coating[J].Journal of Materials Protection,2010,43(10). |
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| Authors: | DONG Peng ZHANG Ying-jie |
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| Affiliation: | DONG Peng1,ZHANG Ying-jie1,2(1.Faculty of Metallurgical , Energy Engineering,Kunming University of Technology,Kunming 650093,China,2.School of Chemistry , Biotechnology,Yunnan University of Nationalities,Kunming 650031,China). |
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| Abstract: | Cailiao Baohu 2010,43(10),04 ~06(Ch).The corrosion resistance of electrodeposited zinc coating,silicate passivation film and passivation film of low-valence chromate was comparatively evaluated by making use of neutral salt spray tests and dropping tests of CuSO4 solution(mass fraction 3%).Besides,the electrochemical performance of the silicate passivation film atop electrodeposited zinc coating was investigated using potentiodynamic polarization technique.Results indicate that silicate passivation film is ... |
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| Keywords: | silicate passivation film electrodeposited zinc coating corrosion resistance |
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