(Ni-P)/(TiO2/ZnO)复合涂层的制备及其在天然海水中的耐蚀性
Preparation of (Ni-P)/(TiO2/ZnO) Composite Coating and its Anti-corrosion Behavior in Natural Seawater
摘 要
采用化学镀和溶胶-凝胶技术在碳钢表面制备了(Ni-P)/(TiO2/ZnO)复合涂层。采用光学显微镜、扫面电镜观察涂层表面形貌; 采用能谱及X射线衍射技术分析涂层的成分和相组成; 采用电化学极化曲线及阻抗谱评价涂层在天然海水中的耐蚀性。结果表明, (Ni-P)/(TiO2/ZnO)复合涂层较之Ni-P涂层具有更好的耐海水腐蚀性能; 在Ni-P涂层表面直接制备TiO2/ZnO复合薄膜并进行350 ℃热处理所获得的复合涂层具有最优的耐天然海水腐蚀性能。
TiO2/ZnO
复合涂层
天然海水
耐蚀性
Ni-P
TiO2/ZnO
composite coating
natural seawater
anti-corrosion
Abstract
(Ni-P)/(TiO2/ZnO) composite coatings were prepared on carbon steel by electroless deposition technique and sol-gel method. The surface morphology and phase composition of the coating were characterized by optical microscopy, scanning electron microscopy, and X-ray diffraction. The anti-corrosion behavior in natural seawater was assessed by measurements of potentiodynamic polarization curves and electrochemical impedance spectroscopy. The results showed that the (Ni-P)/(TiO2/ZnO) composite coating had better anti-corrosion behavior than the Ni-P coating. The composite coating fabricated by preparing TiO2/ZnO thin films directly on the Ni-P coating and then processing heat treatment at 350℃ had the best anti-corrosion property in seawater.
中图分类号 TG174.3
所属栏目 试验研究
基金项目 山东省优秀中青年科学家科研奖励基金(BS2009CL016); 中央高校基本科研业务费专项资金(201113002)
收稿日期 2012/5/28
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备注田进涛, 副教授, 博士,
引用该论文: YU Dong-yun,XU Xing-ming,TIAN Jin-tao. Preparation of (Ni-P)/(TiO2/ZnO) Composite Coating and its Anti-corrosion Behavior in Natural Seawater[J]. Corrosion & Protection, 2013, 34(4): 298
被引情况:
【1】张 菁,刘 峥,郭亚晋,莫国芳, "Ni-P-SnO2复合镀层的制备及其性能",腐蚀与防护 37, 693-700(2016)
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【7】Floyd F, Avudaiappan S, Gibson J, et al.Using electrochemical impedance spectroscopy to predict the corrosion resistance of unexposed coated metal panels [J].Progress in Organic Coatings, 2009, 66(1):8-34.
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