| 循环压力对环氧涂层在模拟深海环境中失效行为的影响 |
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| 引用本文： | 唐俊文,邵亚薇,张涛,孟国哲,王福会. 循环压力对环氧涂层在模拟深海环境中失效行为的影响[J]. 中国腐蚀与防护学报, 2011, 0(4) |
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| 作者姓名： | 唐俊文 邵亚薇 张涛 孟国哲 王福会 |
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| 作者单位： | 哈尔滨工程大学材料科学与化学工程学院腐蚀与防护实验室;中国科学院金属研究所金属腐蚀与防护国家重点实验室; |
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| 摘 要： | 在模拟深海环境下,利用电化学阻抗技术并结合重量法,研究了循环压力对纯环氧涂层在3.5mass%NaCl溶液中失效行为的影响。结果表明,循环压力条件下,涂层的阻抗行为呈周期性变化规律:在高压条件下浸泡时,有机涂层电容较高、涂层电阻较低;而常压条件下两者都较高。循环压力增大,腐蚀介质更容易扩散到涂层内部,使得涂层吸水量增加,涂层电阻降低,涂层防护性能恶化。
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| 关 键 词： | 环氧涂层 循环压力 深海腐蚀 电化学阻抗谱 |
EFFECT OF CYCLIC PRESSURE ON DEGRADATION BEHAVIOR OF EPOXY COATING IN SIMULATED DEEP OCEAN ENVIRONMENT |
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| TANG Junwen,SHAO Yawci,ZHANG Tao,MENG Guozhe,WANG Fuhui .Corrosion , Protection Laboratory,College of Materials Science , Chemical Engineering,Harbin Engineering University,Harbin ,.State Key Laboratory for Corrosion , Protection. EFFECT OF CYCLIC PRESSURE ON DEGRADATION BEHAVIOR OF EPOXY COATING IN SIMULATED DEEP OCEAN ENVIRONMENT[J]. Journal of Chinese Society For Corrosion and Protection, 2011, 0(4) |
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| Authors: | TANG Junwen SHAO Yawci ZHANG Tao MENG Guozhe WANG Fuhui .Corrosion Protection Laboratory College of Materials Science Chemical Engineering Harbin Engineering University Harbin .State Key Laboratory for Corrosion Protection |
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| Affiliation: | TANG Junwen~1,SHAO Yawci~1,ZHANG Tao~1,MENG Guozhe~1,WANG Fuhui~(1,2) 1.Corrosion and Protection Laboratory,College of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,2.State Key Laboratory for Corrosion and Protection,Institute of Metals Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | The effect of cyclic pressure on the degradation behavior of the epoxy coating on carbon steel surface in 3.5%NaCl solution in a simulated deep-ocean environment was studied using electrochemical impedance spectroscopy(EIS)and weight method.The results showed that the EIS characteristics displayed a periodic variation under the cyclic pressure condition.The coating capacitance at high pressure was higher and the coating resistance was lower than that at atmospheric pressure during immersion periods,respecti... |
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| Keywords: | epoxy coating cyclic pressure deep ocean corrosion electrochemical impedance spectroscopy(EIS) |
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