| 模拟污染潮湿大气环境下LY12CZ、LC4CS铝合金腐蚀行为研究 |
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| 引用本文： | 张正,宋诗哲,卢玉琢,陶蕾,吴钢. 模拟污染潮湿大气环境下LY12CZ、LC4CS铝合金腐蚀行为研究[J]. 中国腐蚀与防护学报, 2007, 27(3): 129-133 |
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| 作者姓名： | 张正 宋诗哲 卢玉琢 陶蕾 吴钢 |
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| 作者单位： | 1. 天津大学材料与科学工程学院,天津,300072
2. 天津大学材料与科学工程学院,天津,300072;金属腐蚀与防护国家重点实验室,沈阳,110016 |
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| 摘 要： | 建立了基于电化学噪声测试技术(EN)的铝合金大气腐蚀实时监检测方法.设计并制作了配套的电解池.运用所建立方法测试并计算得到了LY12CZ、LC4CS铝合金在pH值为中性恒温恒湿的模拟近海、海洋大气以及工业污染大气环境中的噪声电阻Rn和电位噪声功率密度谱高频线性部分斜率K,从腐蚀速度和腐蚀类型两方面研究了两种铝合金在模拟污染潮湿大气环境下的腐蚀行为,以及Cl-、NO3-和SO42-对铝合金大气腐蚀行为的影响和协同作用.
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| 关 键 词： | 电化学噪声 模拟大气 污染离子 |
| 文章编号： | 1005-4537（2007）03-0129-05 |
| 修稿时间： | 2006-09-10 |
CORROSION BEHAVIORS OF LY12CZ AND LC4CS ALUMINIUM ALLOYS IN SIMULATED ATMOSPHERE |
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| ZHANG Zheng,SONG Shizhe,LU Yuzhuo,TAO Lei,WU Gang. CORROSION BEHAVIORS OF LY12CZ AND LC4CS ALUMINIUM ALLOYS IN SIMULATED ATMOSPHERE[J]. Journal of Chinese Society For Corrosion and Protection, 2007, 27(3): 129-133 |
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| Authors: | ZHANG Zheng SONG Shizhe LU Yuzhuo TAO Lei WU Gang |
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| Affiliation: | 1. School of Material, Tianjin University, Tianjin 300072; 2. State Key Laboratory for Corrosion and Protection, Shenyang 110016 |
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| Abstract: | A real-time monitor method based on electrochemical noise(EN) was set up to study the atmospheric corrosion of aluminium alloy.The electrolytic cell was designed and made accordingly.Inshore,oceanic atmosphere and contaminative industrial atmosphere with neutral pH value,constant temperature and humidity were simulated.Using the established method atmospheric corrosion of the aluminum alloys LY12CZ and LC4CS was studied.The electrochemical noise resistance Rn and the slopes K of the potential power density spectrum(PDS) were gotten in EN test.The corrosion behavior of the aluminium alloys in simulated atmosphere,and influence of Cl-,NO-3 and SO2-4 in corrosion process of the aluminium alloys(LY12CZ and LC4CS) were studied with corrosion rate and corrosion type. |
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| Keywords: | LY12CZ LC4CS |
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