桥梁用耐候试验钢在中性干湿交替环境中的腐蚀行为
Corrosion Behavior of Weathering Test Steel for Bridge under Neutral Wet/Dry Alternate Condition
摘 要
在3.5% NaCl中性干湿交替环境中,对高性能桥梁用耐候试验钢和其对比材料09CuPCrNi-A钢开展腐蚀试验, 探讨其在模拟海洋大气环境下的初期腐蚀动力学曲线趋势及其腐蚀规律; 利用扫描电子显微镜和能谱仪分析在腐蚀试验初期的不同阶段, 高性能桥梁用耐候试验钢和其对比材料试样的表面形貌及微区成分, 从而探讨它们在此种环境下的腐蚀反应历程。
桥梁
中性环境
干湿交替
腐蚀历程
weathering steel
bridge
neutral environment
wet/dry alternate condition
corrosion process
Abstract
The corrosion behaviors of a high-performance weathering test steel for bridge and the reference steel 09CuPCrNi-A were studied under 3.5% NaCl neutral wet/dry alternate condition for revealing their dynamic curve tendency of primary corrosion and the rusting law in the simulative marine atmosphere environment. By observing the corrosion evolution of surface morphology and analyzing the composition by scanning electronic microscopy (SEM) and energy dispersive spectrometer (EDS) in different stages, the corrosion mechanism was further discussed in details.
中图分类号 TG172
所属栏目 试验研究
基金项目
收稿日期 2011/1/4
修改稿日期
网络出版日期
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备注徐小连,教授级高工,
引用该论文: XU Xiao-lian,ZHONG Bin,AI Fang-fang,CHEN Yi-qing,XIAO Yu,LI Lin. Corrosion Behavior of Weathering Test Steel for Bridge under Neutral Wet/Dry Alternate Condition[J]. Corrosion & Protection, 2012, 33(1): 38
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参考文献
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【2】董杰,董俊华,韩恩厚,等. 低碳钢带锈电极的腐蚀行为[J]. 腐蚀科学与防护技术,2006,18(6):414-417.
【3】Kaesche H. National association of corrosion engineers,metallic corrosion[M]. Berlin,Germany:1985.
【4】Nishimura T,Katayama H,Noda K,et al. Effect of sodium chloride on corrosion behavior of low-allow arell under wet/dry condition[J]. Corrosion,2000,56:935-938.
【5】Veleva L,Maldonado L. Classification of atmospheric corrosion in humid tropical climates[J]. British Corrosion Journal,1998,33(1):53-57.
【6】Sarkar P P,Kumar P,Manna M K,et al. Microstructural influence on the electrochemical corrosion behavior of dual-phase steels in 3.5% NaCl solution[J]. Mareials Letters,2005,59(19-20):2488-2491.
【7】Chen Y Y,Tzeng H J,Wei L I,et al. Corrosion resistance and mechanical properties of low-alloy steels under atmospheric conditions[J]. Corrosion Science,2005,47(9):1001-1021.
【8】岳丽杰,王龙妹,陈蕴博. 稀土对耐候钢耐蚀性能的影响研究[J]. 材料工程, 2009, 54(3):74-77.
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