Indoor Accelerated Corrosion Kinetics of Weathering Steel and Its Service Life Prediction

被引:12
作者
Huang, Feng [1 ]
Zhu, Tengwei [1 ]
Zhou, Xuejun [2 ]
Liu, Jing [1 ]
Chen, Jiqing [2 ]
机构
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
[2] Wuhan Iron & Steel Grp Corp, Wuhan 430080, Peoples R China
基金
中国国家自然科学基金;
关键词
Raman spectroscopy; rust; steel; weight loss; ATMOSPHERIC CORROSION; RAMAN-SPECTROSCOPY; RUST; CARBON;
D O I
10.5006/1196
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The indoor accelerated corrosion of 09CuPCrNi weathering steel in simulated industrial atmosphere was investigated by the corrosion weight-loss method, field emission scanning electron microscopy (FE-SEM), x-ray diffraction (XRD), and Raman spectroscopy. The results indicated that the indoor accelerated corrosion kinetics of 09CuPCrNi weathering steel could be divided into two stages with different log (thickness loss, D)-log (time, t) fitting functions. The second stage of corrosion corresponded to the protective rust layer that formed. Three correlation models involving atmospheric corrosion and accelerated indoor corrosion were developed based on the kinetic model of the second stage of the accelerated indoor corrosion. Those three models corresponded to three atmospheric corrosion stations located in Beijing, Jiangjin, and Guangzhou (China), respectively. This indoor accelerated method presented a better accelerated effect for Beijing atmospheric environment.
引用
收藏
页码:819 / 827
页数:9
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