Corrosion behavior of coating with plasma sprayed 8YSZ on the surface of carbon steel

被引：0
|
作者：
刘扬佳 [1 ]
范习之 [1 ]
曾水冰 [1 ]
王盈 [2 ]
邹兵林 [2 ]
古立建 [2 ]
陈小龙 [2 ]
Zuhair Subhani Khan [2 ]
杨道武 [1 ]
曹学强 [1 ,2 ]
机构：
[1] Department of Chemical and Biological Engineering,Changsha University of Science and Technology
[2] State Key Laboratory of Rare Earth Resources Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences
来源：
JournalofRareEarths | 2012年 / 30卷 / 06期
基金：
中国国家自然科学基金;
关键词：
thermal barrier coating; carbon steel; corrosion behavior; electrochemical impedance spectroscopy; rare earths;
D O I：
暂无
中图分类号：
TG174.44 [金属复层保护];
学科分类号：
080503 ;
摘要：
The corrosion behavior of plasma sprayed 8YSZ(ZrO2 stabilized by 8 wt.%Y2O3)coating on the surface of carbon steel in seawater was investigated.The electrochemical impedance spectroscopy was used as a non-destructive evaluation technique to monitor the protection properties of the coating when it was immersed in seawater,and corrosion products were characterized by scanning electron microscopy,energy dispersive spectrometry and X-ray photoelectron spectroscopy.The results indicated that three time constants were obtained during the initial immersion period,and then a new time constant appeared due to the formation of rust layer,which was corresponding to the corrosion process.Corrosion products were formed on the coating surface as well as inside the coating,and the crystalline composition of the rust layer mainly consisted of γ-FeOOH.
引用
收藏
页码：592 / 598
页数：7
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