Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution

doi:10.1016/j.jmst.2018.09.001

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution
	Xu, Wenhua 1,2; Han, En-Hou 2; Wang, Zhenyu 2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2019
卷号	35 期号:1 页码:64-75
关键词	Tannic acid Unrusted carbon steel Ferric-tannates EIS Corrosion
ISSN号	1005-0302
DOI	10.1016/j.jmst.2018.09.001
通讯作者	Han, En-Hou(ehhan@imr.ac.cn)
英文摘要	Corrosion behavior of unrusted Q235 carbon steel was investigated in 3.5% NaCl solutions with 1-5 wt% tannic acid addition, using electrochemical methods including electrochemical impedance spectra (EIS), potentiodynamic polarization and scanning vibrating electrode technique (SVET) combined with surface analysis. Results show that the corrosion rate decreases with increasing tannic acid concentration. As compared with tannic acid-free solution, 1% tannic acid does not provide inhibition effect during the whole immersion, while inhibition effect is observed for 3% tannic acid after 8 h and for 5% tannic acid after 4 h. The inhibition efficiency by weight loss measurements (eta(w)) for 1%, 3%, and 5% tannic is around -17.2%, 40.3%, and 51.5%, respectively. Corrosion of unrusted carbon steel in the presence of tannic acid is attributed to the joint effect of tannic acid adsorption and pH decrease. Formation of ferric-tannates is verified by X-ray photoelectron spectroscopy (XPS) and Raman spectra. The reaction mechanism between tannic acid and unrusted carbon steel is proposed. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Key Technology of Corrosion Control on Wind Power Equipment Academician Workstation Project[2013B090400023]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000449263900010
资助机构	Key Technology of Corrosion Control on Wind Power Equipment Academician Workstation Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130259]
专题	金属研究所_中国科学院金属研究所
通讯作者	Han, En-Hou
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xu, Wenhua,Han, En-Hou,Wang, Zhenyu. Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(1):64-75.
APA	Xu, Wenhua,Han, En-Hou,&Wang, Zhenyu.(2019).Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(1),64-75.
MLA	Xu, Wenhua,et al."Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.1(2019):64-75.