Effects of the Different Solid Deposits on the Corrosion Behavior of Pure Fe in Water Vapor at 500 degrees C

doi:10.1155/2020/6280725

IMR OpenIR

	Effects of the Different Solid Deposits on the Corrosion Behavior of Pure Fe in Water Vapor at 500 degrees C
	Tang, Yanbing 1,2; Shen, Xinwang 3; Liu, Zhihong 3; Li, Ying 1
通讯作者	Li, Ying(liying@imr.ac.cn)
	2020-09-11
发表期刊	SCANNING
ISSN	0161-0457
卷号	2020 页码:8
摘要	A comprehensive corrosion investigation of pure Fe in an environment of solid sodium salt deposit (i.e., NaCl or Na2SO4) with mixtures of H2O and O(2)at 500 degrees C was conducted by mass gain measurement, X-ray diffraction (XRD), scanning electron microscope (SEM), potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). The results showed that corrosion rates were accelerated with solid NaCl or Na2SO4 deposit due to their reaction with the formed protective scale of Fe2O3 and subsequently resulted in its breakdown. The corrosion rate of pure Fe with solid NaCl is higher than that with solid Na2SO4 because of the lower activation energy (Ea) for chemical reaction of Fe in solid NaCl+H2O+O-2 (i.e., 140.5 kJ/mol) than that in solid Na2SO4+H2O+O-2 (i.e., 200.9 kJ/mol). Notably, the electrochemical corrosion rate of pure Fe with solid NaCl deposit,1.16x10(-4) A/cm(2), was a little lower than that with solid Na2SO4 deposit.
资助者	National Natural Science Fund of China
DOI	10.1155/2020/6280725
收录类别	SCI
语种	英语
资助项目	National Natural Science Fund of China[51371181] ; National Natural Science Fund of China[51671198]
WOS研究方向	Instruments & Instrumentation ; Microscopy
WOS类目	Instruments & Instrumentation ; Microscopy
WOS记录号	WOS:000574323400001
出版者	WILEY-HINDAWI
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/140705
专题	中国科学院金属研究所
通讯作者	Li, Ying
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Jiangsu Univ Sci & Technol, Marine Equipment & Technol Inst, Zhenjiang 212003, Jiangsu, Peoples R China 3.Jiangsu Univ Sci & Technol, Sch Mat Sci & Technol, Zhenjiang 212003, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Tang, Yanbing,Shen, Xinwang,Liu, Zhihong,et al. Effects of the Different Solid Deposits on the Corrosion Behavior of Pure Fe in Water Vapor at 500 degrees C[J]. SCANNING,2020,2020:8.
APA	Tang, Yanbing,Shen, Xinwang,Liu, Zhihong,&Li, Ying.(2020).Effects of the Different Solid Deposits on the Corrosion Behavior of Pure Fe in Water Vapor at 500 degrees C.SCANNING,2020,8.
MLA	Tang, Yanbing,et al."Effects of the Different Solid Deposits on the Corrosion Behavior of Pure Fe in Water Vapor at 500 degrees C".SCANNING 2020(2020):8.