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Effects of the Different Solid Deposits on the Corrosion Behavior of Pure Fe in Water Vapor at 500 degrees C
Tang, Yanbing1,2; Shen, Xinwang3; Liu, Zhihong3; Li, Ying1
Corresponding AuthorLi, Ying(liying@imr.ac.cn)
2020-09-11
Source PublicationSCANNING
ISSN0161-0457
Volume2020Pages:8
AbstractA 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.
Funding OrganizationNational Natural Science Fund of China
DOI10.1155/2020/6280725
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Fund of China[51371181] ; National Natural Science Fund of China[51671198]
WOS Research AreaInstruments & Instrumentation ; Microscopy
WOS SubjectInstruments & Instrumentation ; Microscopy
WOS IDWOS:000574323400001
PublisherWILEY-HINDAWI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140705
Collection中国科学院金属研究所
Corresponding AuthorLi, Ying
Affiliation1.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
Recommended Citation
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.
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