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Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil
Qin, Qingyu1,2; Wei, Boxin1,2; Bai, Yunlong1,3; Fu, Qi1,2; Xu, Jin1,3; Sun, Cheng1,3; Wang, Chuan1,3; Wang, Zhenyao1,3
Corresponding AuthorXu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
2021-02-01
Source PublicationENGINEERING FAILURE ANALYSIS
ISSN1350-6307
Volume120Pages:16
AbstractEffects of alternating currents (AC) with different frequencies on corrosion behavior of X80 pipeline steel have been investigated in coastal saline soil using polarization curves, electrochemical impedance spectroscopy, weight-loss test and surface analysis techniques. Results show that the corrosion rate of the steel specimen decreases with the AC frequency increasing, when the AC frequency is 20 Hz, the corrosion rate is about 5.9 times higher than that without the AC interference, and the corrosion rate is only 1.5 times higher than that without the AC interference when the AC frequency increasing to 400 Hz. There is a power function relationship, y = 1.66x(-0.5), between the corrosion rate and the AC frequency. At low AC frequencies, the corrosion product films formed on the specimen surfaces contain more defects (holes and tunnels) than those at high frequencies, resulting in severe pitting corrosion.
KeywordX80 pipeline steel Soil corrosion AC frequency Pitting corrosion
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.engfailanal.2020.105065
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771213] ; National Natural Science Foundation of China[51871228] ; National Natural Science Foundation of China[51471176]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Characterization & Testing
WOS IDWOS:000604261700001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158925
Collection中国科学院金属研究所
Corresponding AuthorXu, Jin; Sun, Cheng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Liaoning Shenyang Soil & Atmosphere Corros Mat Na, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Qin, Qingyu,Wei, Boxin,Bai, Yunlong,et al. Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil[J]. ENGINEERING FAILURE ANALYSIS,2021,120:16.
APA Qin, Qingyu.,Wei, Boxin.,Bai, Yunlong.,Fu, Qi.,Xu, Jin.,...&Wang, Zhenyao.(2021).Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil.ENGINEERING FAILURE ANALYSIS,120,16.
MLA Qin, Qingyu,et al."Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil".ENGINEERING FAILURE ANALYSIS 120(2021):16.
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