| 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 Author | Xu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn) |
| 2021-02-01 | |
| Source Publication | ENGINEERING FAILURE ANALYSIS
 |
| ISSN | 1350-6307 |
| Volume | 120Pages:16 |
| Abstract | Effects 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. |
| Keyword | X80 pipeline steel Soil corrosion AC frequency Pitting corrosion |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.engfailanal.2020.105065 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51771213] ; National Natural Science Foundation of China[51871228] ; National Natural Science Foundation of China[51471176] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000604261700001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158925 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xu, Jin; Sun, Cheng |
| Affiliation | 1.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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