Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution

Corrosion behavior of X65 pipeline steels with different microstructures under alternating current (AC) interference was investigated in acid soil simulation solution by potentiodynamic polarization curve, potentiostatic polarization curve and immersion test. The results show that superimposed AC ca...

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Main Authors: Zhu, Meijiao, Yuan, Y. F., Yin, Si Min, Yu, Gao Hong, Guo, Shao Yi, Huang, Yizhong, Du, Cui Wei
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/147373
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1473732024-05-14T02:40:53Z Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution Zhu, Meijiao Yuan, Y. F. Yin, Si Min Yu, Gao Hong Guo, Shao Yi Huang, Yizhong Du, Cui Wei School of Materials Science and Engineering Engineering::Materials AC Interference Microstructure Corrosion behavior of X65 pipeline steels with different microstructures under alternating current (AC) interference was investigated in acid soil simulation solution by potentiodynamic polarization curve, potentiostatic polarization curve and immersion test. The results show that superimposed AC causes a sharp increase in corrosion current density of X65 steel. With the increase in i , the corrosion current densities of steels with various microstructures increase, especially at high i . Hot-rolled steel mainly experiences uniform corrosion, with very slight pit corrosion. Serious corrosion degrees with intensive corrosion pits can be observed on the surfaces of normalized and quenched microstructure steels. The annealed steel exhibits the feature of non-uniform corrosion with some pitting. The steels with various microstructures applied with AC have different corrosion resistance. The normalized steel shows the worst corrosion resistance, then the quenched microstructure, and the hot-rolled steel displays the optimum corrosion resistance. The difference in the microstructure can result in difference in corrosion degree and occurrence position of pitting corrosion of X65 steel. The normalized microstructure composed of polygonal ferrite and a large amount of pearlite and bainite is the most susceptible to AC corrosion. AC AC This work was supported by the National Natural Science Foundation of China, the Natural Science Foundation of Zhejiang Province (No. LY18E010004) and the National R&D Infrastructure and Facility Development Program of China (No. 2005DKA10400). 2021-03-30T05:37:53Z 2021-03-30T05:37:53Z 2019 Journal Article Zhu, M., Yuan, Y. F., Yin, S. M., Yu, G. H., Guo, S. Y., Huang, Y. & Du, C. W. (2019). Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution. Journal of Materials Engineering and Performance, 28(3), 1698-1706. https://dx.doi.org/10.1007/s11665-019-03929-z 1059-9495 https://hdl.handle.net/10356/147373 10.1007/s11665-019-03929-z 2-s2.0-85061627145 3 28 1698 1706 en Journal of Materials Engineering and Performance © 2019 ASM International. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
AC Interference
Microstructure
spellingShingle Engineering::Materials
AC Interference
Microstructure
Zhu, Meijiao
Yuan, Y. F.
Yin, Si Min
Yu, Gao Hong
Guo, Shao Yi
Huang, Yizhong
Du, Cui Wei
Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution
description Corrosion behavior of X65 pipeline steels with different microstructures under alternating current (AC) interference was investigated in acid soil simulation solution by potentiodynamic polarization curve, potentiostatic polarization curve and immersion test. The results show that superimposed AC causes a sharp increase in corrosion current density of X65 steel. With the increase in i , the corrosion current densities of steels with various microstructures increase, especially at high i . Hot-rolled steel mainly experiences uniform corrosion, with very slight pit corrosion. Serious corrosion degrees with intensive corrosion pits can be observed on the surfaces of normalized and quenched microstructure steels. The annealed steel exhibits the feature of non-uniform corrosion with some pitting. The steels with various microstructures applied with AC have different corrosion resistance. The normalized steel shows the worst corrosion resistance, then the quenched microstructure, and the hot-rolled steel displays the optimum corrosion resistance. The difference in the microstructure can result in difference in corrosion degree and occurrence position of pitting corrosion of X65 steel. The normalized microstructure composed of polygonal ferrite and a large amount of pearlite and bainite is the most susceptible to AC corrosion. AC AC
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Zhu, Meijiao
Yuan, Y. F.
Yin, Si Min
Yu, Gao Hong
Guo, Shao Yi
Huang, Yizhong
Du, Cui Wei
format Article
author Zhu, Meijiao
Yuan, Y. F.
Yin, Si Min
Yu, Gao Hong
Guo, Shao Yi
Huang, Yizhong
Du, Cui Wei
author_sort Zhu, Meijiao
title Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution
title_short Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution
title_full Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution
title_fullStr Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution
title_full_unstemmed Corrosion behavior of pipeline steel with different microstructures under AC interference in acid soil simulation solution
title_sort corrosion behavior of pipeline steel with different microstructures under ac interference in acid soil simulation solution
publishDate 2021
url https://hdl.handle.net/10356/147373
_version_ 1800916276250411008