Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits
Stray current corrosion in buried pipelines can cause serious material damage in a short period of time. However, the available methods for mitigating stray current corrosion are still insufficient. In this study, as a countermeasure against stray current corrosion, calcareous depositions were appli...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/24/7905 |
| _version_ | 1797502676779401216 |
|---|---|
| author | Sin-Jae Kang Min-Sung Hong Jung-Gu Kim |
| author_facet | Sin-Jae Kang Min-Sung Hong Jung-Gu Kim |
| author_sort | Sin-Jae Kang |
| collection | DOAJ |
| description | Stray current corrosion in buried pipelines can cause serious material damage in a short period of time. However, the available methods for mitigating stray current corrosion are still insufficient. In this study, as a countermeasure against stray current corrosion, calcareous depositions were applied to reduce the total amount of current flowing into pipelines and to prevent corrosion. This study examined the reduction of stray current corrosion via the formation of calcareous deposit layers, composed of Ca, Mg, and mixed Ca and Mg, at the current inflow area. To verify the deposited layers, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) were performed. The electrochemical tests revealed that all three types of calcareous deposits were able to effectively act as current barriers, and that they decreased the inflow current at the cathodic site. Among the deposits, the CaCO<sub>3</sub> layer mitigated the stray current most effectively, as it was not affected by Mg(OH)<sub>2</sub>, which interferes with the growth of CaCO<sub>3</sub>. The calcium-based layer was very thick and dense, and it effectively blocked the inflowing stray current, compared with the other layers. |
| first_indexed | 2024-03-10T03:38:30Z |
| format | Article |
| id | doaj.art-cd604799f0914d3d9f4ffd9038d7cccf |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:38:30Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-cd604799f0914d3d9f4ffd9038d7cccf2023-11-23T09:24:40ZengMDPI AGMaterials1996-19442021-12-011424790510.3390/ma14247905Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous DepositsSin-Jae Kang0Min-Sung Hong1Jung-Gu Kim2School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaDepartment of Nuclear Engineering, University of California at Berkeley, Berkeley, CA 94720, USASchool of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaStray current corrosion in buried pipelines can cause serious material damage in a short period of time. However, the available methods for mitigating stray current corrosion are still insufficient. In this study, as a countermeasure against stray current corrosion, calcareous depositions were applied to reduce the total amount of current flowing into pipelines and to prevent corrosion. This study examined the reduction of stray current corrosion via the formation of calcareous deposit layers, composed of Ca, Mg, and mixed Ca and Mg, at the current inflow area. To verify the deposited layers, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) were performed. The electrochemical tests revealed that all three types of calcareous deposits were able to effectively act as current barriers, and that they decreased the inflow current at the cathodic site. Among the deposits, the CaCO<sub>3</sub> layer mitigated the stray current most effectively, as it was not affected by Mg(OH)<sub>2</sub>, which interferes with the growth of CaCO<sub>3</sub>. The calcium-based layer was very thick and dense, and it effectively blocked the inflowing stray current, compared with the other layers.https://www.mdpi.com/1996-1944/14/24/7905stray current corrosionpipelinecalcareous depositcorrosion mitigationcathodic protection |
| spellingShingle | Sin-Jae Kang Min-Sung Hong Jung-Gu Kim Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits Materials stray current corrosion pipeline calcareous deposit corrosion mitigation cathodic protection |
| title | Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits |
| title_full | Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits |
| title_fullStr | Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits |
| title_full_unstemmed | Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits |
| title_short | Method for Mitigating Stray Current Corrosion in Buried Pipelines Using Calcareous Deposits |
| title_sort | method for mitigating stray current corrosion in buried pipelines using calcareous deposits |
| topic | stray current corrosion pipeline calcareous deposit corrosion mitigation cathodic protection |
| url | https://www.mdpi.com/1996-1944/14/24/7905 |
| work_keys_str_mv | AT sinjaekang methodformitigatingstraycurrentcorrosioninburiedpipelinesusingcalcareousdeposits AT minsunghong methodformitigatingstraycurrentcorrosioninburiedpipelinesusingcalcareousdeposits AT junggukim methodformitigatingstraycurrentcorrosioninburiedpipelinesusingcalcareousdeposits |