Overview
| Project No. | 634 |
|---|---|
| Contract No. | DTPH5615HCAP06L |
| Research Award Recipient | North Dakota State University NDSU Dept. 4000 P.O. Box 6050 Fargo, ND 58108-6050 Fargo, ND 58108-6050 |
| AOR | James Merritt Harold Winnie Joshua Arnold |
| Researcher Contact Info | PI: Dr. Fardad Azarmi, Associate Professor North Dakota State University Fargo Department of Mechanical Engineering, Dolve 108 College of Engineering, Dept. 2490, P. O. Box 6050, Fargo, ND, 58108-6050 Phone: 701.231.9784, Fax: 701.231.8913 Email: fardad.azarmi@ndsu.edu Co-PI: Dr. Ying Huang, Assistant Professor North Dakota State University Fargo Department of Civil and Environmental Engineering, CIE Room 201Q College of Engineering, Dept. 2470, P. O. Box 6050, Fargo, ND, 58108-6050 Phone: 701.231.7651, Fax: 701.231.6185 Email: ying.huang@ndsu.edu |
| Project Status | Closed |
|---|---|
| Start Fiscal Year | 2015 (09/30/2015) |
| End Fiscal Year | 2019 (12/31/2018) |
| PHMSA $$ Budgeted | $307,625.00 |
Main Objective
The main objective of this project is to achieve an ultimate and affordable corrosion mitigation solution for onshore pipelines through the advances of smart thermally sprayed coatings.
Public Abstract
Corrosion is recognized as one major reason for the failures of on-shore underground steel pipes, which results in increase in maintenance cost and system downtime. To mitigate corrosion, a common method is to combine cathodic protection and coating techniques such as polymeric and metallic coatings. Polymeric coatings dominate the coating techniques due to their good performance on separating metal from the surrounding corrosive environments. However, corrosion may still develop beneath the polymeric coatings in random locations. In these circumstances, a strong metallic coating from high corrosive resistant materials deposited by thermal spraying techniques can be considered as a potential cost-effective alternative. These coatings can separate pipes from surrounding environments and meanwhile exhibit cathodic protection properties.
For off-shore pipelines, some thermal sprayed coatings have been experimentally investigated for corrosion mitigation using aluminum and zinc, which have shown excellent performance. However, thermal sprayed metallic coatings for on-shore pipelines, which was initialized by this research team, are still under development. An initial study was carried out in the current project with PHMSA (Contract #DTPH56-13-H-CAAP05) to study the feasibility of utilizing thermal spraying as a coating method for pipeline corrosion prevention. The experimental results demonstrated very positive corrosion resistance improvements using a thermal sprayed Al-Bronze coating. Although, the cost of coating material is relatively higher in this method, the long-term application can justify this technique with cost reduction associated with maintenance. Based on the gained valuable experiences from the current project, constant needs to further promote more fundamental studies in developing an effective and low cost thermal spraying coating system are noted for practical applications of on-shore pipeline corrosion mitigation.
Relevant Files & Links
Final Report
Final Report NDSU-12-20-2018.pdf