Abstract
Carbon steel A106 with an aluminized Ni coating was tested in a 5mol/l (M) monoethanolamine (MEA) with a carbon loading of 0.2mol/mol MEA at 80°C using polarization resistance, Tafel, and electrochemical impedance spectroscopy (EIS) techniques. Surface morphology and elemental line profile of the coating were examined before and after a 900°C heat-treatment in atmosphere environment. X-ray diffraction (XRD) results showed that the coating surface constitutes transformed from Ni2Al3 to Al-rich NiAl after heat-treatment. The electrochemical results show that the heat-treated coating displays outstanding corrosion performance with the conditions tested.
Original language | English |
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Pages (from-to) | 3666-3671 |
Number of pages | 6 |
Journal | Corrosion Science |
Volume | 53 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2011 |
Bibliographical note
Funding Information:The authors acknowledge the Carbon Management Research Group (CMRG) members, including Big Rivers Electric Corporation, Duke Energy, East Kentucky Power Cooperative (EKPC), Electric Power Research Institute (EPRI), Illinois Clean Coal Institute (ICCI), Kentucky Department of Energy Development and Independence (KY-DEDI), Kentucky Power (AEP), and LG&E and KU Energy, for their financial support.
Keywords
- A. Aluminium
- A. Metal coatings
- A. Nickel
- B. EIS
- B. Polarization
- C. Alkaline corrosion
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Materials Science