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Flow-accelerated corrosion behavior of 13Cr stainless steel in a wet gas environment containing CO2
- Source :
- International Journal of Minerals, Metallurgy, and Materials. 25:779-787
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- This work investigated the flow-accelerated corrosion (FAC) behavior of 13Cr in a wet CO2-containing environment at different flowing gas velocities and impinging angles, with the natural-gas pipeline environment simulated by a self-assembled impingement jet system. Surface morphology determination, electrochemical measurements, and hydromechanics numerical analysis were carried out to study the FAC behavior. The results demonstrate that pitting corrosion was the primary mode of corrosion in 13Cr stainless steel. High-flow-rate gas destroyed the passive film and decreased the pitting potential, resulting in more serious corrosion. The corrosion degree with various impact angles showed the following order: 90° > 60° > 45°. The shear force and the electrolyte from the flowing gas were concluded to be the determinant factors of FAC, whereas the shear force was the main factor responsible for destroying the passive film.
- Subjects :
- Jet (fluid)
Materials science
020209 energy
Mechanical Engineering
Shear force
Metals and Alloys
02 engineering and technology
Electrolyte
Electrochemistry
Corrosion
020303 mechanical engineering & transports
0203 mechanical engineering
Geochemistry and Petrology
Mechanics of Materials
Flow-accelerated corrosion
0202 electrical engineering, electronic engineering, information engineering
Materials Chemistry
Pitting corrosion
Wet gas
Composite material
Subjects
Details
- ISSN :
- 1869103X and 16744799
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- International Journal of Minerals, Metallurgy, and Materials
- Accession number :
- edsair.doi...........86f214d6e9c0346f43578afc8251991c