Journal article
Effect of hydrodynamics and surface roughness on the electrochemical behaviour of carbon steel in CSG produced water
Applied Surface Science, Vol.357(Part A), pp.506-515
2015
Abstract
The influence of fluid flow, surface roughness and immersion time on the electrochemical behaviour of carbon steel in coal seam gas produced water under static and hydrodynamic conditions has been studied. The disc electrode surface morphology before and after the corrosion test was characterized using scanning electron microscopy (SEM). The corrosion product was examined using X-ray photoelectron spectroscopy (XPS) and X-ray diffractometry (XRD).The results show that the anodic current density increased with increasing surface roughness and consequently a decrease in corrosion surface resistance. Under dynamic flow conditions, the corrosion rate increased with increasing rotating speed due to the high mass transfer coefficient and formation of non-protective akaganeite beta-FeO(OH) and goethite alpha-FeO(OH) corrosion scale at the electrode surface. The corrosion rate was lowest at 0 rpm. The corrosion rate decreased in both static and dynamic conditions with increasing immersion time. The decrease in corrosion rate is attributed to the deposition of corrosion products on the electrode surface. SEM results revealed that the rougher surface exhibited a great tendency toward pitting corrosion.
Details
- Title
- Effect of hydrodynamics and surface roughness on the electrochemical behaviour of carbon steel in CSG produced water
- Authors
- Gaius Debi Eyu (Author) - Queensland University of TechnologyGeoffrey Will (Corresponding Author) - Queensland University of TechnologyWillem Dekkers (Author) - Queensland University of TechnologyJennifer MacLeod (Author) - Queensland University of Technology
- Publication details
- Applied Surface Science, Vol.357(Part A), pp.506-515
- Publisher
- Elsevier BV
- DOI
- 10.1016/j.apsusc.2015.08.206
- ISSN
- 1873-5584
- Grant note
- Queensland University of Technology Australian Government
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99737875002621
- Output Type
- Journal article
Metrics
20 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Web Of Science research areas
- Chemistry, Physical
- Materials Science, Coatings & Films
- Physics, Applied
- Physics, Condensed Matter
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites