- Electrochemical analysis (PDS - potentiodynamic scans)
- Microscopic analysis (SEM - scanning electron microscopy)
Topic: Expanding the Capabilities of a Semi-Solid Agar Based Test System for Studies into the Microbiologically Influenced Corrosion of Steel Pipes in a Soil Environment
Risks of leakage and contamination are incurred by the corrosion of buried steel water pipelines, which cause health and safety hazards to the communities that potable water is delivered to. As much of the corrosion originates from the outer surface of the pipe, monitoring soil-to-steel interactions is crucial to understanding the physical and chemical mechanisms that cause corrosion. It was found that semi-solid agar could be a good analogue for simulating clay-based soil conditions for corrosion testing; however, a more systematic study needs to be carried out to investigate the metal-bacteria-environment interactions present in microbiologically influenced corrosion (MIC) situations. Detailed studies are currently being performed to analyse such interactions in the novel semi-solid agar system. The system as an analogue of soil, if validated, would allow significant advancements to laboratory-based research of corrosion in a soil environment, thus allowing the scientific community to better combat MIC for pipelines buried underground.