Corrosion assessment of ductile iron pipes using high-speed camera technique : Microstructural validation

Corrosion in steel pipelines is a common problem that happens due to environmental conditions over time which, if left unchecked, can lead to catastrophic failures of the system. This study involves a multi-scale assessment of corroded pipe sections with diverse characterization modalities at multiple length scales using techniques such as motion magnification with high-speed video, X-ray diffraction, and nanoindentation to bridge the gap between shifts in vibration behavior, and changes in the steel chemical structure, nano-structure, and material properties. Here, vibration monitoring technique coupled with chemical characterization is used to detect and assess the extent of corrosion damage in pipelines.