The term “Localized Corrosion” is described as a category of corrosion phenomena (e.g., pitting, crevice corrosion, corrosion or stress corrosion cracking) and corrosion that has been confined to a small area of the corroding surface at a specific location in the process equipment.
It is commonly understood that fluid velocity induces accelerated attack by a mechanism involving the erosive effect of the high velocity liquid and this phenomenon is described as erosion. Corrosion caused by the erosion effects is called as erosion-corrosion.