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Eddy-current testing can be a useful tool when it is planned for a specific purpose, and the manufacturer, fabricator and owner-operator communicate effectively.
ID eddy-current (EC) inspection is a form of nondestructive testing (NDT) employed to help detect pitting, cracking and other concerns such as erosion and corrosion.
Factors that can impact the corrosion performance of the weld seam in heat exchanger tubing include welding technique, heat treatment, post-anneal microstructures in the weld, heat-affected zones and the presence of intermetallics.
This article addresses available methods of seam corrosion testing and summarizes variables that can impact the corrosion performance of the weld seam. Manufacturing process variables include welding technique, heat treatment, post-anneal microstructures of the weld, heat-affected zones and presence of intermetallics.
Heat exchangers are key components for many industries, particularly in chemical and oil and gas plants where they play a vital role in process control.
