Magnetic flux leakage inspection
Magnetic Flux Leakage (MFL) is one of the non-destructive testing methods used to detect corrosion and voids in steel structures, such as pipelines, tank bottoms, pressurized vessels, and storage tanks, where it is applied on insulated and painted surfaces. The fundamental principle of this method relies on a strong magnetization of the steel. In areas where corrosion or missing metal occurs, the magnetic field “leaks” from the steel. In the MFL method, magnetic sensors are used between the poles of