Magnetic Particle Inspection (MPI)
- This method is very useful for detecting surface cracks in weldment and other areas.
- This method is easier to use than radiographic testing, but its use is limited with ferromagnetic materials.
- MPT detects larger surface flaws present below the surface, it also detects the defects like Cracks & Tears, Porosity, Shrinking cavities, Slag inclusions, voids, forging laps, grinding & corrosion cracks, fatigue cracks, larger size cracks in various orientations and pores.