Magnetic Particle Testing Services

MT detects surface and near-surface imperfections such as cracks, seams and laps in ferromagnetic materials, and is used to assess location, size, shape and extent of these imperfec- tions. When the test object is magnetized, flaws perpendicular to the magnetic field direction cause f lux leakage. Magnetic particles applied to the surface are held at the location of the imperfection by flux leakage.