Inspection
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A nondestructive testing method used to detect surface and near-surface discontinuities in ferromagnetic materials.
Magnetic Particle Testing (MT) is a nondestructive testing (NDT) method used to detect surface and near-surface discontinuities in ferromagnetic materials by applying a magnetic field and observing the accumulation of finely divided magnetic particles at locations where magnetic flux leakage occurs. It is widely used to identify cracks, seams, laps and other material discontinuities.
Magnetic Particle Testing provides rapid detection of surface and near-surface flaws in ferromagnetic materials without damaging the component.
Magnetic Particle Testing is applicable only to ferromagnetic materials and may be performed using dry or wet particles under visible or fluorescent inspection techniques.
Magnetic Particle Testing detects discontinuities in ferromagnetic materials, whereas Liquid Penetrant Testing can be applied to both ferromagnetic and non-ferromagnetic materials but detects only surface-breaking defects.
Non-Destructive Testing; Inspection; Materials Engineering.
Weld inspection.; Pressure equipment.; Manufacturing.; Oil and gas.; Petrochemical.
ASME BPVC Section V Article 7; ISO 9934
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