MAGNETIC PARTICLE TESTING(MT)
Magnetic Particle Testing (MPT) is a non-destructive testing (NDT) method
used to detect surface and slightly subsurface defects in ferromagnetic
materials.
The process involves magnetizing the material using AC/DC
electromagnetic yokes, permanent magnet yokes, or coils. Once
magnetized, ferrous particles are applied to the surface. These particles
are attracted to areas of flux leakage, typically occurring at discontinuities
like cracks or voids, forming visible indications of the defects.
