What is MPI?
MPI stands for Magnetic Particle Inspection — an NDT method that reveals suitable surface and slightly sub-surface indications in ferromagnetic steel by magnetising the component and applying fine iron particles.
Answer
MPI stands for Magnetic Particle Inspection — an NDT method that reveals suitable surface and slightly sub-surface indications in ferromagnetic steel by magnetising the component and applying fine iron particles.
It is widely used for weld and structural steel inspection, but field direction, surface condition and coverage matter; it is not suitable for non-ferromagnetic materials or general deep internal examination.
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