Magnetic Particle Inspection (MPI) is a non-destructive
testing method that can detect surface and subsurface flaws in
Magnetic particle inspection is often carried out to help
determine an item's fitness for use or conformity. This quick
and relatively easy to apply technique is widely used in all
industry sectors including aerospace, automotive,
petrochemical, structural steel, and power generation to
inspect a variety of products and equipment such as engine,
suspension and braking system components, castings,
forgings and weldments.
The method can detect surface or near-surface flaws such as
cracks, laps, seams and inclusions in ferromagnetic materials
such as iron and steel. One of the main advantages of magnetic
particle inspection is that it can give an immediate indication
of defects and discontinuities.