Definitions for "Magnetic Particle Inspection"
The use of magnetic particles as a dry powder or in a liquid suspension to indicate discontinuities in a surface when it has been magnetized so that the particles adhere to the surface at the discontinuity.
A nondestructive method of inspection for determining the existence and extent of possible defects in ferro-magnetic materials. Finely divided magnetic particles, applied to the magnetized part, are attracted to and outline the pattern of any magnetic leakage fields created by discontinuities.
A nondestructive method of detecting the presence of surface cracks and imperfections through use of fine iron particles in an electrical field. Abbreviated as MPI or MT.