MAGNETIC PARTICLE INSPECTION
Definition
A <MAGNETIC PARTICLE INSPECTION> is <INSPECTING> using a nondestructive method of detecting cracks, seams, inclusions, segregations, porosity, or lack of fusion in magnetic materials. In a magnetic particle test, the ferromagnetic material is magnetized by an electric current, and iron particles or powder is applied to the magnetized area. If the magnetic field is interrupted by a defect, the iron particles form a pattern on the surface