MPI (Magnetic Particle Inspection)

Magnetic Particle Inspection (MPI) is a non-destructive testing method used to detect surface and near-surface flaws in ferromagnetic materials like iron, nickel, or steel. The process involves magnetizing the object, then applying fine magnetic particles or dye to the surface. If there's a crack or defect, the magnetic particles gather at that location, forming a visible indication. MPI is quick, sensitive, and effective for identifying tiny cracks or imperfections that could compromise the material's integrity, helping to ensure safety and reliability without damaging the component.