Magnetic Particle Testing (MPI) in India: Principles, Practices & Applications
Contents What is Magnetic Particle Testing How MPI Works – Key Principles Equipment & Types of MPI Methods Indian Standards & Certification Applications in Indian Industries Advantages & Limitations Best Practices for India-based Users Conclusion 1. What is Magnetic Particle Testing Magnetic Particle Testing (also called Magnetic Particle Inspection, MPI or MPT) is a Non-Destructive Testing (NDT) technique used to detect surface and near-surface discontinuities (defects) in ferromagnetic materials (iron, steel, some alloys). The test reveals cracks, laps, seams, voids, inclusions etc., by magnetising the part and then using fine magnetic particles that accumulate at leakage points in the magnetic field, making defects visually detectable. 2. How MPI Works – Key Principles Here’s the general process and the science behind MPI: A ferromagnetic component is magnetised. When there is a crack or defect open or close to the surface...
