This method is used for the detection of surface and near-surface flaws in ferromagnetic materials and is primarily used for crack detection. The specimen is magnetized either locally or overall, and if the material is sound the magnetic flux is predominantly inside the material. If, however, there is a surface-breaking flaw, the magnetic field is distorted, causing local magnetic flux leakage around the flaw.

Course Timeline:
INTRODUCTION TO MPT ( MAGNETIC PARTICLE TEST)
History Of Magnetic Particle Testing
Magnets and its Properties
Laws Of Electromagnetism
Currents
Types Of Magnetic Materials
B H Curve (Hysterisis Loop)
Working Principle Of Magnetic Particle Testing
Equipments And Calibration
Magnetic Particles
Basic Procedure Of Magnetic Particle Testing
Surface Preparation
Magnetization
Interpretation
Types Of Defects Processing
Types Of Welding Defects
Types Of Defects In Service
Reporting
Demagnetization Of Magnetic Particle Testing
Post Cleaning
Techniques In Magnetic Particle Testing

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