NDT Method
How Magnetic Particle Inspection Works
A step-by-step explanation of how MPI reveals cracks in ferromagnetic steel components.
Overview
Magnetic particle inspection works by inducing a magnetic field in a ferromagnetic component. Where the material is sound, the field flows uninterrupted; where a crack exists, the field leaks out at the surface.
Fine iron particles applied to the surface are attracted to this leakage field, clustering at the crack and making it clearly visible.
The Process
- Magnetise the component
- Apply iron particles (wet or dry)
- Particles gather at flux leakage
- Interpret indications and document
Frequently Asked Questions
A step-by-step explanation of how MPI reveals cracks in ferromagnetic steel components. Contact our team on 0416 689 689 to discuss the equipment, location and inspection scope.
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