Magnetic particle testing
Reveal surface and near-surface indications in ferromagnetic components.
MAGNETIC FIELD / SCHEMATIC
METHOD / MT
What the examination tells you.
The component is magnetised and magnetic particles are applied. Particle patterns can make relevant surface and near-surface discontinuities visible to the examiner.
Include in your briefTypical applications
- Accessible weld surfaces
- Steel connections and attachment details
- Local examination of ferromagnetic components
Things to consider
- Applicable to ferromagnetic materials; it is not a universal metal test.
- Surface condition and magnetisation direction affect results.
- Indications need interpretation against an agreed examination basis.
A useful report includes
- Component, location and examined area
- Technique and indication record
- Images, restrictions and next review items
General method overview. Not a procedure or a guarantee of suitability.
Further reading: Applus+ — Magnetic Particle Testing