MAGNETIC PARTICLE TESTING (MT)

Description

Magnetic Particle Testing uses magnetic fields to locate surface and near surface discontinuities in ferromagnetic materials such as steel.

The Magnetic field can be applied using various direct and indirect techniques such as Yokes, Prods, and Coils or through the use of a central conductor. Magnetic Particle equipment can be portable, semi-portable, or stationary and can be customized for use in a variety of inspection needs.

Magnetic Particle inspection uses a fine pigmented ferromagnetic powder which, when applied to the surface of the part, will be drawn into the magnetic leakage field caused by a discontinuity, causing a visible indication.

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Advantages

1. Relative low cost
2. Portability
3. Ease of inspection
4. Inspects irregular shapes with ease

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Limitation

1. Only surface and very near surface indications may be seen
2. Material/Part being tested must be ferromagnetic