Magnetic Particle Inspection

An extremely sensitive non destructive testing method for use on ferrous materials, magnetic particle inspection can detect minute cracks open to the surface, and some subsurface discontinuities. The productivity and sensitivity of this method make magnetic particle testing an industry inspection standard requirement.

How does this type of NDT inspection work?

Magnetic particle testing for NDT is one of the more economical and speedy ways to ensure ferrous materials are safe and ready for use in the field. In simplified terms, this type of non destructive inspection is performed by creating a magnetic field around the material being tested and then applying a carrier fluid which holds particles typically made up of iron oxide. Any defect in the surface or just under the surface of the subject material will distort the magnetic field surrounding it, causing the particles in the carrier fluid to be draw to it. This attraction is easily detected and identified. If there are no flaws in the material, the particles within the magnetic field will remain evenly distributed throughout

X-R-I Testing capabilities cover almost all of the potential applications of magnetic particle NDT inspection. Conventional methods of direct magnetization, or induced magnetization are utilized with portable or fixed inspection systems. Multidirectional systems typically are employed for large volume NDT projects.