Magnetic Particle Testing or MPT Is A Nondestructive Testing Method For Locating
Magnetic Particle Testing or MPT Is A Nondestructive Testing Method For Locating
Magnetic Particle Testing or MPT Is A Nondestructive Testing Method For Locating
Ferromagnetic materials include most of the iron, nickel and cobalt alloys. These
materials lose their ferromagnetic properties above a characteristic temperature
called the Curie point which is approximately 760◦ C for most of the ferromagnetic
material.
Applications
The principal industrial uses of magnetic article testing are final inspection,
receiving inspection, in process inspection and quality control, maintenance and
overhaul in the transportation industries, plant and machinery maintenance and
inspection of large components.
Limitations
Thin coatings of paint and other non-magnetic coverings, such as plating;
adversely affect sensitivity of magnetic particle inspection. Other limitations are: