Magnetic Particle Inspection
Magnetic Particle Inspection
Magnetic Particle Inspection
P AR T
E TI C T I ON
AGN P E C
M IN S
DEFINATION
It is an NDT used to detect
the discontinuities in ferromagnetic
materials such as iron, nickel, cobalt
and some of their alloys.
COMPONENTS
1. Current carrying wires
2. Workpiece
3. Magnetic flux in leg of yoke
PROCEDURE
1.Run a magnetic current
through a material. If defects are
present it will create a flux leakage
field.
2. Spread metal particles over the
material in the form of powder. The
powder particles will attached at the
flux leakage place.
APPLICATIONS
1. Automotive Industries
2. Petrochemical Industries
3. Power Generation
4. Aerospace Industries
5. Underwater Inspection
ADVANTAGES
1. Quick and uncomplicated process
2. It show surface near defect.
3. Excellent for detecting flaws
DISADVANTAGES
1. Restricted to ferromagnetic materials
2. It is messy process
3. Most method need supply of
electricity at that age which is costly process.