Page 25 - Introduction To Non-Destructive Testing
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Diploma in Mechanical Engineering (Materials)
DJB 50053 Non destructive testing
www.pis.edu.my
It is used to identify surface and near surface
Surface Examination Method
discontinuities in ferromagnetic materials. It
applies the principle that magnetic flux will be
1. Visual Inspection
distorted by the presence of a discontinuity.
Discontinuities are located from the flux
2. Radiography Inspection
distortion following the application of fine
3. Ultrasonic Inspection
magnetic particles to the area
under test.
4. Eddy Current Inspection
5. Magnetic Particle Inspection
6. Liquid Penetrant Inspection
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