Effects of Discontinuities on Materials
SURFACE DISCONTINUITIES The magnetic field surrounding subsurface discontinuities drops off very rapidly with distance below the surface. Magnetic particle movement is critical to the…
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Browse 30 free articles, standards and practical guides about Magnetic Particle Testing.
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CHARACTERISTICS OF MAGNETIC FIELDS
The magnetic field surrounding a permanent bar magnet has polarity. As an example, the Earth itself can be considered a bar magnet because of…
Read articleLAW OF MAGNETISM
When an external magnetic field is applied to ferromagnetic materials, the magnetic domains align parallel to the applied fields. These domains are very small,…
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MAGNETS AND MAGNETIC FIELDS
The theory of magnetic fields indicates that an object is magnetized when part or all of its atomic elements have their north and south…
Read articleCAPABILITIES OF MAGNETIC PARTICLE TESTING PERSONNEL QUALIFICATION
CAPABILITIES OF MAGNETIC PARTICLE TESTING Magnetic particle testing can reveal surface discontinuities, including those too small or too tight to be seen with the…
Read articleWhat is Magnetic Particle Testing
Magnetic particle testing can detect both production discontinuities, such as seams, laps, grinding cracks and quenching cracks, and inservice damage, such as fatigue and…
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