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13 cards from this deck
Non-destructive test for surface and near-surface defects in ferromagnetic materials
Ferromagnetic materials only
Iron, steel, and nickel
Defects disrupt the magnetic field pattern
Fine iron filings or magnetic dust
As clusters or lines of iron particles
Electromagnetic yoke
Only works on ferromagnetic materials
Clean surfaces free from paint, rust, or oil
Cannot detect deep internal flaws
Results visible immediately
Can find very small surface and near-surface cracks
Checking for cracks that cause coolant or oil leaks
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