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15 cards from this deck
Non-destructive testing for surface defects in ferromagnetic materials
Ferromagnetic materials only
Surface and near-surface defects
Iron, steel, nickel
Disrupt the magnetic field pattern
Electromagnetic yoke
Iron filings or magnetic dust
Clusters or lines of iron particles
Check for coolant or oil leaks
Detect stress fractures
Results visible immediately
Detects very small surface and near-surface cracks
Only ferromagnetic materials work
Cannot detect deep internal flaws
Clean surfaces, free from paint, rust, or oil
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