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Magnetic Particle Inspection (MPI) (MT)
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MT Indication Question
MT Indication Question
I am seeking info regarding the indications shown in the image.
This is a training test piece for MT; however, I have also observed similar indications when testing aircraft bolts and other components (strut fittings, etc). They are straight, linear with no visible indication under a microscope.
I am looking to see what is causing these indications.
Any advice will be greatly appreciated. Thanks!
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