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dye penetrant

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dye penetrant

[¦dī ′pen·ə·trənt]
(metallurgy)
A dye-containing liquid used for detecting cracks or other surface defects in nonmagnetic materials.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Some of the more common methods include dye penetrant, magnetic particle, ultrasonic and radiographic.
Building nondestructive know-how: customer requirements for nondestructive testing increasing? Maybe it's time to bring it in-house
These include looking for the first bubble as the sample solidifies, measuring the specific gravity of the solidified sample, visual examination, use of dye penetrants, etc.
RPT gauges aluminum porosity: the rising demand for top quality aluminum metal castings puts emphasis on reducing test variables to improve accuracy
Atkinson also talked of using dye penetrant on a sectioned sample in order to show gas porosity much better than simply observing the piece.
Close attention paid to gas testing, MMCs
The failed riser will usually appear solid at the interface of the casting surface and the riser neck, although shrinkage indications can often be found at this location by magnetic particle or dye penetrant testing.
Blind risers: why they don't always work; part 1 of 3
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