Technique for detecting cavitation pitting in pumps, turbines, and other machinery uses low-level nuclear irradiation. Isotopes concentrated below surface emit gamma radiation, a portion of which is attenuated by overlying material. Where there are cavitation pits, output of gamma-ray detector fluctuates as detector is scanned near pits. Important to detect cavitation pits because nozzle, turbine blade, or other pump component weakened by cavitation could fail catastrophically and cause machine to explode.
Detecting Cavitation Pitting Without Disassembly
NASA Tech Briefs ; 10 , 1
1986-06-01
Miscellaneous
No indication
English
REDUCTION OF CAVITATION PITTING OF DIESEL-ENGINE CYLINDER LINERS
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