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ULTRASONIC INSPECTION OF TUNGSTEN ROUND ROBIN BILLETS, PHASE I
NAVAL RESEARCH LAB WASHINGTON D C
Ultrasonic inspection of the Tungsten Round Robin billets Phase I was completed. Tests conducted were primarily to determine 1 best transducer frequency, 2 method of waterproof wrapping of uninfiltrated billets for immersed inspection, 3 velocity of sound measurements to detect density variations, and 4 detection of internal defects by both longitudinal and shear waves. Author