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Ultrasound attenuation has no affects on the detection of discontinuities or defects in the castings.

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in Casting-Forming-Welding I by (687k points)
Ultrasound attenuation has no affects on the detection of discontinuities or defects in the castings.

(a) True

(b) False

I had been asked this question by my college director while I was bunking the class.

This intriguing question comes from Inspection Procedures in chapter Inspection Testing in Foundries of Casting-Forming-Welding I

1 Answer

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The correct choice is (b) False

To elaborate: In ultrasonic inspection, ultrasonic beam intensity decreases exponentially with the metal travel distance. Ultrasound attenuation in metal influences discontinuity detection greatly and also the material characterization technique. So, it is very important to establish attenuation measurement practices to carefully perform the inspection.

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