Accession Number : AD0647918
Title : ULTRASONIC SPECTROSCOPY.
Descriptive Note : Technical rept.,
Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS
Personal Author(s) : Gericke,Otto R.
Report Date : DEC 1966
Pagination or Media Count : 19
Abstract : Various experimental difficulties discussed in the report had to be overcome to be able to adopt spectroscopic procedures for ultrasonic testing and to construct an ultrasonic spectroscope. The ultrasonic pulse-echo spectroscope recently developed and its practical use for nondestructive inspection purposes are described. Test results obtained with the instrument indicate its usefulness for determining defect characteristics which cannot be revealed by conventional ultrasonic test methods. In addition, it is shown how the ultrasonic spectroscope can be used to distinguish microstructures of steel specimens. (Author)
Descriptors : (*NONDESTRUCTIVE TESTING, ULTRASONIC RADIATION), (*ULTRASONIC RADIATION, *SPECTROSCOPY), SPECTROMETERS, ACOUSTIC EQUIPMENT, DEFECTS(MATERIALS), STEEL, MICROSTRUCTURE, GRAIN STRUCTURES(METALLURGY)
Subject Categories : Properties of Metals and Alloys
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE