Accession Number : AD0784942

Title :   Nondestructive Testing of Beryllium,

Corporate Author : BATTELLE COLUMBUS LABS OHIO METALS AND CERAMICS INFORMATION CENTER

Personal Author(s) : Runck,Roger J.

Report Date : JUL 1974

Pagination or Media Count : 82

Abstract : Radiography with X-rays is the 'workhorse' as a method of nondestructively testing beryllium. It is especially capable of revealing inclusions and it can detect voids in moderately thick sections. Ultrasonic and eddy-current tests can be used to supplement liquid-penetrant tests for identification of discontinuities near the surface. Acoustic emission is a relatively new nondestructive testing technique that has proven to be useful for evaluating beryllium under load, and more extensive use of this technique is likely in the future. Holographic interferometry has been used to detect strain, and thereby identify debonds, in beryllium structures. However, the method is not especially effective with materials having high modulus of elasticity, such as beryllium, because of the high stresses necessary to produce appreciable strain. (Modified author abstract)

Descriptors :   *Beryllium, *Nondestructive testing, Radiography, X ray diffraction, Ultrasonic tests, Eddy currents, Acoustic emissions, Holography, Interferometry, Defects(Materials), Surface properties, Strain(Mechanics)

Subject Categories : Metallurgy and Metallography
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE