The Development and Use of an Internal Friction Technique for the Study of Radiation Damage

Abstract

<p>The use of internal friction methods in the study of radiation damage is briefly reviewed. The development of an internal friction technique utilizing a noncontacting optical transducer for detection of flexural resonant vibrations in a cantilever beam is described. An account of some preliminary experiments is given, including examination of the Snoek peak and the strain amplitude dependence of internal friction in iron and niobium. Damping measurements were made in the free-decay mode.</p>