Internal Friction in The Region of The Grain Boundary Peaks in Pure Zirconium and Dilute Zirconium Alloys

Abstract

<p>Internal friction, in the region of the grain boundary peaks, has been examined in nominally pure zirconium and dilute zirconium alloys. Experimental observations were made using both torsion and reed internal friction pendulums. The effect of various heat treatments on the peaks were investigated. Strain amplitude dependent damping in the region of the Low Temperature Peak was observed. A qualitative model is presented to explain the experimental observations.</p>