Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. IV France 06 (1996) C8-31-C8-34
Internal Friction Peaks Associated with Hydrides in Zr and Zr-2.5NbZ.L. Pan and M.P. Puls
Materials and Mechanics Branch, Whiteshell Laboratories, AECL, Pinawa, Manitoba, Canada ROE 1L0
Internal friction peaks P1, P2 and P3 were determined by the composite oscillator technique (APUCOT) at 40 and 120 kHz in unalloyed Zr + H and in Zr-2.5Nb + H. The effect on the peaks of hydrogen content, thermal cycling and ageing was investigated. Pl can be increased by misfit dislocations due to hydrides. The height of P2 is proportional to the total content of hydrogen while P3 depends on the hydride morphology.
© EDP Sciences 1996