Influence of Interstitial Elements on Internal Friction Measurements in Nb and Nb-Zr Alloys O. Florêncio, W. Aparecido de Freitas,, W.J. Botta F., C.R. Grandini et J.A.R. Jordão J. Phys. IV France, 06 C8 (1996) C8-123-C8-125 DOI: 10.1051/jp4:1996824