Numéro
J. Phys. IV France
Volume 05, Numéro C7, Novembre 1995
Second International Conference on Ultra High Purity Base Metals
UHPM - 95
Page(s) C7-199 - C7-204
DOI https://doi.org/10.1051/jp4:1995721
Second International Conference on Ultra High Purity Base Metals
UHPM - 95

J. Phys. IV France 05 (1995) C7-199-C7-204

DOI: 10.1051/jp4:1995721

Characterization of High Purity bcc Metals by Mechanical Spectroscopy

M. Weller

Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaft, Seestrasse 92, 70174 Stuttgart, Germany


Abstract
The mechanical loss (internal friction) spectra of bcc metals (Fe,Nb,Ta) indicate the presence of interstitial foreign atoms by Snoek peaks at distinct, characteristic temperatures. The magnitude of the peaks is proportional to the contents of interstitial solute atoms. Experiments with single crystals allow determination of the dipole tensor components |λ12|. Equipment for low frequency measurements (10-4 Hz - 20 Hz) is demonstrated.



© EDP Sciences 1995