| Numéro |
J. Phys. Colloques
Volume 44, Numéro C9, Décembre 1983
ECIFUAS-4Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides |
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|---|---|---|
| Page(s) | C9-639 - C9-644 | |
| DOI | https://doi.org/10.1051/jphyscol:1983996 | |
ECIFUAS-4
Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides
J. Phys. Colloques 44 (1983) C9-639-C9-644
DOI: 10.1051/jphyscol:1983996
1 Max-Planck-Institut für Metallforschung, Institut für Physik, Stuttgart, F.R.G.
2 Middle East Technical University, Ankara, Turkey
Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides
J. Phys. Colloques 44 (1983) C9-639-C9-644
DOI: 10.1051/jphyscol:1983996
INTERNAL FRICTION AND VISCOSITY ASSOCIATED WITH MOBILE INTERSTITIALS IN THE PRESENCE OF A KINK HARMONICALLY OR UNIFORMLY MOVING IN ANISOTROPIC BODY-CENTERED CUBIC METALS
T.Ö. Ogurtani1, 2 et A. Seeger1, 21 Max-Planck-Institut für Metallforschung, Institut für Physik, Stuttgart, F.R.G.
2 Middle East Technical University, Ankara, Turkey
Abstract
The power dissipation due to mobile octahedral interstitials in the stress field of a harmonically oscillating or uniformly moving kink of a dislocation line is derived for anisotropic BCC metals using the discrete Fourier transformation of the elastic Green's function. The viscosity and the drag force acting on the kink moving uniformly along the dislocation line are formulated which shows strong velocity and the temperature dependent behaviour.