| Numéro |
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-319 - C5-324 | |
| DOI | https://doi.org/10.1051/jphyscol:1981547 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-319-C5-324
DOI: 10.1051/jphyscol:1981547
1 Materials Science Branch, Atomic Energy of Canada Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba ROE 1LO, Canada
2 BBC Brown, Boveri and Company, Limited, CH-5405 Baden-Dattwil, Switzerland
3 Materials Science Branch, Atomic Energy of Canada Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba ROE 1LO, Canada.
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-319-C5-324
DOI: 10.1051/jphyscol:1981547
DISLOCATION RELAXATION IN A RANDOM ARRAY OF SOLUTES
I.G. Ritchie1, A. Atrens2, C.B. So3 et K.W. Sprungmann11 Materials Science Branch, Atomic Energy of Canada Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba ROE 1LO, Canada
2 BBC Brown, Boveri and Company, Limited, CH-5405 Baden-Dattwil, Switzerland
3 Materials Science Branch, Atomic Energy of Canada Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba ROE 1LO, Canada.
Abstract
An amplitude-dependent internal friction peak occurs at ≈ 475 K in well-annealed, pure α-Zr after slight deformation. Qualitatively, the results agree with a model for the motion of zig-zag dislocations in an array of obstacles. Comparison of theoretical and experimental results yields estimates of the effective activation enthalpy and activation volume of the process involved.