ANELASTIC PHENOMENA ASSOCIATED WITH THE LONG-RANGE DIFFUSION OF SELF-INTERSTITIALS AND THEIR INTERACTION WITH DISLOCATIONS IN ELECTRON IRRADIATED MAGNESIUM
Open Access
- 1 December 1985
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 46 (C10) , C10-219
- https://doi.org/10.1051/jphyscol:19851049
Abstract
The internal friction and elastic modulus of high purity magnesium were studied during irradiation at 2 K with 0.4 - 0.6 MeV electrons and subsequent anneal sequences. The sallent feature of the results is the evidence of a marked pinning stage in the temperature interval 9 to 13 K. This indicates that long-range diffusion of elementary interstitial defects occurs at these temperatures. Post-irradiation anneals enabled also the discovery of two relaxation peaks centered at 6 K and 15 K, respectively. These stem from the arrival of the diffusing self-interstitials at dislocations, and presumably from their interactions with geometrical kinksKeywords
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