Abstract

Internal friction and modulus measurements have been performed on high-purity cold-worked magnesium which was bombarded by electrons at low temperature during successive anneals up to 250K. The variation of Bordoni-type peaks is discussed in terms of pinning and diffusion of defects along dislocations lying along the Peierls' valleys. Some very low-temperature peaks are associated with an interaction between radiation-induced defects and geometrical kinks.

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