Abstract:The recovery? recrystallization and grain growth of cold rolled samples of Cu, x-brass, and Ni are followed with positron Doppler broadening and, in the case of Ni, positron lifetime measurements. The positron measurements sbow similar behavior during the annealing of cold worked metals as do hardness measurements, however, the positron measurements are quite sensitive to changes in the recovery region in which hardness is completely insensitive. Positron measurements are also much more sensitive than hardness… Show more
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