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Ultrafine-grained aluminum materials were processed by hot isostatic pressing of aluminum nanopowders (99.7wt.% purity). Quasi-static compression tests were carried out at a strain rate of 2×10 −4 s −1 at 200°C. Scanning electron microscopy investigations of fracture surfaces or cavities that were formed during straining reveal the presence of filaments. The number and dimensions of...
The effect of concurrent precipitation on recrystallization behavior during the isothermal annealing of a supersaturated and deformed Al-Mn alloy was investigated. It is found that concurrent precipitation strongly affects the recrystallization behavior of this alloy. At low temperatures, concurrent precipitation retards recrystallization and results in large flat grains. The size of recrystallized...
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