The influence of intensive plastic deformation on compacted Al powders was evaluated. The samples subjected to deformation processing were prepared from powder particles with diameters between 25 and 45 μm, pre-compacted using double-step cold isostatic pressing (CIP) at 200+300 MPa applied for 30 seconds each and subsequently vacuum sintered at 500°C for 60 min. Analyses of chemical composition of the sintered samples were carried out using scanning electron microscopy, while microhardness measurements were performed to evaluate the degree of compaction. The results showed increasing microhardness with increasing total imposed strain. Greater refinement of microstructure was achieved by increasing degrees of processing.Keywords: intensive plastic deformation, swaging, HPT, aluminum powder, hardening
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