Mechanical behavior and microstructures of aluminum in the MultiAxial Compression (MAC) with and without specimen re-machining.
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2019
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Severe Plastic Deformation (SPD) leads to grain refinement and strengthening of metals. The most utilized SPD techniques are Equal Channel Angular Pressing (ECAP), High Pressure Torsion (HPT) and
Multi-Axial Compression (MAC). Only MAC allows the determination of the stress–strain curves of the
material during processing. Although ECAP and HPT processing has been analyzed in detail, there are
few studies of MAC procedures and their consequences. It is shown that only specimens re-machined
after each compression lead to adequate MAC stress–strain curves of the material, whose microstructures
are not affected by re-machining.
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Stress–strain curves
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STEMLER, P. M. A. et al. Mechanical behavior and microstructures of aluminum in the MultiAxial Compression (MAC) with and without specimen re-machining. Materials Letters, v. 237, p. 84-87, fev. 2019. Disponível em: <https://www.sciencedirect.com/science/article/abs/pii/S0167577X18318317>. Acesso em: 10 mar. 2020.