DEMET - Departamento de Metalurgia

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Navegando DEMET - Departamento de Metalurgia por Autor "Almeida, Natanael Geraldo e Silva"

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    Mechanical behavior and microstructures of aluminum in the MultiAxial Compression (MAC) with and without specimen re-machining.
    (2019) Stemler, Pedro Malaquias Araujo; Flausino, Paula Cibely Alves; Pereira, Pedro Henrique Rodrigues; Faria, Cleber Granato de; Almeida, Natanael Geraldo e Silva; Aguilar, Maria Teresa Paulino de; Cetlin, Paulo Roberto
    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.