abstract

• This study investigated the evolution of the hardness and structural characteristics of an Al-6.5%25Ag-2%25Cu alloy. The alloy was subjected to deformation by route Bc equal-channel angular pressing followed by artificial aging at 150 and 200 °C. Analysis of the aging curves with and without prior deformation indicates a significant increase in hardness attributed to severe plastic deformation rather than to the formation of precipitates during aging. Transmission electron microscopy analysis revealed the presence of nanometer precipitates, characterized by their morphology as γ/γ’ and θ/θ’ phases. Further investigation of the alloy’s mechanical properties and microstructural changes could provide deeper insight into its behavior under various conditions, potentially improving its applicability in engineering applications.

authors

• García Rocha Jorge
• Gutiérrez Castañeda Emmanuel José
• Salazar-Muñoz V.E.
• Urbano-Peña M.A.

publication date

• 2025-01-01

published in

• Journal of Materials Engineering and Performance  Journal

keywords

• aluminum alloys; ECAP; equal-channel angular pressing; precipitation hardening; severe plastic deformation Aluminum copper alloys; Equal channel angular pressing; Hardness; High resolution transmission electron microscopy; Rockwell hardness; Silver alloys; Tin alloys; Ag-Cu alloys; Ageing process; Artificial ageing; Channel angular pressing; Cu alloy; ECAP; Equal channel angular; Severe plastic deformations; Structural characteristics; Transmission electron; Brinell Hardness

Digital Object Identifier (DOI)

• 10.1007/s11665-025-10680-1

PubMed ID

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