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<p>This study investigated the evolution of the hardness and structural characteristics of an Al-6.5%Ag-2%Cu alloy. The alloy was subjected to deformation by route Bc equal-channel angular pressing followed by artificial aging at 150 and 200&#xa0;°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.</p>

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Improvement in Hardness of Al-Ag-Cu Alloy via Equal-Channel Angular Pressing and Subsequent Aging Processes

  • 期刊论文

  • 发表日期：

    2025年2月5日

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  • V. E. Salazar-Muñoz,
  • J. García-Rocha,
  • Ivonne Kado-Mercado Elías,
  • E. J. Gutierrez-Castañeda,
  • M. A. Urbano-Peña

摘要

This study investigated the evolution of the hardness and structural characteristics of an Al-6.5%Ag-2%Cu 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.