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Transitioning vehicle manufacturing to predominantly recycled materials offers significant energy savingsEnergy saving and reduces CO2 emissionsEmissions. However, impuritiesImpurities, particularly in recycled light alloys like aluminumAluminum, pose challenges and hinder increased recyclingRecycling in conventional manufacturing. Solid Phase ProcessingSolid phase processing (SPP) presents a more efficient and environmentally friendly method for recyclingRecycling secondary aluminum alloysAluminum alloy. By breaking down impuritiesImpurities into smaller sizes and redistributing them uniformly, SPP prevents these impuritiesImpurities from initiating cracks under external loads, thereby enhancing the overall performance of recycled materials. However, determining the threshold level of impuritiesImpurities—which varies by type, concentration, and size—can be time-consuming. This study aims to expedite this process by developing a rapid screening methodology. This approach involves generating bulk-scale samples with gradient impurityImpurities concentrations, enabling quicker assessments of optimal levels. The results demonstrate that Fe impurityImpurities powders are reduced to smaller sizes during the SPP process compared to their initial state and are uniformly distributed along the extruded rod. The final product contains Al-Fe-Si particles due to the presence of Fe impuritiesImpurities.

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Achieving High Impurity Tolerance in Recycled Aluminum Alloy Through Solid Phase Processing

  • 会议论文

  • 发表日期：

    2025年

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  • Tianhao Wang,
  • Xiao Li,
  • Akash Mukhopadhyay,
  • Shivakant Shukla,
  • Glenn J. Grant

摘要

Transitioning vehicle manufacturing to predominantly recycled materials offers significant energy savingsEnergy saving and reduces CO2 emissionsEmissions. However, impuritiesImpurities, particularly in recycled light alloys like aluminumAluminum, pose challenges and hinder increased recyclingRecycling in conventional manufacturing. Solid Phase ProcessingSolid phase processing (SPP) presents a more efficient and environmentally friendly method for recyclingRecycling secondary aluminum alloysAluminum alloy. By breaking down impuritiesImpurities into smaller sizes and redistributing them uniformly, SPP prevents these impuritiesImpurities from initiating cracks under external loads, thereby enhancing the overall performance of recycled materials. However, determining the threshold level of impuritiesImpurities—which varies by type, concentration, and size—can be time-consuming. This study aims to expedite this process by developing a rapid screening methodology. This approach involves generating bulk-scale samples with gradient impurityImpurities concentrations, enabling quicker assessments of optimal levels. The results demonstrate that Fe impurityImpurities powders are reduced to smaller sizes during the SPP process compared to their initial state and are uniformly distributed along the extruded rod. The final product contains Al-Fe-Si particles due to the presence of Fe impuritiesImpurities.