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This study investigates the impact of Si addition (0–0.5 wt%) on the strength and electrical conductivity (EC) of Al–Mg–Si conductor alloys, employing two distinct thermomechanical processing routes: the conventional route (CR) and the modified route (MR). A thorough microstructural analysis, utilizing techniques such as differential scanning calorimetry, transmission electron microscopy, and microhardness measurements, elucidates the combined effects of Si and the thermomechanical processing routes. The findings indicate that Si incorporation generally enhances strength at the expense of EC compared to the base alloy. Furthermore, adopting the MR yields superior strength and EC performance when compared to the CR.

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Enhancing the Synergy of Strength and Electrical Conductivity in 6xxx Conductor Alloy Through Si Addition and Optimized Thermomechanical Processing

  • 会议论文

  • 发表日期：

    2025年

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  • Emad Elgallad,
  • Siamak Nikzad Khangholi,
  • Alexandre Maltais,
  • X. -Grant Chen,
  • Mousa Javidani

摘要

This study investigates the impact of Si addition (0–0.5 wt%) on the strength and electrical conductivity (EC) of Al–Mg–Si conductor alloys, employing two distinct thermomechanical processing routes: the conventional route (CR) and the modified route (MR). A thorough microstructural analysis, utilizing techniques such as differential scanning calorimetry, transmission electron microscopy, and microhardness measurements, elucidates the combined effects of Si and the thermomechanical processing routes. The findings indicate that Si incorporation generally enhances strength at the expense of EC compared to the base alloy. Furthermore, adopting the MR yields superior strength and EC performance when compared to the CR.