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In the aluminumAluminum heat treatment sectorAluminum Alloys, large resistive batch furnacesFurnace are used for many heat treatmentHeat treatment processes and are generally always running, operating at approximately 20–30% efficiency. The primary avenue for energy savingsEnergy saving lies in shortening heat treatmentHeat treatment times, which can be 24+ hours for solutionizing (450–625 °C) and aging treatments (150–250 ℃), depending on the alloy and specification requirements. The application of high magnetic fieldsMagnetic field (<9 T) has shown to significantly reduce aluminum alloyAluminum alloy heat treatment times, while achieving enhanced mechanical propertiesMechanical properties. Here, we explore the effects of thermomagnetic processingProcessing on the heat treatment response of a commercial aluminum alloyAluminum alloy A390.1. Heat treatmentHeat treatment times were reduced by >80%, while achieving ~10% improvement in microhardnessMicrohardness, and these improvements persisted after longer thermal exposures simulating use. The microstructural evolution and resulting properties will be discussed.

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Simultaneously Improving Process Efficiency and Mechanical Properties in Aluminum Alloys with Applied Magnetic Fields

  • 会议论文

  • 发表日期：

    2025年

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  • Michael S. Kesler,
  • Michael J. Thompson,
  • David Weiss,
  • Michele V. Manuel

摘要

In the aluminumAluminum heat treatment sectorAluminum Alloys, large resistive batch furnacesFurnace are used for many heat treatmentHeat treatment processes and are generally always running, operating at approximately 20–30% efficiency. The primary avenue for energy savingsEnergy saving lies in shortening heat treatmentHeat treatment times, which can be 24+ hours for solutionizing (450–625 °C) and aging treatments (150–250 ℃), depending on the alloy and specification requirements. The application of high magnetic fieldsMagnetic field (<9 T) has shown to significantly reduce aluminum alloyAluminum alloy heat treatment times, while achieving enhanced mechanical propertiesMechanical properties. Here, we explore the effects of thermomagnetic processingProcessing on the heat treatment response of a commercial aluminum alloyAluminum alloy A390.1. Heat treatmentHeat treatment times were reduced by >80%, while achieving ~10% improvement in microhardnessMicrohardness, and these improvements persisted after longer thermal exposures simulating use. The microstructural evolution and resulting properties will be discussed.