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To pursue green and low-carbonCarbon production, designing and developing continuous castingContinuous casting to replace direct chill castingCasting for producing8021 aluminium foil 8021 aluminum foilAluminum foil sheets for aluminumAluminum-plastic film holds significant application potential. This work investigated the evolution of the precipitatesPrecipitate, microstructureMicrostructure, and textureTexture of 8021 sheets during the cold rolling process, along with the influence of the aluminum foilAluminum foil sheets on the aluminumAluminum-plastic film. This work investigated the evolution of the precipitatesPrecipitate, microstructureMicrostructure, and textureTexture of 8021 sheets during the cold rolling process, along with the influence of the annealingAnnealing process on them. Indicates that the primary precipitatesPrecipitate are Al₃Fe, along with a small amount of α-AlFeSi. As the annealingAnnealing temperature increases, the average size of the precipitatesPrecipitate initially decreases. As the annealingAnnealing temperature increases, the average size of the precipitatesPrecipitate initially decreases slowly, reaching its minimum at 400 °C, and then significantly increases to 1.20 μm with a further temperature rise. The recrystallized grain size increases gradually from 28 to 38 μm. The initial textureTexture of the sheets is mainly {112}<111>, which is The initial textureTexture of the sheets is mainly {112}<111>, which is weakened after homogenizationHomogenization annealingAnnealing and significantly strengthened after cold rolling deformation. During annealingAnnealing under 300–500 °C, the {001}<100>textureTexture dominates.

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Microstructure and Texture Evolution of Continuous Casting 8021 Aluminum Alloy Sheets

  • 会议论文

  • 发表日期：

    2025年

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  • Jiacheng Zhang,
  • Chao Wu,
  • Dongwei Wei,
  • Dongke Li,
  • Zheyang Lin,
  • Hongpo Wang,
  • Zizong Zhu

摘要

To pursue green and low-carbonCarbon production, designing and developing continuous castingContinuous casting to replace direct chill castingCasting for producing8021 aluminium foil 8021 aluminum foilAluminum foil sheets for aluminumAluminum-plastic film holds significant application potential. This work investigated the evolution of the precipitatesPrecipitate, microstructureMicrostructure, and textureTexture of 8021 sheets during the cold rolling process, along with the influence of the aluminum foilAluminum foil sheets on the aluminumAluminum-plastic film. This work investigated the evolution of the precipitatesPrecipitate, microstructureMicrostructure, and textureTexture of 8021 sheets during the cold rolling process, along with the influence of the annealingAnnealing process on them. Indicates that the primary precipitatesPrecipitate are Al₃Fe, along with a small amount of α-AlFeSi. As the annealingAnnealing temperature increases, the average size of the precipitatesPrecipitate initially decreases. As the annealingAnnealing temperature increases, the average size of the precipitatesPrecipitate initially decreases slowly, reaching its minimum at 400 °C, and then significantly increases to 1.20 μm with a further temperature rise. The recrystallized grain size increases gradually from 28 to 38 μm. The initial textureTexture of the sheets is mainly {112}<111>, which is The initial textureTexture of the sheets is mainly {112}<111>, which is weakened after homogenizationHomogenization annealingAnnealing and significantly strengthened after cold rolling deformation. During annealingAnnealing under 300–500 °C, the {001}<100>textureTexture dominates.