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This review examines how magnetic fields, specifically electromagnetic stirring (EMS) and static fields, improve metal casting. Key findings include EMS reducing porosity by up to 85% and increasing tensile strength from 186 to 221 MPa in ZL205A alloys. In continuous steel casting, a 0.12 T magnetic field enhances microstructure uniformity by 75%, significantly reducing segregation. Applications covered include continuous casting, where defect rates drop by 10%, and direct chill casting of non-ferrous alloys, where hardness improves by 25% under a 0.2 T field. Challenges such as process control and cost are also discussed. The review highlights the benefits of magnetic fields in refining grain structure, reducing defects, and improving mechanical properties while proposing future research directions to optimize these technologies for better quality and efficiency in metal casting.

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How Can Magnetic Fields Improve the Metal Casting Process?

  • 会议论文

  • 发表日期：

    2025年

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  • Minh Tam Pham,
  • Huu Truyen Pham,
  • Thanh Binh Nguyen,
  • Ngoc Tu Nguyen

摘要

This review examines how magnetic fields, specifically electromagnetic stirring (EMS) and static fields, improve metal casting. Key findings include EMS reducing porosity by up to 85% and increasing tensile strength from 186 to 221 MPa in ZL205A alloys. In continuous steel casting, a 0.12 T magnetic field enhances microstructure uniformity by 75%, significantly reducing segregation. Applications covered include continuous casting, where defect rates drop by 10%, and direct chill casting of non-ferrous alloys, where hardness improves by 25% under a 0.2 T field. Challenges such as process control and cost are also discussed. The review highlights the benefits of magnetic fields in refining grain structure, reducing defects, and improving mechanical properties while proposing future research directions to optimize these technologies for better quality and efficiency in metal casting.