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The Mg-8wt.%Sn-1.5wt.%Al alloy exhibits excellent ductility after extrusion at 200 ℃ (0.5 mm/s). The metallographic microscope results show that the size of the grain (the extruded-alloy) refined to1.98 μm, which was refined greatly compared with the generally high-temperature extrusion. The electron backscatter diffraction gives the same results, showing that the alloy has a weak base texture, which was 5.231 on the crystallographic plane (0001). The percentage elongation is 20%, the tensile strength is 300 MPa, and the yield strength is 200 MPa after extrusion as well as 8%, 425 MPa and 318 MPa after aging.

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Study on the Microstructure and Mechanical Properties of the Mg-8wt.% Sn-1.5wt.% Al Magnesium Alloys Deformed at Low-Temperature

  • 会议论文

  • 发表日期：

    2025年

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  • Zhaoqian Sun,
  • Yongjun Li,
  • Kui Zhang,
  • Xinggang Li,
  • Minglong Ma,
  • Guoliang Shi,
  • Jiawei Yuan,
  • Dongjie Chen

摘要

The Mg-8wt.%Sn-1.5wt.%Al alloy exhibits excellent ductility after extrusion at 200 ℃ (0.5 mm/s). The metallographic microscope results show that the size of the grain (the extruded-alloy) refined to1.98 μm, which was refined greatly compared with the generally high-temperature extrusion. The electron backscatter diffraction gives the same results, showing that the alloy has a weak base texture, which was 5.231 on the crystallographic plane (0001). The percentage elongation is 20%, the tensile strength is 300 MPa, and the yield strength is 200 MPa after extrusion as well as 8%, 425 MPa and 318 MPa after aging.