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      https://www.ias.ac.in/article/fulltext/boms/034/07/1507-1510

    • Keywords

       

      Mg–Cu–Dy; glass-forming ability; bulk metallic glass.

    • Abstract

       

      The glass-forming ability (GFA) of ternary Mg–Cu–Dy alloys was systematically investigated by using differential scanning calorimetry (DSC) and X-ray diffractometry (XRD) techniques. The results showed that a series of ternary Mg–Cu–Dy bulk metallic glasses (BGMs) with a diameter of 4–8 mm were successfully fabricated in the system with conventional Cu-mold casting method. Mg55Cu32Dy13, Mg60Cu27Dy13, Mg65Cu25Dy10 and Mg70Cu17Dy13 BMGs exhibit a clear glass transition, a broad supercooled liquid region and different crystallization and melting behaviours. They have supercooled liquid region ($\Delta T_{x}$) from 41 K to 65 K, reduced glass transition temperature ($T_{rg}$) from 0.5363 to 0.5974 and 𝛾 parameter from 0.4038 to 0.4136. The 𝛾 shows a relatively good agreement with the GFA of the BGMs. On the other hand, a high fracture compressive strength of 624 MPa was obtained for Mg60Cu27Dy13 BMG.

    • Author Affiliations

       

      X F Wu1 Y Kang1 F F Wu1 K Q Qiu2 L K Meng1

      1. School of Materials Science and Engineering, Liaoning University of Technology, 121001 Jinzhou, PR China
      2. School of Materials Science and Engineering, Shenyang University of Technology, 110023 Shenyang, PR China
    • Dates

       
  • Bulletin of Materials Science | News

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