Volume 30 Issue 10
Oct.  2004
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Zhang Tao, Men Hua, Ti Yunjieet al. Formation and mechanical properties of Cu-Zr-Ti bulk glassy alloys[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 925-929. (in Chinese)
Citation: Zhang Tao, Men Hua, Ti Yunjieet al. Formation and mechanical properties of Cu-Zr-Ti bulk glassy alloys[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 925-929. (in Chinese)

Formation and mechanical properties of Cu-Zr-Ti bulk glassy alloys

  • Received Date: 28 Apr 2004
  • Publish Date: 31 Oct 2004
  • Cu-base bulk glassy alloys with high glass-forming ability were fabricated in Cu-Zr-Ti ternary system by copper mold casting. The critical diameter for glass formation was 5 mm for Cu60Zr40-xTix(x=7.5%, 10%, 12.5%) alloys, 4 mm for Cu60Zr25Ti15 alloy and 3 mm for Cu60Zr40-xTix(x=15%, 17.5%, 22.5%, 25%) alloys. The glassy alloys exhibited distinct glass transition together with supercooled liquid region in the range of 38~65 K. The Young’s modulus, compressive fracture strength, plastic strain and Vickers hardness of the bulk glassy alloys are in the range of 80~114 GPa, 1 730~1 865 MPa, 0.3%~1.5% and Hv 693~Hv 824, respectively, and increase with increasing Ti content in the alloys. The finding of the Cu-based bulk glassy alloys with high glass-forming ability, high fracture strength and distinct plastic strain indicates a possibility for subsequent development of glassy alloys with new compositions which can be used for structural materials.

     

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