Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Fabrication and Mechanical Properties of Ni-based Amorphous Bulk Alloys

Ni기 비정질 벌크합금의 제조와 기계적 성질

  • Kim, Sung-Gyoo (Department of Production & Joining Engineering, Pukyung National University)
  • 김성규 (부경대학교 생산가공학과)
  • Published : 2002.12.20
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Abstract

Ni-base amorphous alloys were manufactured using melt-spinning and Cu-mold die casting methods. Amorphous formability, the supercooled liquid region before crystallization and mechanical properties were examined. The reduced glass transition temperature and the supercooled liquid region of $Ni_{51} Nb_{20} Zr_9 Ti_9 Co_8 Cu_3$alloy were 0.621 and 46 K respectively. $Ni_{51} Nb_{20} Zr_9 Ti_9 Co_8 Cu_3$ alloy was produced in the rod shape 3mm diameter using the Cu-mold die casting. Hardness, compression strength, elongation and elastic modulus of the alloy were 850 DPN, 2.75 GPa, 1.8% and 150 GPa respectively. Moreover, compression strength of 2.75 GPa was the highest value in the amorphous bulk alloy produced up to now.

Keywords

References

  1. A. Inoue, T. Zhang and T. Masumoto : Mater. Trans., JIM, 'Al-La-Ni Amorphous Alloys with a Wide Supercooled Liquid Region', 30(1989), 965-972
  2. A. Inoue, H. Yamaguchi, T. Zhang and T. Masumoto : Mater. Trans., JIM, 'Al-La-Ni Amorphous Alloys with a Wide Supercooled Liquid Region', 31(1990), 104-109
  3. S. G. Kim, A. Inoue and T. Masumoto: Mater. Trans., JIM, 'High Mechanical Strengths of Mg-Ni-Y and Mg-Cu-Y Amorphous Alloys with Significant Supercooled Liquid Region', 31(1990), 929-934
  4. A. Inoue, M. Kohinata K. Ohtera A. P. Tsai and T. Masumoto : Mater. Trans., JIM, 'Mg-Ni-La Amorphous Alloys with a Wide Supercooled Liquid Region', 30(1989), 378-381
  5. A. Inoue, T. Zhang and T. Masumoto : Mater. Trans., JIM, 'Zr-Al-Ni Amorphous Alloys with High Glass Transition Temperature and Significant Supercooled Liquid Region', 31(1990), 177-183
  6. A. Inoue, T. Zhang and T. Masumoto: J. Non-Cryst. Solids, 'Glass-forming ability of alloys', 156-158(1993), 473-480
  7. A. Peker and W. L. Johnson : Appl. Phys. Lett., 'A highly processable metallic glass: $zr_{41.2}$ $Ti_{13.8}$ $Cu_{12.5},$Ni_{10.0}$$Be_{22.5}$',63(1993), 2342-2344 https://doi.org/10.1063/1.110520
  8. N. Nishiyama : Ph. D Dissertation of Tohoku University, Japan, 'Formation and properties of Pd-based bulk metallic glass'(1997)
  9. X. H. Lin and W. L. Johnson : J. Appl. Phys., 'Formation of Ti-Zr-Cu-Ni bulk metallic glasses', 78(1995), 6514-6519 https://doi.org/10.1063/1.360537