한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)

한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
권호 표지

Consolidation of Bulk Metallic Glass Composites

  • Lee, Jin-Kyu (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology) ;
  • Kim, Hwi-Jun (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology) ;
  • Kim, Taek-Soo (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology) ;
  • Shin, Seung-Yong (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology) ;
  • Bae, Jung-Chan (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology)
  • 발행 : 2006.09.24
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초록

Bulk metallic glass (BMG) composites combining a $Cu_{54}Ni_6Zr_{22}Ti_{18}$ matrix with brass powders or $Zr_{62}A_{l8}Ni_{13}Cu_{17}$ metallic glass powders were fabricated by spark plasma sintering. The brass powders and Zr-based metallic glass powders added for the enhancement of plasticity are well distributed homogeneously in the Cu-based metallic glass matrix after consolidation. The BMG composites show macroscopic plasticity after yielding, and the plastic strain increased to around 2% without a decrease in strength for the composite material containing 20 vol% Zr-based amorphous powders. The proper combination of strength and plasticity in the BMG composites was obtained by introducing a second phase in the metallic glass matrix.

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