Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Mechanical Properties of a Cu55Zr30Ti10Pd5 Bulk Amorphous Alloy

Cu55Zr30Ti10Pd5 비정질 합금의 기계적 거동

  • Choi Won Wook (Department of Metallurgical Engineering, Chungnam National University) ;
  • Gato H. (Department of Metallurgical Engineering, Tohoku University) ;
  • Kim Hyoung Seop (Department of Metallurgical Engineering, Chungnam National University) ;
  • Hong Sun Ig (Department of Metallurgical Engineering, Chungnam National University) ;
  • Inoue A. (Department of Metallurgical Engineering, Tohoku University)
  • 최원욱 (충남대학교 금속공학과) ;
  • ;
  • 김형섭 (충남대학교 금속공학과) ;
  • 홍순익 (충남대학교 금속공학과) ;
  • Published : 2005.04.01
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Abstract

Room and high temperature deformation behaviors of Cu-Zr-Ti-Pd bulk metallic glasses produced by copper mold casting were investigated. The addition of Pd was shown to enhance the glass forming ability and thermal stability of Cu-Zr-Ti base bulk metallic glass. The compressive strength of $Cu_{55}Zr_{30}Ti_{10}Pd_5$ bulk metallic glass was 2230 MPa with 1.8 plastic strain. The stress overshoot and yield drop phenomenon were observed below $487^{\circ}C$ and a drastic decrease in the flow stress was observed at $487^{\circ}C$. The stress overshoot is thought to be associated with stress-induced structural relaxation.

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References

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