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http://dx.doi.org/10.3740/MRSK.2005.15.4.281

Mechanical Properties of a Cu55Zr30Ti10Pd5 Bulk Amorphous Alloy  

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)
Publication Information
Korean Journal of Materials Research / v.15, no.4, 2005 , pp. 281-284 More about this Journal
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.
Keywords
Cu-Zr-Ti-Pd; Metallic glass; Glass-forming ability; Strength;
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