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Korean Journal of Materials Research, Vol.15, No.4, 281-284, April, 2005
Cu 55 Zr 30 Ti 10 Pd 5 비정질 합금의 기계적 거동
Mechanical Properties of a Cu 55 Zr 30 Ti 10 Pd 5 Bulk Amorphous Alloy
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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 [Math Processing Error] bulk metallic glass was 2230 MPa with 1.8 plastic strain. The stress overshoot and yield drop phenomenon were observed below [Math Processing Error] and a drastic decrease in the flow stress was observed at [Math Processing Error] . The stress overshoot is thought to be associated with stress-induced structural relaxation.
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