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http://dx.doi.org/10.3740/MRSK.2009.19.2.079

Role of A phase Separating Element on the Plasticity of Amorphous Alloys : Experiment and Atomic Simulation Study  

Park, Kyoung-Won (Department of Materials Science and Engineering, Korea University)
Lee, Chang-Myeon (Department of Materials Science and Engineering, Korea University)
Sa, In-Young (Department of Materials Science and Engineering, Pohang University of Science and Technology)
Lee, Byeong-Joo (Department of Materials Science and Engineering, Pohang University of Science and Technology)
Lee, Jae-Chul (Department of Materials Science and Engineering, Korea University)
Publication Information
Korean Journal of Materials Research / v.19, no.2, 2009 , pp. 79-84 More about this Journal
Abstract
A series of experiments demonstrated that an addition of Ag into $(Cu_{0.5}Zr_{0.5})_{100-x}Ag_{x}$ amorphous alloys alters the plasticity of the alloys in a systematic manner. Energy dispersive x-ray spectroscopy (EDS) conducted on the $(Cu_{0.5}Zr_{0.5})_{100-x}Ag_{x}$ alloys exhibited the presence of compositional modulation, indicating that compositional separation had occurred. The presence of compositional modulation was also validated using a combined technique of molecular dynamics and Monte Carlo simulation. In this study, the effect of Ag on the compositional separation in $(Cu_{0.5}Zr_{0.5})_{100-x}Ag_{x}$ bulk amorphous alloys was investigated to understand the role played by the phase-separating element on the plasticity of the amorphous alloys.
Keywords
amorphous alloy; phase separation; plasticity; glass forming ability;
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