화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.19, No.2, 79-84, February, 2009
DOI10.3740/MRSK.2009.19.2.079  Export Citation
비정질 합금의 소성에 미치는 조성분리 원소의 역할 : 실험 및 전산모사 연구
Role of A phase Separating Element on the Plasticity of Amorphous Alloys : Experiment and Atomic Simulation Study
박경원, 이창면, 사인영1, 이병주1, 이재철†
  • 고려대학교 신소재공학과
  • 1POSTECH 신소재공학과
Kyoung-Won Park, Chang-Myeon Lee, Inyoung Sa1, Byeong-Joo Lee1, and Jae-Chul Lee†
  • Department of Materials Science and Engineering, Korea University, Seoul 136-701, Korea
  • 1Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea
E-mail:
A series of experiments demonstrated that an addition of Ag into (Cu0.5Zr0.5)100-xAgx amorphous alloys alters the plasticity of the alloys in a systematic manner. Energy dispersive x-ray spectroscopy (EDS) conducted on the (Cu0.5Zr0.5)100-xAgx 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 (Cu0.5Zr0.5)100-xAgx 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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