nm-수준의 상분리를 이용하여 제조한 고강도 고인성 철계 비정질 합금 : Fe-based Amorphous Alloy with High Strength and Toughness Synthesized based on nm-scale Phase Separation
Fe-based Amorphous Alloy with High Strength and Toughness Synthesized based on nm-scale Phase Separation
- 주제(키워드) amorphous alloy , phase-separation , structural disordering , shear localization , plasticity
- 발행기관 대한금속·재료학회
- 발행년도 2010
- 총서유형 Journal
- UCI G704-000085.2010.48.1.011
- KCI ID ART001417320
- 본문언어 한국어
초록/요약
Experiments have demonstrated that the addition of a moderate amount of V to Fe52Co(20-x)B20Si4-Nb4Vx amorphous alloy enhances the plasticity of the alloy. In particular, Fe52Co17.5B20Si4Nb4V2.5 alloy withstood a maximum of 8.3% strain prior to fracture along with a strength exceeding 4.7 GPa. Energy dispersive x-ray spectroscopy conducted on the Fe52Co17.5B20Si4Nb4V2.5 alloy exhibited evidence of compositional modulation, indicating that nm-scale phase separation had occurred at local regions. In this study, the role played by nm-scale phase separation on the plasticity was investigated in terms of structural disordering and shear localization in order to better understand the structural origin of the enhanced plasticity shown by the developed alloy.
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