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Ductile Fe-based amorphous alloy
- Authors
- Kim, Hong-Kyu; Lee, Kwang-Bok; Lee, Jae-Chul
- Issue Date
- 30-8월-2012
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Amorphous alloy; Phase separation; Structural disordering; Strain localization; Plasticity
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.552, pp.399 - 403
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
- Volume
- 552
- Start Page
- 399
- End Page
- 403
- ISSN
- 0921-5093
- Abstract
- Experiments demonstrated that the addition of a minute amount of V to Fe52Co(20-x)B20Si4Nb4Vx amorphous alloy induces atomic-scale phase separation, which dramatically enhances the plasticity. Especially, Fe52Co17.5B20Si4Nb4V2.5 amorphous alloy exhibited a strength of 4.7 GPa and a fracture strain of 8.0%, which is the largest strain reported for Fe-based amorphous alloys. In this study, the structural origin of the enhanced plasticity is explored by examining the role played by the phase separating element on the packing density and strain localization. (c) 2012 Elsevier B.V. All rights reserved.
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