期刊
SCIENTIFIC REPORTS
卷 4, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/srep03897
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资金
- Alexander von Humboldt Foundation
- NSF of China [51171098, 51222102, 51301078]
- Innovation Program of Shanghai Municipal Education Commission [12ZZ090]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- 085 project in Shanghai University
A model Zr41.25Ti13.75Ni10Cu12.5Be22.5 (at.%) bulk metallic glass (BMG) is selected to explore the structural evolution on the atomic scale with decreasing temperature down to cryogenic level using high energy X-ray synchrotron radiation. We discover a close correlation between the atomic structure evolution and the strength of the BMG and find out that the activation energy increment of the concordantly atomic shifting at lower temperature is the main factor influencing the strength. Our results might provide a fundamental understanding of the atomic-scale structure evolution and may bridge the gap between the atomic-scale physics and the macro-scale fracture strength for BMGs.
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