Correlation between atomic structure evolution and strength in a bulk metallic glass at cryogenic temperature

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...

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Bibliographic Details
Published inScientific reports Vol. 4; no. 1; p. 3897
Main Authors Tan, J, Wang, G, Liu, Z Y, Bednarčík, J, Gao, Y L, Zhai, Q J, Mattern, N, Eckert, J
Format Journal Article
LanguageEnglish
Published England Nature Publishing Group 28.01.2014
Subjects
Alloys
Evolution
Glass
Mechanical properties
Temperature effects
X-rays
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Summary: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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ISSN:2045-2322
2045-2322
DOI:10.1038/srep03897