Journal
JOURNAL OF MATERIALS SCIENCE
Volume 53, Issue 10, Pages 7891-7899Publisher
SPRINGER
DOI: 10.1007/s10853-018-2098-6
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Funding
- National Natural Science Foundation of China [51671070, 51371065]
- State Key Laboratory of Advanced Welding and Joining, China [AWJ-Z16-02]
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Here, we employ isothermal annealing on a ZrCuNiAl bulk metallic glass (BMG) to obtain different structural states. The nanohardness of the studied Zr-based BMG shows a clear transition from heterogeneous to homogeneous distribution and the Poisson's ratio gradually decreases with prolonging the isothermal annealing time. Then, the structural change is analyzed using high-resolution transmission electron microscope. The structure-Poisson's ratio relation can be quantitatively illustrated by a rule of mixture. These findings have implications for better understanding the structure-property relation from atomic level and thus exploring high-performance BMGs of excellent strength and ductility.
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