1. The deformation and transformation of icosahedron in Mg70Zn30 metallic glasses.
- Author
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Liang, Yongchao, Zhang, Yuehong, Yu, Bangyi, Liu, Rangsu, Xie, Quan, and Tian, Zean
- Subjects
- *
METALLIC glasses , *DEFORMATIONS (Mechanics) , *SOLIDIFICATION , *MOLECULAR dynamics , *ATOMS - Abstract
A molecular dynamics simulation is performed to investigate the icosahedron in Mg 70 Zn 30 metallic glass during solidification at the cooling rate of 1 × 10 13 K/s. It is found that the 1551, 1541 and 1431 bond-types are closely related to 13-atom icosahedron-like clusters. Two kinds of clusters are very similar to full icosahedron in geometry. The three clusters can transform into each other by changing one bond between a pair of outer atoms. One distorted icosahedron act as the intermediate between the two others. This work provides an insight into the glass formation in alloy from the cluster-level structural viewpoint and will shed light on developing more metallic glasses. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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