Molecular dynamics simulations of glass formation and local structure evolution in rapidly cooled Pd-Ni alloy melts under high pressure

被引：0

作者：

Qi Li ^{[1
]}

Dong Lifeng ^{[1
]}

Cheng Hua ^{[2
]}

Cui Zhanquan ^{[1
]}

Ma Mingzhen ^{[1
]}

Jing Qin ^{[1
]}

Li Gong ^{[1
]}

Liu Riping ^{[1
]}

Hu Zhuangqi ^{[2
]}

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

ACTA METALLURGICA SINICA | 2008年 / 44卷 / 02期

关键词：

molecular-dynamics simulation; high pressure; glass-forming ability; cluster; Pd-Ni melt;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The glass formation and the local structure of the rapidly cooled Pd55Ni45 alloy melt under high pressures are simulated by using molecular-dynamics method. The results show that pressure makes the critical cooling rates for glass formation reduce obviously. With the increase of pressure, the microstructure of the Pd55Ni45 Melt consisted mainly of a more compacted local structure with perfect icosahedra, which may be the main evidence for the contribution of the high pressure to the glass formation.

引用

页码：233 / 236

页数：4

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