首页|Unveiling the early stage evolution of local atomic structures in the crystallization process of a metallic glass

Unveiling the early stage evolution of local atomic structures in the crystallization process of a metallic glass

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The early stage evolution of local atomic structures in a multicomponent metallic glass during its crystallization pro-cess has been investigated via molecular dynamics simulation.It is found that the initial thermal stability and earliest stage evolution of the local atomic clusters show no strong correlation with their initial short-range orders,and this leads to an observation of a novel symmetry convergence phenomenon,which can be understood as an atomic structure manifestation of the ergodicity.Furthermore,in our system we have quantitatively proved that the crucial factor for the thermal stability against crystallization exhibited by the metallic glass is not the total amount of icosahedral clusters,but the degree of global connectivity among them.

metallic glasscrystallizationmolecular dynamics simulationlocal atomic clusters

马琳、杨晓东、杨锋、周鑫嘉、武振伟

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Institute of Nonequilibrium Systems,School of Systems Science,Beijing Normal University,Beijing 100875,China

members of the"Beijing Metallic Glass Club"for the longterm fruitful discussions国家自然科学基金国家自然科学基金

5203101611804027

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(3)
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