Relationship between Voronoi entropy and the viscosity of Zr36Cu64 alloy melt based on molecular dynamics

doi:10.1088/1674-1056/24/12/126102

Abstract Molecular dynamics simulation is used to investigate the relationship between Voronoi entropy and viscosity for rapid solidification processing of Zr₃₆Cu₆₄ binary alloy melt. The simulation results at different temperatures, cooling rates, and pressures, show that Voronoi entropy is able to accurately describe the relationship of the transition between the cluster structure and the viscosity of Zr₃₆Cu₆₄ binary alloy melt through Voronoi polyhedron analysis. That is, the higher the degree of order of the microstructure, the lower the Voronoi entropy is and the higher the viscosity is. The simulation provides an important reference for studying metallic glass with high glass-forming ability.

Keywords: alloy melt molecular dynamics simulation Voronoi entropy viscosity

Received: 01 June 2015
Revised: 12 August 2015
Accepted manuscript online:

PACS:	61.20.Ja	(Computer simulation of liquid structure)
	61.43.Dq	(Amorphous semiconductors, metals, and alloys)
	61.43.Bn	(Structural modeling: serial-addition models, computer simulation)

Fund: Project supported by the National Basic Research Program of China (Grant No. 2013CB733000) and the National Natural Science Foundation of China (Grant Nos. 51271161 and 51271162).

Corresponding Authors: Liu Ri-Ping
E-mail: riping@ysu.edu.cn

Cite this article:

Gao Wei (高伟), Feng Shi-Dong (冯士东), Zhang Shi-Liang (张世良), Qi Li (戚力), Liu Ri-Ping (刘日平) Relationship between Voronoi entropy and the viscosity of Zr₃₆Cu₆₄ alloy melt based on molecular dynamics 2015 Chin. Phys. B 24 126102

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Relationship between Voronoi entropy and the viscosity of Zr36Cu64 alloy melt based on molecular dynamics

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Relationship between Voronoi entropy and the viscosity of Zr₃₆Cu₆₄ alloy melt based on molecular dynamics