Short-to-medium range order of Al–Mg metallic glasses studied by molecular dynamics simulations

Wang, C.C.; Wong, Chee How

doi:10.1016/j.jallcom.2011.08.075

Cited by 44 publications

(10 citation statements)

References 42 publications

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“…The disordered structure can be more correctly characterized by the concept of a medium range‐order . It extends as to the coordination spheres with the size up to 1.2 nm.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of local atomic configurations in ball‐milled fullerenes

Rud

Kirian

Ніконова³

et al. 2016

Materialwissenschaft Werkst

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Structural changes occurring in C 60 fullerenes after ball-milling processing were studied. The quantitative characteristics of the local atomic configurations were reconstructed by the reverse Monte Carlo method in the structure of pristine and ball-milled fullerenes C 60 , respectively. It is shown that 3-fold atomic rings, indicating complete amorphization of crystalline fullerenes, are dominant in the structure of material after 14 h treatment. The behavior of the distribution of the sphericity coefficient of Voronoi polyhedra validates a gradual structural disordering of molecular crystal of C 60 and, respectively, the formation of amorphous carbon with randomly arranged closepacked structure after continuous ball-milling treatment.

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“…The disordered structure can be more correctly characterized by the concept of a medium range‐order . It extends as to the coordination spheres with the size up to 1.2 nm.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of local atomic configurations in ball‐milled fullerenes

Rud

Kirian

Ніконова³

et al. 2016

Materialwissenschaft Werkst

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“…[19] was adopted In the present work. Mendelev's potential fitted the ab initio data and Al-rich part of the measured solid-liquid phase diagram fairly well, and had obtained creditable simulation results [20][21][22][23]. The total energy of the N particles' system takes the following form …”

Section: Methods and Modelmentioning

confidence: 99%

Molecular Dynamics Study of the Tensile Deformation on Aluminum nanorod

Liu¹,

Shao²,

Zeng³

et al. 2016

Proceedings of the 2016 4th International Conference on Sensors, Mechatronics and Automation (ICSMA 2016)

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Abstract.To study the deformation behavior of the nanorods and further explore the deformation difference among nanorods, nanowires and bulk materials, the uniaxial tension of aluminum nanorod under different stretching rate was conducted by the molecular dynamics method. The effect of stretching rate on the tensile deformation of nanorod was investigated by considering the variation of the energy, engineering stress, yield stress, Youngs modulus changes with the strain. Further the deformation mechanism was discussed based on the study of the snapshots of the microstructure transformaiton at different stages. It was found that, when the stretching rate is under 9.26×10 9 s -1 , the deformation behavior of the aluminum nanorod was similar with that of aluminum nanowire and crystal at room temperature, and presents one necking fracture mechanism. We can obtain high yield strength and yield strain. However, when the strain rate exceeding 9.26×10 9 s -1 , the nanorod fractured near the boundaries and presents two necking mechanism, which is greatly different with that of the nano-wire or bulk materials.

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“…However, for VS-, ES-, FS-, and TSconnected full icosahedra, only 25, 24, 23, and 19 atoms respectively are required to form 2 full icosahedra. Also, a high fraction of full icosahedra in the system facilitates forming intensive interconnecting networks since full icosahedra interact and connect with one another easily if they are the predominant clusters in the system [23].…”

Section: Medium-range Ordermentioning

confidence: 99%