STZ-Vortex model: The key to understand STZ percolation and shear banding in metallic glasses

D Şopu - Journal of Alloys and Compounds, 2023 - Elsevier
The fast dynamics and localized nature of shear banding together with the disordered
structure of metallic glasses make it difficult to gain an understanding of the mechanism of …

Atomic-scale mechanisms of the glass-forming ability in metallic glasses

L Yang, GQ Guo, LY Chen, CL Huang, T Ge, D Chen… - Physical review …, 2012 - APS
The issue, composition dependence of glass-forming ability (GFA) in metallic glasses (MG),
has been investigated by systematic experimental measurements coupled with theoretical …

Machine learning modeling for the prediction of plastic properties in metallic glasses

N Amigo, S Palominos, FJ Valencia - Scientific Reports, 2023 - nature.com
Metallic glasses are one of the most interesting mechanical materials studied in the last
years, but as amorphous solids, they differ strongly from their crystalline counterparts. This …

Temperature-dependent structure evolution in liquid gallium

LH Xiong, XD Wang, Q Yu, H Zhang, F Zhang, Y Sun… - Acta Materialia, 2017 - Elsevier
Temperature-dependent atomistic structure evolution of liquid gallium (Ga) has been
investigated by using in situ high energy X-ray diffraction experiment and ab initio molecular …

Anomalous structural dynamics in liquid Al80Cu20: An ab initio molecular dynamics study

WY Wang, JJ Han, HZ Fang, J Wang, YF Liang… - Acta Materialia, 2015 - Elsevier
In this work, the structural dynamics of liquid Al 80 Cu 20 is systematically investigated in
terms of the evolution of its atomic structure, diffusivity, viscosity and fragility through ab initio …

Microscopic origin of slow dynamics at the good glass forming composition range in Zr1− xCux metallic liquids

SG Hao, CZ Wang, MJ Kramer, KM Ho - Journal of Applied Physics, 2010 - pubs.aip.org
We have studied the structure and dynamics of a series of Zr 1− x Cu x metallic liquids at
temperatures of 1500 and 1300 K. We found that as the Cu composition increases, the Zr–Zr …

Deep machine learning potential for atomistic simulation of Fe-Si-O systems under Earth's outer core conditions

C Zhang, L Tang, Y Sun, KM Ho, RM Wentzcovitch… - Physical Review …, 2022 - APS
Using artificial neural-network machine learning (ANN-ML) to generate interatomic
potentials has been demonstrated to be a promising approach to address the longstanding …

[HTML][HTML] From elastic excitations to macroscopic plasticity in metallic glasses

D Şopu, X Yuan, F Moitzi, F Spieckermann, X Bian… - Applied materials …, 2021 - Elsevier
Shear transformation zone (STZ) remains the fundamental unit to explain plastic flow in
metallic glasses (MGs). Although STZs have been known and characterized for decades …

Short-range order structure motifs learned from an atomistic model of a Zr50Cu45Al5 metallic glass

JJ Maldonis, AD Banadaki, S Patala, PM Voyles - Acta Materialia, 2019 - Elsevier
The structural motifs of a Zr 50 Cu 45 Al 5 metallic glass were learned from atomistic models
using a new structure analysis method called motif extraction that employs point-pattern …

Thermodynamic and dynamical properties and structural evolution of binary Zr80Pt20 metallic liquids and glasses: Molecular dynamics simulations

M Çeltek, S Sengul - Journal of Non-Crystalline Solids, 2018 - Elsevier
The structural evolutions and thermodynamic and dynamical properties of binary Zr 80 Pt 20
metallic liquid and glass have been studied by classical molecular dynamics simulations …