Flow units as dynamic defects in metallic glassy materials

Z Wang, WH Wang - National Science Review, 2019 - academic.oup.com
In a crystalline material, structural defects such as dislocations or twins are well defined and
largely determine the mechanical and other properties of the material. For metallic glass …

Entropy-driven atomic activation in supercooled liquids and its link to the fragile-to-strong transition

W Chu, Z Wang, N Ren, B Dong, J Yu, P Guan… - Science China Physics …, 2023 - Springer
As a common but critical dynamic crossover in glass-forming liquids (GFLs), the discovery of
fragile-to-strong (FS) transition promises a novel route for understanding supercooled liquid …

Universal correlations between the fragility and interparticle repulsion of glass-forming liquids

P Lunkenheimer, F Humann, A Loidl… - The Journal of Chemical …, 2020 - pubs.aip.org
A recently published analytical model describing and predicting elasticity, viscosity, and
fragility of metallic melts is applied for the analysis of about 30 nonmetallic glassy systems …

[HTML][HTML] The effect of Ni or Co additions on the structure of Zr60Cu30Al10 bulk metallic glass revealed by high-energy synchrotron radiation

ME Stiehler, NT Panagiotopoulos, DS Keeble… - Materials Today …, 2022 - Elsevier
The effect of substituting Cu by elemental additions of Ni or Co on the atomic structure of the
Zr 60 Cu 30 Al 10 ternary bulk metallic glass (BMG) is studied using high-energy …

Atomic-scale expressions for viscosity and fragile-strong behavior in metal alloys based on the Zwanzig-Mountain formula

G Chevallard, K Samwer, A Zaccone - Physical Review Research, 2020 - APS
We combine the shoving model of T-dependent viscosity of supercooled liquids with the
Zwanzig-Mountain formula for the high-frequency shear modulus using the g (r) of molecular …

Fragility crossover mediated by covalent-like electronic interactions in metallic liquids

HR Zhang, L Gao, YH Ye, JX Zhang, T Zhang… - Materials …, 2024 - iopscience.iop.org
Fragility is one of the central concepts in glass and liquid sciences, as it characterizes the
extent of deviation of viscosity from Arrhenius behavior and is linked to a range of glass …

Liquid structure and thermophysical properties of ternary Ni-Fe-Co alloys explored by molecular dynamics simulations and electrostatic levitation experiments

JF Zhao, HP Wang, PF Zou, CH Zheng, MJ Lin… - … Materials Transactions A, 2021 - Springer
The structure, thermodynamic and dynamic properties of normal and metastable liquid Ni 2 x
Fe 50− x Co 50− x alloys were systematically investigated by combining electrostatic …

[HTML][HTML] Density, excess volume, and structure of Fe–Cr–Ni melts

S Jeon, MP Sansoucie, O Shuleshova… - The journal of …, 2020 - pubs.aip.org
The relationship between the excess volume and the structure of Fe–Cr–Ni melts is
investigated using containerless levitation and in situ high-energy synchrotron x-ray …

The anharmonicity role of interatomic potential in predicting glass formation

J Yu, Z Wang, L Hu, W Chu, Y Bai - Scripta Materialia, 2022 - Elsevier
Although many criteria were proposed to predict the glass forming ability (GFA) of alloys, the
precise correlation between the minor addition of elements and the glass formation remains …

[HTML][HTML] Interatomic potential controlled glass forming processes of binary CuZr melts

J Yu, Z Wang, W Chu, Y Bai, L Hu - Journal of Non-Crystalline Solids: X, 2023 - Elsevier
It has been a long-sought goal to explore the nature of amorphous formation. Investigate the
role of interatomic potential can be a fascinating method to study this myth from bottom up. In …