Yield strength of “brittle” metallic glass

R Qu, CA Volkert, Z Zhang, F Liu - Journal of Materials Science & …, 2023 - Elsevier
Abstract “Brittle” metallic glass (MG) usually fractures catastrophically in a shattering mode
under macroscopic compression, because cleavage cracking of splitting that originates from …

Atomic-scale icosahedral short-range ordering in a rejuvenated Zr-based bulk metallic glass upon deep cryogenic treatment

Y Zhu, Y Zhou, A Wang, H Li, H Fu, H Zhang… - Materials Science and …, 2022 - Elsevier
Tailoring the formation and distribution of loose-packing regions and dense-packing regions
in the bulk metallic glasses (BMGs) has long been considered to facilitate macroscopic …

Flaw-insensitive fracture of a micrometer-sized brittle metallic glass

R Qu, R Maaß, Z Liu, D Tönnies, L Tian, RO Ritchie… - Acta Materialia, 2021 - Elsevier
Brittle materials, such as oxide glasses, are usually very sensitive to flaws, giving rise to a
macroscopic fracture strength that is much lower than that predicted by theory. The same …

[HTML][HTML] Effect of rare earth element Y on the crack propagation behavior of Mg alloys: A molecular dynamics simulation

XY Yang, HY Song - Physics Letters A, 2024 - Elsevier
The effect of the distribution and concentration of rare earth (RE) element Y, crack
orientation, temperature, and strain rate on the crack propagation behavior of the Mg alloys …

On the formation of shear bands in a metallic glass under tailored complex stress fields

SH Chen, T Li, WJ Chang, HD Yang, JC Zhang… - Journal of Materials …, 2020 - Elsevier
The formation of shear bands in metallic glasses (MGs) was examined by tailoring localized
complex stress fields (LCSFs). The findings have shown that the LCSFs in MGs can increase …

Effect of cryogenic thermal cycling on the microstructure and mechanical properties of Zr-based bulk metallic glasses

Z Long, P Tao, L Kong, G Wang, S Huang… - Materials Science and …, 2023 - Elsevier
This article investigates the effects of cryogenic thermal cycling (CTC) on the microstructure
and plasticity of Zr 60 Cu 20 Al 10 Ni 10 (Zr60) bulk metallic glass (BMG). The microstructure …

Tuning the mechanical properties of nanoglass-metallic glass composites with brick and mortar designs

S Yuan, PS Branicio - Scripta Materialia, 2021 - Elsevier
We use molecular dynamics simulations to characterize the tensile deformation and failure
of metallic glass (MG)-nanoglass (NG) composites designed with a brick and mortar …

The effects of glass–glass interfaces on thermodynamic and mechanical properties of Co–Fe–P metallic nano-glasses

T Li, K Ma, G Zheng - Journal of Materials Research, 2021 - Springer
Pulse electrodeposition is utilized to prepare Co–Fe–P metallic nano-glasses (NGs)
containing glassy grains with an average size D< 100 nm. The effects of glass–glass …

Size-dependent failure of the strongest bulk metallic glass

R Qu, D Tönnies, L Tian, Z Liu, Z Zhang, CA Volkert - Acta Materialia, 2019 - Elsevier
Upon reducing the sample size into micrometer scale, an obvious brittle-to-ductile transition
accompanied by a drastic change of failure mode from shattering to shear-banding was …

Effect of sample size and cooling rate on the plastic deformation behavior of bulk metallic glasses: A comparative study

HD Yang, LB Zhang, JS Zhang, HH Tang… - Journal of Non …, 2022 - Elsevier
Understanding the differences between the cooling-rate and size effects on the plastic
deformation behavior of bulk metallic glasses (BMGs) is important not only for uncovering …