In Situ Atomic‐Scale Experiments Reveal the Atomistic Mechanisms of Grain Boundary Plasticity

Z Zhang, Y Feng, X Zhang, C Yang… - Advanced Functional …, 2025 - Wiley Online Library
Grain boundary (GB) plastic deformation is a critical deformation mode that can significantly
affect the microstructure and mechanical properties of metals. Given its importance …

Numerical simulation of nano-cutting behaviors for polycrystalline γ-TiAl alloy: the effect of grain sizes

H Cao, Z Guo, R Feng, H Li, R Fu, Y Zhou… - Journal of Manufacturing …, 2023 - Elsevier
As one of the most potentially lightweight and high-temperature structural materials, grain
size is a critical factor affecting the mechanical and cutting properties of γ-TiAl alloys during …

[HTML][HTML] Plastic evolution and phase transition mechanisms in γ-TiAl nano polycrystal by a molecular dynamics simulation

L Li, H Li, S Li, L Xu, X Fan, J Shi - Journal of Materials Research and …, 2024 - Elsevier
Abstract γ-TiAl based alloys are widely regarded as one important high-temperature
structural material, however the deformation behaviors are still not clearly clarified. The …

A molecular dynamics simulation to shed light on the mechanical alloying of an Al-Zr alloy induced by severe plastic deformation

AY Morkina, RI Babicheva, EA Korznikova, NA Enikeev… - Metals, 2023 - mdpi.com
In a recent experimental work, as a result of severe plastic deformation, a non-equilibrium
solid solution was obtained despite the very limited solubility of zirconium (Zr) in aluminum …

Tension-compression asymmetry of grain-boundary sliding: A molecular dynamics study

X Li, AG Sheinerman, Z Zhu, F Zhao - Materials Letters, 2022 - Elsevier
The underlying mechanisms of the tension–compression asymmetry of grain boundary (GB)
sliding are studied by molecular dynamics (MD) simulations. The results show that the …

A modified Hall-Petch relation for predicting size-induced weakening effect on yield strength of coarse-grained thin films and wires

X Li, X Li - Materials Letters, 2023 - Elsevier
Tensile yield strength of coarse-grained thin films and wires is size-dependence, exhibiting
a “smaller is weaker” phenomenon, which causes a Hall-Petch deviation. Aiming at this …

A new idea of modeling shear band in metallic glass based on the concept of distributed dislocation

X Li, R Qu, W Rao, X Jiang - Journal of Non-crystalline Solids, 2022 - Elsevier
Shear bands are closely linked with the plasticity and fracture behaviors of metallic glasses
(MGs). This work proposes a new idea to predict shear bands by continuously distributed …

The Effect of Impact Load on the Atomistic Scale Fracture Behavior of Nanocrystalline bcc Iron

Z Zhao, Z Wang, Y Bie, X Liu, Y Wei - Nanomaterials, 2024 - mdpi.com
Nanocrystalline metals have many applications in nanodevices, especially nanoscale
electronics in aerospace. Their ability to resist fracture under impact produced by …

Impact of strip winding direction on the comprehensive performance of ultracrystalline magnetic core for current transformer

MX Yu, GM Shi, JZ Zhu, L Ma, B Li, S Ma - Journal of Materials Science …, 2024 - Springer
The demand for precision measuring transformers is growing steadily. This rising demand
necessitates resolving pertinent issues, including minimizing energy losses, enhancing …

Deformation mechanism of MWCNT/Ni composites under shear deformation: a molecular dynamics study

J Zuo, Y Hu, B Wu, R Shu, B Shu - Materials Research Express, 2024 - iopscience.iop.org
Multi-walled carbon nanotubes (MWCNTs) embedded in single-crystal and polycrystalline
nickel were modeled by molecular dynamics simulations. Shear deformation was applied to …