Abnormal hardening and amorphization in an FCC high entropy alloy under extreme uniaxial tension

K Jiang, Q Zhang, J Li, X Li, F Zhao, B Hou… - International Journal of …, 2022 - Elsevier
Ever more extreme environments in advancing industrial applications motivate efforts to
design new generation of alloys with excellent mechanical properties. High entropy alloys …

Size effects and plastic deformation mechanisms in single-crystalline CoCrFeNi micro/nanopillars

Q Zhang, R Huang, J Jiang, T Cao, Y Zeng, J Li… - Journal of the …, 2022 - Elsevier
As emerging and revolutionary alloy materials, high entropy alloys (HEAs) have been
extensively studied because of their unique composition, microstructures and excellent …

Origins of strengthening and toughening effects in twinned nanocrystalline alloys of low stacking fault energy with heterogeneous grain structure

K Gan, D Yan, Y Zhang, Z Li - Journal of the Mechanics and Physics of …, 2023 - Elsevier
Low stacking-fault energy (SFE) nanocrystalline alloys with pre-existing nanotwins (PNTs)
and heterogeneous grain structure (HGS) exhibit exceptional strength-ductility …

Advances on in situ TEM mechanical testing techniques: a retrospective and perspective view

K Li, Y Bu, H Wang - Frontiers in Materials, 2023 - frontiersin.org
Over the past few decades, in situ transmission electron microscopy (TEM) has emerged as
a powerful experimental technique for materials design and characterization. It offers …

Unusual deformation mechanisms evoked by hetero-zone interaction in a heterostructured FCC high-entropy alloy

J Li, X Ma, K Lu, Y Wang, Y Zhu - Acta Materialia, 2025 - Elsevier
Understanding the synergistic mechanical effects of heterostructured materials remains
challenging due to the complexities in the underlying deformation mechanisms, which are …

Twin boundary spacing and loading direction dependent tensile deformation of nano-twinned Al10 (CrCoFeNi) 90 high-entropy alloy: an atomic study

D Yan, Z Yun, J Li - International Journal of Mechanical Sciences, 2023 - Elsevier
Experiments have shown that nanotwins play an important role in strengthening and
toughening high-entropy alloys (HEAs), which are closely associated with twin boundary …

Molecular dynamics simulation of tension and compression deformation behavior in CoCrCuFeNi high-entropy alloy: Effects of temperature and orientation

X Liu, L Chang, T Ma, C Zhou - Materials Today Communications, 2023 - Elsevier
This study utilizes molecular dynamics (MD) simulations to investigate the uniaxial tensile
and compressive deformation behavior of the face-centered cubic (FCC) CoCrCuFeNi high …

Atomistic investigation on the anisotropic elastic and plastic responses of nanotwinned metals

L Sun, L Jiao, Z Qin, L Zhu, B Gan, D Li - Mechanics of Materials, 2024 - Elsevier
Introducing nanotwins into materials is one of the important strengthening methods to
achieve the synergistic improvement of strength and ductility. The anisotropic mechanical …

Medium entropy alloy-induced strong size dependence in the strengthening and shear instability of nanolayered metallic composites

F Qin, K Dai, J Hou, W Lu, S Chen, J Li - Mechanics of Materials, 2024 - Elsevier
Medium/high entropy alloys (M/HEAs)-based nanolayered metallic composites have
attracted intensive scientific interests due to their superior mechanical properties. However …

Tailoring small-scale plasticity of nanotwined-copper micropillars via microstructures

S Yan, Z Zhong, Q Qin - Journal of Applied Physics, 2022 - pubs.aip.org
Nanotwined (nt) copper is attractive in applications such as microbumps in the
microelectronics industry because nt-copper presents sound mechanical and physical …