Nanoindentation and nanotribology behaviors of open-cell metallic glass nanofoams

Y Zhang, J Xu, Y Hu, S Ding, W Wu, R **a - International Journal of …, 2023 - Elsevier
An in-depth understanding of the mechanical properties of metallic glass nanofoams
(MGNFs) is critical to their potential multifunctional applications. In this work, the mechanical …

Atomistic simulations of tensile deformation of a nanoporous high-entropy alloy

OR Deluigi, F Valencia, N Amigo, F Aquistapace… - Journal of Materials …, 2022 - Springer
High-entropy alloys (HEAs) display outstanding mechanical properties which make possible
new technological applications. There are many studies of bulk HEAs, but here we focus on …

Weak boundary enabled tensile ductility in dealloyed porous Fe alloy

H **e, JC Shao, L Zou, HJ ** - Acta Materialia, 2023 - Elsevier
Dealloying has emerged as a new route to the synthesis of porous or nanoporous materials
for a variety of novel structural/functional applications. However, dealloyed (nano-) porous …

Topological changes and deformation mechanisms of nanoporous Ta under compression

NV von Bibow, EN Millán, CJ Ruestes - Computational Materials Science, 2024 - Elsevier
While the mechanical behavior of noble nanoporous metals has been the subject of
numerous studies, less is known about their recently developed refractory-based …

Nanoindentation of nanoporous tungsten: A molecular dynamics approach

FJ Valencia, R Ortega, RI González, EM Bringa… - Computational Materials …, 2022 - Elsevier
Nanoporous metals, also known as metallic nanofoams, offer a wide range of functionalities
and improved mechanical properties enabled by nanoscale effects. In particular, tungsten …

Characterization of the strain rate effect under uniaxial loading for nanoporous gold

GZ Voyiadjis, MH Saffarini, CJ Ruestes - Computational Materials Science, 2021 - Elsevier
While several studies assessed the behavior of nanoporous gold (NP-Au) under different
loading conditions for various material characteristics and loading scenarios, very limited …

Fracture toughness and destructive mechanism of ductile nanoporous metallic glass and its crystal-impregnated nanocomposite

YH Zhang, JF Xu, YQ Hu, L Su, SH Ding… - Science China …, 2023 - Springer
Nanoporous metallic glasses (NPMGs) and crystalline/amorphous nanocomposites exhibit
superior ductility over bulk macroscopic metallic glasses (MGs). Their fracture behaviors …

Displacive-Diffusive plasticity in nanoporous gold nanowires under tensile creep

S Mathesan, D Mordehai - Scripta Materialia, 2023 - Elsevier
While creep deformation of nanoporous gold (NPG) was argued to be mainly dislocation
mediated, we show using molecular dynamics simulations of tensile creep of NPG …

Molecular dynamics simulations of brittle to ductile transition in failure mechanism of silicon nitride nanoporous membranes

AK Shargh, GR Madejski, JL McGrath… - Materials Today …, 2020 - Elsevier
Abstract We use Molecular Dynamics simulations to study mechanical behaviors of
crystalline silicon nitride nanoporous membranes with different pore distribution upon tensile …

Effects of radiation damage on the yielding and fracture of nanowires

D Vizoso, R Dingreville - Nanoscale, 2024 - pubs.rsc.org
Since free surfaces act as perfect sinks for radiation-induced defects, nanowires, owing to
their high surface-to-volume ratio, are considered to be radiation tolerant. But the question …