Advancing the mechanical performance of glasses: perspectives and challenges
Glasses are materials that lack a crystalline microstructure and long‐range atomic order.
Instead, they feature heterogeneity and disorder on superstructural scales, which have …
Instead, they feature heterogeneity and disorder on superstructural scales, which have …
Achieving strength-ductility synergy in metallic glasses via electric current-enhanced structural fluctuations
Structural applications of metallic glasses are limited by their room-temperature brittleness
and strain-softening, associated with the extreme localization of plastic flow in shear bands …
and strain-softening, associated with the extreme localization of plastic flow in shear bands …
Strain-hardening and suppression of shear-banding in rejuvenated bulk metallic glass
J Pan, YP Ivanov, WH Zhou, Y Li, AL Greer - Nature, 2020 - nature.com
Strain-hardening (the increase of flow stress with plastic strain) is the most important
phenomenon in the mechanical behaviour of engineering alloys because it ensures that …
phenomenon in the mechanical behaviour of engineering alloys because it ensures that …
Achieving structural rejuvenation in metallic glass by modulating β relaxation intensity via easy-to-operate mechanical cycling
Structural rejuvenation is an effective measure to optimize the mechanical properties of
metallic glasses (MGs). Sophisticated solutions to rejuvenation include thermal cycling, laser …
metallic glasses (MGs). Sophisticated solutions to rejuvenation include thermal cycling, laser …
Low-frequency vibrational modes of stable glasses
Unusual features of the vibrational density of states D (ω) of glasses allow one to rationalize
their peculiar low-temperature properties. Simulational studies of D (ω) have been restricted …
their peculiar low-temperature properties. Simulational studies of D (ω) have been restricted …
Low-energy quasilocalized excitations in structural glasses
Glassy solids exhibit a wide variety of generic thermomechanical properties, ranging from
universal anomalous specific heat at cryogenic temperatures to nonlinear plastic yielding …
universal anomalous specific heat at cryogenic temperatures to nonlinear plastic yielding …
The effect of thermal cycling on the fracture toughness of metallic glasses
A wide range of behaviors, including non-monotonic rejuvenation and relaxation, and the
ability to qualitatively change the effect by varying the structural state of the glass was …
ability to qualitatively change the effect by varying the structural state of the glass was …
Pinching a glass reveals key properties of its soft spots
It is now well established that glasses feature quasilocalized nonphononic excitations—
coined “soft spots”—, which follow a universal ω 4 density of states in the limit of low …
coined “soft spots”—, which follow a universal ω 4 density of states in the limit of low …
Glass stability changes the nature of yielding under oscillatory shear
We perform molecular dynamics simulations to investigate the effect of a glass preparation
on its yielding transition under oscillatory shear. We use swap Monte Carlo to investigate a …
on its yielding transition under oscillatory shear. We use swap Monte Carlo to investigate a …
Metastability in high entropy alloys
The high entropy effect is often insufficient to fully stabilize single-phase solid solutions
(SPSS), yielding only few, mostly metastable SPSS. While the prospective space of …
(SPSS), yielding only few, mostly metastable SPSS. While the prospective space of …