195 citations · 952 across the 41 of their papers we have counts for
19 papers · 1 filter
The structure and migration of heavily irradiated grain boundaries and dislocations in Ni in the athermal limit
Ian Chesser, Peter M. Derlet, Avanish Mishra +6
The microstructural evolution at and near pre-existing grain boundaries (GBs) and dislocations in materials under high radiation doses is still poorly understood. In this work, we…
Shear-band cavitation determines the shape of the stress-strain curve of metallic glasses
A. Das, C. Ott, D. Pechimuthu +4
Metallic glasses are known to have a remarkably robust yield strength, admitting Weibull moduli as high as for crystalline engineering alloys. However, their post-yielding behavior…
Observation of transient and asymptotic driven structural states of tungsten exposed to irradiation
Daniel R. Mason, Suchandrima Das, Peter M. Derlet +8
Combining spatially resolved X-ray Laue diffraction with atomic-scale simulations, we observe how ion-irradiated tungsten undergoes a series of non-linear structural transformation…
Emergent structural length scales in a model binary glass --- the micro-second molecular dynamics time-scale regime
Peter M Derlet, Robert Maass
It is now possible to routinely perform atomistic simulations at the microsecond timescale. In the present work, we exploit this for a model binary Lennard-Jones glass to study str…
Thermal processing and enthalpy storage of an amorphous solid: a molecular dynamics study
P. M. Derlet, R. Maass
Using very long molecular dynamics simulation runs, temperature protocols spanning up to five orders of magnitude in time-scales are performed to investigate thermally activated st…
Micro-plasticity and recent insights from intermittent and small-scale plasticity
R. Maass, P. M. Derlet
Prior to macroscopic yielding, most materials undergo a regime of plastic activity that cannot be resolved in conventional bulk deformation experiments. In this pre-yield, or micro…