29 citations · 90 across the 9 of their papers we have counts for
8 papers · 1 filter
General-Purpose Machine-Learned Potential for CrCoNi Alloys Enabling Large-Scale Atomistic Simulations with First-Principles Accuracy
Yong-Chao Wu, Tero Mäkinen, Mikko Alava +1
CrCoNi medium-entropy alloys exhibit exceptional mechanical properties arising from pronounced chemical complexity, including short-range order (SRO), and low stacking fault energy…
Exploring the impact of Ti/Al on L12 nanoprecipitation and deformation behavior in CoNiFeAlTi multi-principal element alloys through atomistic simulations
Amin Esfandiarpour, Anshul D. S. Parmar, Silvia Bonfanti +3
Recent studies on CoNi-based multi-principal element alloys (MPEAs) have demonstrated high strength and ductility, attributed to the formation of stable L12 nanoscale precipitates.…
Comparative study on radiation resistance of WTaCrV high-entropy alloy and tungsten in helium-containing conditions
Amin Esfandiarpour, Damian Kalita, Zbigniew Koziol +1
W and W-based high-entropy alloys (HEAs) are promising candidates for plasma-facing materials in fusion reactors. While irradiation studies on W have revealed a tendency for helium…
Serrated plastic flow in slowly-deforming complex concentrated alloys: universal signatures of dislocation avalanches
Kamran Karimi, Amin Esfandiarpour, Stefanos Papanikolaou
Under plastic flow, multi-element high/medium-entropy alloys (HEAs/MEAs) commonly exhibit complex intermittent and collective dislocation dynamics owing to inherent lattice distort…
Dislocation plasticity in equiatomic NiCoCr alloys: The effect of short-range order
Amir H. Naghdi, Kamran Karimi, Axel E. Poisvert +5
Equiatomic NiCoCr solid solutions have been recently shown to display exceptional mechanical properties, that have been suggested to be linked to nanostructural short-range order (…
Edge dislocations in multi-component solid solution alloys: Beyond traditional elastic depinning
A. Esfandiarpour, S. Papanikolaou, M. Alava
High-entropy alloys (HEA) form solid solutions with large chemical disorder and excellent mechanical properties. We investigate the origin of HEA strengthening in face-centered cub…
Shear banding instability in \remove{high entropy} multi-component metallic glasses: Interplay of composition and short-range order}
Kamran Karimi, Amin Esfandiarpour, Rene Alvarez-Donado1 +2
The shear-banding instability in quasi-statically driven bulk metallic glasses emerges from collective dynamics, mediated by shear transformation zones and associated non-local ela…
Nanoindentation of single crystalline Mo: Atomistic defect nucleation and thermomechanical stability
F. J. Domínguez-Gutiérrez, S. Papanikolaou, A. Esfandiarpour +2
The mechanical responses of single crystalline Body-Centered Cubic (BCC) metals, such as molybdenum (Mo), outperform other metals at high temperatures, so much so that they are con…