281 citations · 706 across the 25 of their papers we have counts for
26 papers
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…
Tuning brittleness in multi-component metallic glasses through chemical disorder aging
Kamran Karimi, Stefanos Papanikolaou
Shear localization in slowly-driven bulk metallic glasses (BMGs) is typically accompanied by a sharp drop in the bulk stress response as a signature of the plastic yielding transit…
Multiscale modeling of kinetic sluggishness in equiatomic NiCoCr and NiCoCrFeMn single-phase solid solutions
Kamran Karimi, Stefanos Papanikolaou
Complex, concentrated, multi-component alloys have been shown to display outstanding thermo-mechanical properties, that have been typically attributed to sluggish diffusion, entrop…
Prediction of steel nanohardness by using graph neural networks on surface polycrystallinity maps
Kamran Karimi, Henri Salmenjoki, Katarzyna Mulewska +4
As a bulk mechanical property, nanoscale hardness in polycrystalline metals is strongly dependent on microstructural features that are believed to be heavily influenced from comple…
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 (…
Yielding in multi-component metallic glasses: Universal signatures of elastic modulus heterogeneities
Kamran Karimi, Mikko J. Alava, Stefanos Papanikolaou
Sheared multi-component bulk metallic glasses are characterized by both chemical and structural disorder that define their properties. We investigate the behavior of the local, mic…