39 citations · 43 across the 4 of their papers we have counts for
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Energy-composition relations in Ni(AlX) phases
Nikolai A. Zarkevich, Timothy M. Smith, John W. Lawson
The secondary phase, such as NiAl-based , is crucially important for precipitation strengthening of superalloys. Composition-structure-property relations provi…
Energy landscape in NiCoCr-based middle-entropy alloys
Nikolai A. Zarkevich, Timothy M. Smith, John W. Lawson
NiCoCr middle-entropy alloy is known for its exceptional strength at both low and elevated operating temperatures. Mechanical properties of NiCoCr-based alloys are affected by cert…
Fifth-degree elastic potential for predictive stress-strain relations and elastic instabilities under large strain and complex loading in Si
Hao Chen, Nikolai A. Zarkevich, Valery I. Levitas +2
Materials under complex loading develop large strains and often transition via an elastic instability, as observed in both simple and complex systems. Here, we present Si I under l…
Deformation, lattice instability, and metallization during solid-solid structural transformations under general applied stress tensor: example of Si I -> Si II
Nikolai A. Zarkevich, Hao Chen, Valery I. Levitas +1
Density functional theory (DFT) was employed to study the stress-strain behavior, elastic instabilities, and metallization during a solid-solid phase transformation (PT) between se…
FeRh groundstate and martensitic transformation
Nikolai A. Zarkevich, Duane D. Johnson
Cubic B2 FeRh exhibits a metamagnetic transition [(111) antiferromagnet (AFM) to ferromagnet (FM)] around 353 K and remains structurally stable at higher temperatures. However, the…
Qualitative model of high- superconductivity
Nikolai A. Zarkevich
We suggest a qualitative model of a high- superconductor, based on considerations of thermodynamics of phase transitions. As an example, we consider the Mott transition and cl…