SwePub - sökning: WFRF:(Kostiuchenko Tatiana)

Numrering	Referens	Omslagsbild	Hitta
1.	Kostiuchenko, Tatiana, et al. (författare) Short-range order in face-centered cubic VCoNi alloys 2020 Ingår i: Physical Review Materials. - : American Physical Society. - 2475-9953. ; 4:11 Tidskriftsartikel (refereegranskat)abstract Concentrated solid solutions including the class of high entropy alloys (HEAs) have attracted enormous attention recently. Among these alloys a recently developed face-centered cubic (fcc) equiatomic VCoNi alloy revealed extraordinary high yield strength, exceeding previous high-strength fcc CrCoNi and FeCoNiCrMn alloys. Significant lattice distortions had been reported in the VCoNi solid solution. There is, however, a lack of knowledge about potential short-range order (SRO) and its implications for most of these alloys. We performed first-principles calculations and Monte Carlo simulations to compute the degree of SRO for fcc VCoNi, namely, by utilizing the coherent-potential approximation in combination with the generalized perturbation method as well as the supercell method in combination with recently developed machine-learned potentials. We analyze the chemical SRO parameters as well as the impact on other properties such as relaxation energies and lattice distortions.

Kostiuchenko, Tatiana, et al. (författare)
Short-range order in face-centered cubic VCoNi alloys
2020
Ingår i: Physical Review Materials. - : American Physical Society. - 2475-9953. ; 4:11
Tidskriftsartikel (refereegranskat)abstract
- Concentrated solid solutions including the class of high entropy alloys (HEAs) have attracted enormous attention recently. Among these alloys a recently developed face-centered cubic (fcc) equiatomic VCoNi alloy revealed extraordinary high yield strength, exceeding previous high-strength fcc CrCoNi and FeCoNiCrMn alloys. Significant lattice distortions had been reported in the VCoNi solid solution. There is, however, a lack of knowledge about potential short-range order (SRO) and its implications for most of these alloys. We performed first-principles calculations and Monte Carlo simulations to compute the degree of SRO for fcc VCoNi, namely, by utilizing the coherent-potential approximation in combination with the generalized perturbation method as well as the supercell method in combination with recently developed machine-learned potentials. We analyze the chemical SRO parameters as well as the impact on other properties such as relaxation energies and lattice distortions.

Träfflista för sökning "WFRF:(Kostiuchenko Tatiana) "