Effect of nickel on the structure and phase composition of the VCrMnFeCoNix high-entropy alloy
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Date
2015
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Springer-Verlag
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Abstract
Вплив концентрації нікелю на фазовий склад, мікроструктуру і твердість
досліджено високоентропійні сплави VCrMnFeCoNix (x = 0–3). Будова литої системи має
складається з ГЦК твердого розчину та σ-фази, і обидві фази є багатокомпонентними. Це було знайдено
що збільшення концентрації нікелю зменшує об’ємну частку σ-фази. Як результат
зменшення кількості твердої σ-фази виявлено зменшення мікротвердості сплавів
від 12 ГПа при x = 0 до 4,1 ГПа при x =3.
The effect of the nickel concentration on the phase composition, microstructure, and hardness of VCrMnFeCoNix (x = 0–3) high-entropy alloys has been studied. The structure of the cast system has been composed of fcc solid solution and σ-phase, and both phases are multicomponent. It has been found that an increase of the nickel concentration decreases the volume fraction of the σ-phase. As a result of the reduction of the amount of the solid σ-phase the microhardness of alloys has been detected to decrease from 12 GPa at x = 0 to 4.1 GPa at x =3.
The effect of the nickel concentration on the phase composition, microstructure, and hardness of VCrMnFeCoNix (x = 0–3) high-entropy alloys has been studied. The structure of the cast system has been composed of fcc solid solution and σ-phase, and both phases are multicomponent. It has been found that an increase of the nickel concentration decreases the volume fraction of the σ-phase. As a result of the reduction of the amount of the solid σ-phase the microhardness of alloys has been detected to decrease from 12 GPa at x = 0 to 4.1 GPa at x =3.
Keywords
сігма фаза, sigma phase, кристалічна структура, crystal structure, мікротвердість, microhardness
Citation
Effect of nickel on the structure and phase composition of the VCrMnFeCoNi x high-entropy alloy / M. V. Karpets’ et al. // Journal of Superhard Materials. 2015. Vol. 37, No. 3. P. 182–188. DOI: 10.3103/S1063457615030053