首页|(162892)Study on properties of single-phase high entropy alloys with FCC structure based on the empirical electron theory
(162892)Study on properties of single-phase high entropy alloys with FCC structure based on the empirical electron theory
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NSTL
Elsevier
The valence electron structures, thermal properties, hardness and magnetic moments of single-phase high entropy alloys with the face-centered cubic structure have been first investigated with the empirical electron theory of solids and molecules. The theoretical bond lengths agree with the experimental ones well. The calculated melting points of CrFeCoNi, CrMnFeCoNi and CrFeCoNiCu alloys are consistent with their differential thermal analysis (DTA) measured ones. The calculated magnetic moments of ferromagnetic FeCoNi and FeCoNiX_(0.25) (X=A1 or Si) alloys agree with the observed ones well. The physical properties of these alloys are strongly associated with their valence electron structures. It is suggested that the melting point, cohesive energy, hardness and magnetic moments of the face-centered cubic high entropy alloys are mainly modulated by bonding factor/, covalent electrons per atom n_c/atom, covalence electron pair n_A and 3d magnetic electron, respectively.
Valence electron structuresMelting pointsCohesive energyHardnessMagnetic moments
Xinpeng Guo、Yongquan Guo、Linhan Yin
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School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
NSTL
Elsevier
