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Keywords = gamma double prime nanoparticles

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7 pages, 1291 KiB  
Article
Elemental Phase Partitioning in the γ-γ″ Ni2CoFeCrNb0.15 High Entropy Alloy
by Bin Han, Jie Wei, Feng He, Da Chen, Zhi Jun Wang, Alice Hu, Wenzhong Zhou and Ji Jung Kai
Entropy 2018, 20(12), 910; https://doi.org/10.3390/e20120910 - 28 Nov 2018
Cited by 12 | Viewed by 4127
Abstract
The partitioning of the alloying elements into the γ″ nanoparticles in a Ni2CoFeCrNb0.15 high entropy alloy was studied by the combination of atom probe tomography and first-principles calculations. The atom probe tomography results show that the Co, Fe, and Cr [...] Read more.
The partitioning of the alloying elements into the γ″ nanoparticles in a Ni2CoFeCrNb0.15 high entropy alloy was studied by the combination of atom probe tomography and first-principles calculations. The atom probe tomography results show that the Co, Fe, and Cr atoms incorporated into the Ni3Nb-type γ″ nanoparticles but their partitioning behaviors are significantly different. The Co element is much easier to partition into the γ″ nanoparticles than Fe and Cr elements. The first-principles calculations demonstrated that the different partitioning behaviors of Co, Fe and Cr elements into the γ″ nanoparticles resulted from the differences of their specific chemical potentials and bonding states in the γ″ phase. Full article
(This article belongs to the Special Issue New Advances in High-Entropy Alloys)
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