Print Email Facebook Twitter Engineering atomic-level complexity in high-entropy and complex concentrated alloys Title Engineering atomic-level complexity in high-entropy and complex concentrated alloys Author Oh, Hyun Seok (Seoul National University) Sang Jun, Kim (Seoul National University) Odbadrakh, Khorgolkhuu (Oak Ridge National Laboratory; University of Tennessee; National University of Mongolia) Ryu, Wook Ha (Seoul National University) Yoon, Kook Noh (Seoul National University) Mu, Sai (Oak Ridge National Laboratory) Körmann, F.H.W. (TU Delft (OLD) MSE-7; Max-Planck-Institut für Eisenforschung) Ikeda, Yuji (Max-Planck-Institut für Eisenforschung) Tasan, Cemal Cem (Massachusetts Institute of Technology) Raabe, Dierk (Max-Planck-Institut für Eisenforschung) Egami, Takeshi (Oak Ridge National Laboratory; University of Tennessee) Park, Eun Soo (Seoul National University) Date 2019 Abstract Quantitative and well-targeted design of modern alloys is extremely challenging due to their immense compositional space. When considering only 50 elements for compositional blending the number of possible alloys is practically infinite, as is the associated unexplored property realm. In this paper, we present a simple property-targeted quantitative design approach for atomic-level complexity in complex concentrated and high-entropy alloys, based on quantum-mechanically derived atomic-level pressure approximation. It allows identification of the best suited element mix for high solid-solution strengthening using the simple electronegativity difference among the constituent elements. This approach can be used for designing alloys with customized properties, such as a simple binary NiV solid solution whose yield strength exceeds that of the Cantor high-entropy alloy by nearly a factor of two. This study provides general design rules that enable effective utilization of atomic level information to reduce the immense degrees of freedom in compositional space without sacrificing physics-related plausibility. To reference this document use: http://resolver.tudelft.nl/uuid:852d0196-89ec-4605-84f1-6d3dd813224b DOI https://doi.org/10.1038/s41467-019-10012-7 ISSN 2041-1723 Source Nature Communications, 10 (1) Part of collection Institutional Repository Document type journal article Rights © 2019 Hyun Seok Oh, Kim Sang Jun, Khorgolkhuu Odbadrakh, Wook Ha Ryu, Kook Noh Yoon, Sai Mu, F.H.W. Körmann, Yuji Ikeda, Cemal Cem Tasan, Dierk Raabe, Takeshi Egami, Eun Soo Park Files PDF s41467_019_10012_7.pdf 1.56 MB Close viewer /islandora/object/uuid:852d0196-89ec-4605-84f1-6d3dd813224b/datastream/OBJ/view