Designing high entropy superalloys for elevated temperature application
CHEN, Yung-Ta
Department of Materials Science and Engineering
National Institute for Materials Science [NIMS]
Department of Materials Science and Engineering
National Institute for Materials Science [NIMS]
MURAKAMI, Hideyuki
National Institute for Materials Science [NIMS]
Department of Nanoscience and Nanoengineering
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National Institute for Materials Science [NIMS]
Department of Nanoscience and Nanoengineering
CHEN, Yung-Ta
Department of Materials Science and Engineering
National Institute for Materials Science [NIMS]
Department of Materials Science and Engineering
National Institute for Materials Science [NIMS]
MURAKAMI, Hideyuki
National Institute for Materials Science [NIMS]
Department of Nanoscience and Nanoengineering
National Institute for Materials Science [NIMS]
Department of Nanoscience and Nanoengineering
GORSSE, Stéphane
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Materials Science and Engineering
< Reduce
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Materials Science and Engineering
Language
en
Article de revue
This item was published in
Scripta Materialia. 2020-10, vol. 187, p. 177-182
Elsevier
English Abstract
In the context of cast alloy development for high temperature applications, high entropy superalloys (HESA) have exhibited superior cost specific tensile strength than that of superalloys such as CM247LC. Compositions of ...Read more >
In the context of cast alloy development for high temperature applications, high entropy superalloys (HESA) have exhibited superior cost specific tensile strength than that of superalloys such as CM247LC. Compositions of HESA are distinctively different from those of cast superalloys with higher contents of Fe and Ti, making HESA cheaper and lighter. Comparing to superalloys, although HESA has adopted the template of FCC-structured (γ) matrix and coherent L12-structured (γ′) precipitates, γ′ is enriched with solutes with higher intrinsic strength, rendering positive lattice misfit, and the high entropy γ matrix may have attributed to a good combination of strength and ductility.Read less <
Origin
Hal imported