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Modeling the precipitation processes and the formation of hierarchical microstructures in a single crystal high entropy superalloy

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierDepartment of Materials Science and Engineering
dc.contributor.authorGORSSE, Stéphane
hal.structure.identifierDepartment of Materials Science and Engineering
hal.structure.identifierHigh Entropy Materials Center
dc.contributor.authorCHEN, Yung-Ta
hal.structure.identifierDepartment of Materials Science and Engineering
hal.structure.identifierHigh Entropy Materials Center
dc.contributor.authorHSU, Wei-Che
hal.structure.identifierResearch Center for Structural Materials
hal.structure.identifierDepartment of Nanoscience and Nanoengineering
dc.contributor.authorMURAKAMI, Hideyuki
hal.structure.identifierDepartment of Materials Science and Engineering
hal.structure.identifierHigh Entropy Materials Center
dc.contributor.authorYEH, An-Chou
dc.date.issued2021-03
dc.identifier.issn1359-6462
dc.description.abstractEnAlthough superior high temperature tensile yield strength of high entropy superalloys (HESAs) arises from their hierarchical microstructure, the precipitation processes driving its formation remains unclear. In the present study, we analyze the kinetics of γ’ and γ precipitations by treating the concurrent nucleation, growth and coarsening using common computational thermodynamic and kinetic tools to simulate the microstructure genesis and evolution in HESA during thermal treatments. The ability of the simulations to reproduce the experimentally observed microstructure parameters is evaluated. Temperature-time-transformation (TTT) diagrams are calculated to serve as guidelines for further optimization of the hierarchical microstructure of HESAs.
dc.language.isoen
dc.publisherElsevier
dc.title.enModeling the precipitation processes and the formation of hierarchical microstructures in a single crystal high entropy superalloy
dc.typeArticle de revue
dc.identifier.doi10.1016/j.scriptamat.2020.11.002
dc.subject.halChimie/Matériaux
bordeaux.journalScripta Materialia
bordeaux.page147-152
bordeaux.volume193
bordeaux.peerReviewedoui
hal.identifierhal-03010103
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03010103v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scripta%20Materialia&rft.date=2021-03&rft.volume=193&rft.spage=147-152&rft.epage=147-152&rft.eissn=1359-6462&rft.issn=1359-6462&rft.au=GORSSE,%20St%C3%A9phane&CHEN,%20Yung-Ta&HSU,%20Wei-Che&MURAKAMI,%20Hideyuki&YEH,%20An-Chou&rft.genre=article


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