Stability of ordered L1(2) and B-2 precipitates in face centered cubic based high entropy alloys - Al0.3CoFeCrNi and Al0.3CuFeCrNi2

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dc.contributor.authorGwalani, Bko
dc.contributor.authorSoni, Vko
dc.contributor.authorChoudhuri, Dko
dc.contributor.authorLee, Mko
dc.contributor.authorHwang, JYko
dc.contributor.authorNam, SJko
dc.contributor.authorRyu, Ho Jinko
dc.contributor.authorHong, Soon Hyungko
dc.contributor.authorBanerjee, Rko
dc.date.accessioned2016-10-07T09:26:10Z-
dc.date.available2016-10-07T09:26:10Z-
dc.date.created2016-06-28-
dc.date.created2016-06-28-
dc.date.issued2016-10-
dc.identifier.citationSCRIPTA MATERIALIA, v.123, pp.130 - 134-
dc.identifier.issn1359-6462-
dc.identifier.urihttp://hdl.handle.net/10203/213206-
dc.description.abstractAdding a small amount of Al to the well-known high entropy alloy (HEA), Al0.1CoCrFeNi, to form Al0.3CoCrFeNi, leads to the precipitation of highly refined ordered L1(2) precipitates, which are stable at 550 C. However, the L12 precipitates (stoichiometry of (Ni,Cr)(3)(Al,Fe,Co)) are de-stabilized and replaced by coarser B2 precipitates on annealing at 700 C. Contrastingly, in the Co-free, Al0.3CuCrFeNi2 high entropy alloy, the L1(2) precipitates are stable at both 550 degrees C (similar to 5 nm) and 700 degrees C (similar to 50 nm), and exhibit a stoichiometry of (NLCu)(3)(ALFe,Cr). These results lead to interesting insights into the stability of ordered phases in HEAs as a function of composition and temperature. (C) 2016 Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectMICROSTRUCTURE-
dc.subjectSUPERALLOYS-
dc.titleStability of ordered L1(2) and B-2 precipitates in face centered cubic based high entropy alloys - Al0.3CoFeCrNi and Al0.3CuFeCrNi2-
dc.typeArticle-
dc.identifier.wosid000381538300031-
dc.identifier.scopusid2-s2.0-84976276936-
dc.type.rimsART-
dc.citation.volume123-
dc.citation.beginningpage130-
dc.citation.endingpage134-
dc.citation.publicationnameSCRIPTA MATERIALIA-
dc.identifier.doi10.1016/j.scriptamat.2016.06.019-
dc.contributor.localauthorRyu, Ho Jin-
dc.contributor.localauthorHong, Soon Hyung-
dc.contributor.nonIdAuthorGwalani, B-
dc.contributor.nonIdAuthorSoni, V-
dc.contributor.nonIdAuthorChoudhuri, D-
dc.contributor.nonIdAuthorLee, M-
dc.contributor.nonIdAuthorHwang, JY-
dc.contributor.nonIdAuthorNam, SJ-
dc.contributor.nonIdAuthorBanerjee, R-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorHigh entropy alloys-
dc.subject.keywordAuthorSolute partitioning-
dc.subject.keywordAuthorAtom probe tomography-
dc.subject.keywordAuthorL1(2)-
dc.subject.keywordPlusMICROSTRUCTURE-
dc.subject.keywordPlusSUPERALLOYS-
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