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College of Engineering(공과대학)Dept. of Materials Science and Engineering(신소재공학과)MS-Journal Papers(저널논문)

Effect of ruthenium on the precipitation of topologically close packed phases in Ni-based superalloys of 3rd and 4th generation

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dc.contributor.authorMatuszewski, Kko
dc.contributor.authorRetting, Rko
dc.contributor.authorMatysiak, Hko
dc.contributor.authorPeng, Zko
dc.contributor.authorPovstugar, Iko
dc.contributor.authorChoi, Pyuck-Pako
dc.contributor.authorMuller, Jko
dc.contributor.authorRaabe, Dko
dc.contributor.authorSpiecker, Eko
dc.contributor.authorKurzydlowski, KJko
dc.contributor.authorSinger, RFko
dc.date.accessioned2017-01-13T05:10:53Z-
dc.date.available2017-01-13T05:10:53Z-
dc.date.created2016-12-13-
dc.date.created2016-12-13-
dc.date.created2016-12-13-
dc.date.issued2015-08-
dc.identifier.citationACTA MATERIALIA, v.95, pp.274 - 283-
dc.identifier.issn1359-6454-
dc.identifier.urihttp://hdl.handle.net/10203/218782-
dc.description.abstractThe precipitation of topologically close packed (TCP) phases is detrimental for the high temperature strength of high refractory Ni-based superalloys. The beneficial influence of Ru with respect to this so called instability is nowadays well accepted. In the present paper the precipitation of topologically close packed (TCP) phases is studied quantitatively in two experimental alloys (one Ru-free and one with addition of Ru) to clarify the mechanism of the Ru effect. It is confirmed that the TCP phase precipitates undergo sequential phase transformation with the tetragonal sigma-phase precipitating first. Ru retards the phase transformation and leads to decreased equilibrium volume fraction of TCP phases. The results clearly indicate that Ru decreases the driving force for TCP phase precipitation. Investigations of crystallography and chemistry of the TCP/matrix interface point to an additional effect by increase of misfit strain energy. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectSINGLE-CRYSTAL SUPERALLOYS-
dc.subjectRHENIUM-
dc.subjectSTABILITY-
dc.subjectRU-
dc.subject1100-DEGREES-C-
dc.subjectRE-
dc.titleEffect of ruthenium on the precipitation of topologically close packed phases in Ni-based superalloys of 3rd and 4th generation-
dc.typeArticle-
dc.identifier.wosid000358626200030-
dc.identifier.scopusid2-s2.0-84931266119-
dc.type.rimsART-
dc.citation.volume95-
dc.citation.beginningpage274-
dc.citation.endingpage283-
dc.citation.publicationnameACTA MATERIALIA-
dc.identifier.doi10.1016/j.actamat.2015.05.033-
dc.contributor.localauthorChoi, Pyuck-Pa-
dc.contributor.nonIdAuthorMatuszewski, K-
dc.contributor.nonIdAuthorRetting, R-
dc.contributor.nonIdAuthorMatysiak, H-
dc.contributor.nonIdAuthorPeng, Z-
dc.contributor.nonIdAuthorPovstugar, I-
dc.contributor.nonIdAuthorMuller, J-
dc.contributor.nonIdAuthorRaabe, D-
dc.contributor.nonIdAuthorSpiecker, E-
dc.contributor.nonIdAuthorKurzydlowski, KJ-
dc.contributor.nonIdAuthorSinger, RF-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorTopologically close packed (TCP) phases-
dc.subject.keywordAuthorNi-based superalloys-
dc.subject.keywordAuthorPrecipitation-
dc.subject.keywordAuthorRuthenium effect-
dc.subject.keywordAuthorThermodynamics-
dc.subject.keywordPlusSINGLE-CRYSTAL SUPERALLOYS-
dc.subject.keywordPlusRHENIUM-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusRU-
dc.subject.keywordPlus1100-DEGREES-C-
dc.subject.keywordPlusRE-
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