High-entropy alloy strengthened by in situ formation of entropy-stabilized nano-dispersoids

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dc.contributor.authorGwalani, Bharatko
dc.contributor.authorPohan, Rizaldy M.ko
dc.contributor.authorLee, Junhoko
dc.contributor.authorLee, Binko
dc.contributor.authorBanerjee, Rajarshiko
dc.contributor.authorRyu, Ho Jinko
dc.contributor.authorHong, Soon Hyungko
dc.date.accessioned2018-10-19T00:49:07Z-
dc.date.available2018-10-19T00:49:07Z-
dc.date.created2018-10-08-
dc.date.created2018-10-08-
dc.date.created2018-10-08-
dc.date.created2018-10-08-
dc.date.issued2018-09-
dc.identifier.citationSCIENTIFIC REPORTS, v.8-
dc.identifier.issn2045-2322-
dc.identifier.urihttp://hdl.handle.net/10203/246156-
dc.description.abstractA significant increase in compressive yield strength of the Al0.3CoCrFeMnNi high-entropy alloy (HEA) from 979 MPa to 1759 MPa was observed upon the introduction of 3 vol.%Y2O3. The HEAs were processed using spark plasma sintering of mechanically alloyed powders. Transmission electron microscopy and atom probe tomography confirmed the presence of compositionally complex nano-dispersoids in theY(2)O(3)-added HEA. The significant increase in strength can be attributed to the nano-dispersoid strengthening coupled with grain refinement. Therefore, the in-situ formation of the compositionally complex nanosca le dispersoids during the alloy processing could be a novel approach to create entropy-stabilized oxide particles in strengthening of HEAs.-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.subjectMECHANICAL-PROPERTIES-
dc.subjectTHERMAL-STABILITY-
dc.subjectFERRITIC ALLOYS-
dc.subjectPHASE-STABILITY-
dc.subjectSINGLE-PHASE-
dc.subjectHALL-PETCH-
dc.subjectOXIDE-
dc.subjectMICROSTRUCTURE-
dc.subjectEVOLUTION-
dc.subjectAL0.3CUFECRNI2-
dc.titleHigh-entropy alloy strengthened by in situ formation of entropy-stabilized nano-dispersoids-
dc.typeArticle-
dc.identifier.wosid000445079400006-
dc.identifier.scopusid2-s2.0-85053662614-
dc.type.rimsART-
dc.citation.volume8-
dc.citation.publicationnameSCIENTIFIC REPORTS-
dc.identifier.doi10.1038/s41598-018-32552-6-
dc.contributor.localauthorRyu, Ho Jin-
dc.contributor.localauthorHong, Soon Hyung-
dc.contributor.nonIdAuthorGwalani, Bharat-
dc.contributor.nonIdAuthorPohan, Rizaldy M.-
dc.contributor.nonIdAuthorBanerjee, Rajarshi-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusMECHANICAL-PROPERTIES-
dc.subject.keywordPlusTHERMAL-STABILITY-
dc.subject.keywordPlusFERRITIC ALLOYS-
dc.subject.keywordPlusPHASE-STABILITY-
dc.subject.keywordPlusSINGLE-PHASE-
dc.subject.keywordPlusHALL-PETCH-
dc.subject.keywordPlusOXIDE-
dc.subject.keywordPlusMICROSTRUCTURE-
dc.subject.keywordPlusEVOLUTION-
dc.subject.keywordPlusAL0.3CUFECRNI2-
dc.subject.keywordPlusMECHANICAL-PROPERTIES-
dc.subject.keywordPlusTHERMAL-STABILITY-
dc.subject.keywordPlusFERRITIC ALLOYS-
dc.subject.keywordPlusPHASE-STABILITY-
dc.subject.keywordPlusSINGLE-PHASE-
dc.subject.keywordPlusHALL-PETCH-
dc.subject.keywordPlusOXIDE-
dc.subject.keywordPlusMICROSTRUCTURE-
dc.subject.keywordPlusEVOLUTION-
dc.subject.keywordPlusAL0.3CUFECRNI2-
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