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dc.contributor.authorKim, BH-
dc.contributor.authorDo, J-
dc.contributor.authorLee, S-
dc.contributor.authorPark, I-
dc.date.accessioned2016-04-01T02:57:34Z-
dc.date.available2016-04-01T02:57:34Z-
dc.date.created2010-05-04-
dc.date.issued2009-12-
dc.identifier.issn1738-8228-
dc.identifier.other2010-OAK-0000021038-
dc.identifier.urihttps://oasis.postech.ac.kr/handle/2014.oak/26048-
dc.description.abstractA study was made of the effects of a Sn addition on the microstructure and microfracture mechanism of squeeze cast AZ51-xSn magnesium alloys. Microstructural observation, in situ fracture testing, and fractographic observations were conducted on these alloys to clarify the microfracture process. The microstructural analyses indicated that Mg2Sn particles as well as Mg17Al12 particles precipitated mainly along the solidification cell boundaries; the volume fraction of these hard particles increased as the amount of added Sn increased, with increased the strength. From in situ fracture observations of the AZ51-7Sn alloy, coarse precipitates located on the cell boundaries worked as easy crack propagation sites and caused abrupt intercellular fracturing. On the other hand, the overall fracture properties of the AZ51-3Sn alloy improved because crack propagation proceeded into the Mg matrix rather than into the cell boundaries as twins developed actively, as confirmed by an R-curve analysis. These findings suggest that the addition of 3 similar to 5 wt.% Sn is effective in improving both the tensile and fracture properties on the basis of well-developed twins, the blocking of crack propagation, and crack blunting.-
dc.description.statementofresponsibilityX-
dc.languageKorean-
dc.publisherKOREAN INST METALS MATERIALS-
dc.relation.isPartOfJOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS-
dc.subjectmagnesium alloy-
dc.subjectfracture toughness-
dc.subjectmicrofracture mechanism-
dc.subjecttwin-
dc.subjectR-curve-
dc.subjectTENSILE PROPERTIES-
dc.subjectMICROSTRUCTURE-
dc.subjectCOMPOSITES-
dc.subjectTOUGHNESS-
dc.titleMicrofracture Mechanism of Squeeze Cast AZ51-xSn Magnesium Alloys-
dc.typeArticle-
dc.contributor.college신소재공학과-
dc.author.googleKim, BH-
dc.author.googleDo, J-
dc.author.googleLee, S-
dc.author.googlePark, I-
dc.relation.volume47-
dc.relation.issue12-
dc.relation.startpage797-
dc.relation.lastpage810-
dc.contributor.id10052220-
dc.relation.journalJOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS-
dc.relation.indexSCI급, SCOPUS 등재논문-
dc.relation.sciSCIE-
dc.collections.nameJournal Papers-
dc.type.rimsART-
dc.identifier.bibliographicCitationJOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, v.47, no.12, pp.797 - 810-
dc.identifier.wosid000273132000002-
dc.date.tcdate2019-02-01-
dc.citation.endPage810-
dc.citation.number12-
dc.citation.startPage797-
dc.citation.titleJOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS-
dc.citation.volume47-
dc.contributor.affiliatedAuthorLee, S-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.wostc2-
dc.type.docTypeArticle-
dc.subject.keywordPlusTENSILE PROPERTIES-
dc.subject.keywordPlusMICROSTRUCTURE-
dc.subject.keywordPlusCOMPOSITES-
dc.subject.keywordPlusTOUGHNESS-
dc.subject.keywordAuthormagnesium alloy-
dc.subject.keywordAuthorfracture toughness-
dc.subject.keywordAuthormicrofracture mechanism-
dc.subject.keywordAuthortwin-
dc.subject.keywordAuthorR-curve-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryMetallurgy & Metallurgical Engineering-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.description.journalRegisteredClasskci-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaMetallurgy & Metallurgical Engineering-

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이성학LEE, SUNG HAK
Dept of Materials Science & Enginrg
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