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Cited 58 time in webofscience Cited 70 time in scopus
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dc.contributor.authorSeung Youb Hanko
dc.contributor.authorSang Yong Shinko
dc.contributor.authorLee, Sko
dc.contributor.authorKim, NJko
dc.contributor.authorJin-ho Baeko
dc.contributor.authorKisoo Kimko
dc.date.available2016-04-01T02:55:58Z-
dc.date.created2011-03-24-
dc.date.issued2010-02-
dc.identifier.citationMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v.41A, no.2, pp.329 - 340-
dc.identifier.issn1073-5623-
dc.identifier.other2010-OAK-0000021113-
dc.identifier.urihttp://oasis.postech.ac.kr/handle/2014.oak/26005-
dc.description.abstractIn this study, four API X80 linepipe steel specimens were fabricated by varying the cooling rate and finish cooling temperature, and their microstructures and crystallographic orientations were analyzed to investigate the effects of the cooling conditions on the tensile and Charpy impact properties. All the specimens consisted of acicular ferrite (AF), granular bainite (GB), and martensite-austenite (MA) constituents. The volume fraction of MA increased with an increasing cooling rate, and the volume fraction and size of MA tended to decrease with an increasing finish cooling temperature. According to the crystallographic orientation analysis data, the effective grain size and unit crack path decreased as fine ACs having a large amount of high-angle grain boundaries were homogeneously formed, thereby leading to the improvement in the Charpy impact properties. The specimen fabricated with the higher cooling rate and lower finish cooling temperature had the highest upper-shelf energy (USE) and the lowest energy transition temperature (ETT), because it contained a large amount of MA homogeneously distributed inside fine AFs, while its tensile properties remained excellent.-
dc.description.statementofresponsibilityX-
dc.languageEnglish-
dc.publisherSPRINGER-
dc.titleEffects of Cooling Conditions on Tensile and Charpy Impact Properties of API X80 Linepipe Steels-
dc.typeArticle-
dc.contributor.college신소재공학과-
dc.identifier.doi10.1007/S11661-009-0135-4-
dc.author.googleHan, SY-
dc.author.googleShin, SY-
dc.author.googleLee, S-
dc.author.googleKim, NJ-
dc.author.googleBae, JH-
dc.author.googleKim, K-
dc.relation.volume41A-
dc.relation.issue2-
dc.relation.startpage329-
dc.relation.lastpage340-
dc.contributor.id10052220-
dc.publisher.locationUS-
dc.relation.journalMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE-
dc.relation.indexSCI급, SCOPUS 등재논문-
dc.relation.sciSCI-
dc.collections.nameJournal Papers-
dc.type.rimsART-
dc.contributor.localauthorLee, S-
dc.contributor.localauthorKim, NJ-
dc.contributor.nonIdAuthorSeung Youb Han-
dc.contributor.nonIdAuthorJin-ho Bae-
dc.contributor.nonIdAuthorKisoo Kim-
dc.identifier.wosid000273242700007-
dc.date.tcdate2019-02-01-
dc.citation.endPage340-
dc.citation.number2-
dc.citation.startPage329-
dc.citation.titleMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE-
dc.citation.volume41A-
dc.identifier.localId0000021113-
dc.identifier.localId0000023006-
dc.identifier.scopusid2-s2.0-77949264828-
dc.description.journalClass1-
dc.description.wostc50-
dc.description.scptc56*
dc.date.scptcdate2018-05-121*

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 LEE, SUNG HAK
Dept of Materials Science & Enginrg
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