DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, YG | - |
dc.contributor.author | Hwang, B | - |
dc.contributor.author | Lee, S | - |
dc.contributor.author | Kim, WG | - |
dc.contributor.author | Shin, DH | - |
dc.date.accessioned | 2015-06-25T02:42:55Z | - |
dc.date.available | 2015-06-25T02:42:55Z | - |
dc.date.created | 2009-08-24 | - |
dc.date.issued | 2005-11 | - |
dc.identifier.issn | 1073-5623 | - |
dc.identifier.other | 2015-OAK-0000005468 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/11494 | - |
dc.description.abstract | In the present study, ultrafine-grained microstructures of a conventional 5083 aluminum alloy were fabricated by equal-channel angular pressing, and their dynamic deformation and fracture behavior were investigated. Dynamic torsional tests were conducted on four aluminum alloy specimens using a torsional Kolsky bar, and then the test data were analyzed in relation to microstructures, tensile properties, and adiabatic shear-banding behavior. The equal-channel angular-pressed (ECAP) specimens consisted of ultrafine grains and contained a considerable amount of second-phase particles, which were refined and distributed homogeneously in the matrix as the equal-channel angular pressing pass number increased. The dynamic torsional test results indicated that the maximum shear stress increased, while the fracture shear strain remained constant, with increasing equal-channel angular pressing pass number. Observation of the deformed area beneath the dynamically fractured surface showed that a number of voids initiated mainly at second-phase particle/matrix interfaces and that the number of voids increased with increasing pass number. Adiabatic shear bands of 200 to <300 mu m in width were formed in the as-extruded and 1-pass ECAP specimens having coarser particles, whereas they were hardly formed in the four-pass and eight-pass ECAP specimens having finer particles. The possibility of adiabatic shear-band formation was explained by concepts of absorbed deformation energy and void initiation. | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | MINERALS METALS MATERIALS SOC | - |
dc.relation.isPartOf | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | Dynamic deformation and fracture behavior of ultrafine-grained aluminum alloy fabricates by equal-channel angular pressing | - |
dc.type | Article | - |
dc.contributor.college | 신소재공학과 | en_US |
dc.identifier.doi | 10.1007/s11661-005-0068-5 | - |
dc.author.google | Kim, YG | en_US |
dc.author.google | Hwang, B | en_US |
dc.author.google | Shin, DH | en_US |
dc.author.google | Kim, WG | en_US |
dc.author.google | Lee, S | en_US |
dc.relation.volume | 36A | en_US |
dc.relation.issue | 11 | en_US |
dc.relation.startpage | 2947 | en_US |
dc.relation.lastpage | 2955 | en_US |
dc.contributor.id | 10052220 | en_US |
dc.relation.journal | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | en_US |
dc.relation.index | SCI급, SCOPUS 등재논문 | en_US |
dc.relation.sci | SCI | en_US |
dc.collections.name | Journal Papers | en_US |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v.36A, no.11, pp.2947 - 2955 | - |
dc.identifier.wosid | 000232678100008 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 2955 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 2947 | - |
dc.citation.title | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | - |
dc.citation.volume | 36A | - |
dc.contributor.affiliatedAuthor | Lee, S | - |
dc.identifier.scopusid | 2-s2.0-28444483149 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 6 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | SEVERE PLASTIC-DEFORMATION | - |
dc.subject.keywordPlus | ADIABATIC SHEAR BANDS | - |
dc.subject.keywordPlus | LOW-CARBON STEEL | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | MICROSTRUCTURAL EVOLUTION | - |
dc.subject.keywordPlus | TORSIONAL DEFORMATION | - |
dc.subject.keywordPlus | LITHIUM ALLOYS | - |
dc.subject.keywordPlus | NANOCRYSTALLINE | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | CRYSTALLINE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
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