Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신동혁 | - |
dc.date.accessioned | 2021-02-16T05:26:25Z | - |
dc.date.available | 2021-02-16T05:26:25Z | - |
dc.date.issued | 2001-06 | - |
dc.identifier.citation | MATERIALS TRANSACTIONS, v. 42, issue. 6, page. 1074-1080 | en_US |
dc.identifier.issn | 1347-5320 | - |
dc.identifier.issn | 1345-9678 | - |
dc.identifier.uri | https://www.jstage.jst.go.jp/article/matertrans/42/6/42_6_1074/_article/-char/en | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/158357 | - |
dc.description.abstract | An ultra-fine grained (UFG) structure was introduced in a commercial 5083 Al alloy with an initial grain size of ∼ 200 \\micron using the equal channel angular pressing (ECAP) technique. ECAP was successfully conducted at 473 K on the same sample up to a total of 8 pressings through the die such that the sample was rotated 180° around its longitudinal axis between pressings. The microstructure was reasonably homogeneous after a single pressing and consisted of parallel bands of elongated substructure having an average width of 0.2 \\micron and an average length of 0.8 \\micron. An equiaxed ultra-fine grained structure of ∼ 0.3 \\micron was obtained in the present alloy after 4 pressings. The ultra-fine grains were thermally stable at 523 K . The yield stress of as-received 5083 Al alloy was 129 MPa, whereas it increased to 249 MPa after a single pressing and finally became 290 MPa after 8 pressings, which was superior to that of a conventional 5083-H321 Al alloy. In addition, in this study, the feasibility of low temperature superplasticity of a UFG 5083 Al alloy was examined. It was found that the 5083 Al alloy with a grain size of ∼ 0.3 \\micron exhibited a superplastic-like behavior with elongation to failure in excess of 200% below 523 K. | en_US |
dc.description.sponsorship | This work was supported by the 'National Research Laboratory Program' of Korean Ministry of Science and Technology. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | JAPAN INST METALS & MATERIALS | en_US |
dc.subject | equal channel angular pressing | en_US |
dc.subject | ultra-fine grain structure | en_US |
dc.subject | 5083 aluminum alloy | en_US |
dc.subject | microhardness | en_US |
dc.subject | tensile properties | en_US |
dc.subject | low temperature superplasticity | en_US |
dc.title | Microstructures and Mechanical Properties of Equal Channel Angular Pressed 5083 Al Alloy | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.2320/matertrans.42.1074 | - |
dc.relation.journal | MATERIALS TRANSACTIONS | - |
dc.contributor.googleauthor | Chang, Si-Young | - |
dc.contributor.googleauthor | Lee, Jung Guk | - |
dc.contributor.googleauthor | Park, Kyung-Tae | - |
dc.contributor.googleauthor | Shin, Dong Hyuk | - |
dc.relation.code | 2009206499 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | dhshin | - |
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