Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신동혁 | - |
dc.date.accessioned | 2019-06-10T00:52:02Z | - |
dc.date.available | 2019-06-10T00:52:02Z | - |
dc.date.issued | 2007-03 | - |
dc.identifier.citation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v. 449, Page. 756-760 | en_US |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0921509306017138 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/106318 | - |
dc.description.abstract | In this study, superplastic deformation behavior of ultra-fine-grained (UFG) 5083 Al alloy was investigated in the context of inelastic deformation theory. By imposing an effective strain of 8 via equal-channel angular pressings, most of the grains were significantly refined to 0.3 mu m with non-equilibrium boundaries. A series of tension and load-relaxation tests was carried out to measure elongations and to obtain flow curves of UFG alloy at strain rates of 10(-4) to 10(-2) s(-1) and at temperatures of 498-548 K corresponding to 0.58-0.65 T-m. The UFG alloy exhibited much higher elongations than the coarse grain alloy at the same temperatures and strain rates, indicating that low-temperature superplasticity was achieved by UFG alloy in spite of its non-equilibrium grain boundaries. Quantitative analysis on deformation mechanisms of UFG alloy was made and compared with those of coarse grain alloy. (c) 2006 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | This works was supported by the National Research Laboratory Program of the Korea Ministry of Science and Technology and the Brain Korea 21 Project in 2003. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | 5083 Al alloy | en_US |
dc.subject | ultra-fine grain | en_US |
dc.subject | equal-channel angular pressing | en_US |
dc.subject | superplasticity | en_US |
dc.subject | internal variable model | en_US |
dc.title | Superplastic deformation behavior of ultra-fine-grained 5083 Al alloy using load-relaxation tests | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.msea.2006.02.452 | - |
dc.relation.journal | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.contributor.googleauthor | Ko, Y.G. | - |
dc.contributor.googleauthor | Lee, C.S. | - |
dc.contributor.googleauthor | Shin, D.H. | - |
dc.contributor.googleauthor | Park, K.-T. | - |
dc.relation.code | 2007214148 | - |
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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