Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신동혁 | - |
dc.date.accessioned | 2019-05-20T06:08:56Z | - |
dc.date.available | 2019-05-20T06:08:56Z | - |
dc.date.issued | 2008-09 | - |
dc.identifier.citation | 대한금속·재료학회지, v. 46, No. 9, Page. 545-554 | en_US |
dc.identifier.issn | 1738-8228 | - |
dc.identifier.uri | http://kiss.kstudy.com/thesis/thesis-view.asp?key=2724123 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/104861 | - |
dc.description.abstract | Dynamic deformation behavior of ultra-fine-grained pure coppers fabricated by equal channel angular pressing (ECAP) was investigated in this study. Dynamic torsional tests were conducted on four copper specimens using a torsional Kolsky bar, and then the test data were analyzed by their microstructures and tensile properties. The 1-pass ECAP`ed specimen consisted of fine dislocation cell structures elongated along the ECAP direction, which were changed to very fine, equiaxed subgrains of 300~400 nm in size as the pass number increased. The dynamic torsional test results indicated that maximum shear stress increased with increasing ECAP pass number. Adiabatic shear bands were not found at the gage center of the dynamically deformed torsional specimen of the 1- or 4-pass ECAP`ed specimen, while some weak bands were observed in the 8-pass ECAP`ed specimen. These findings suggested that the grain refinement according to the ECAP was very effective in strengthening of pure coppers, and that ECAP`ed coppers could be used without serious reduction in fracture resistance under dynamic torsional loading as adiabatic shear bands were hardly formed. | en_US |
dc.language.iso | ko_KR | en_US |
dc.publisher | 대한금속재료학회 | en_US |
dc.subject | Dynamic torsional test | en_US |
dc.subject | ultra-fine-grained oxygen-free copper | en_US |
dc.subject | equal channel angular pressing | en_US |
dc.subject | ECAP | en_US |
dc.title | Dynamic Deformation Behavior of Ultra-Fine-Grained Pure Coppers Fabricated by Equal Channel Angular Pressing | en_US |
dc.title.alternative | ECAP으로 제조된 초미세립 순동의 동적 변형거동 | en_US |
dc.type | Article | en_US |
dc.relation.journal | 대한금속·재료학회지 | - |
dc.contributor.googleauthor | Kim, Yang Gon | - |
dc.contributor.googleauthor | Hwang, Byoung Chul | - |
dc.contributor.googleauthor | Lee, Sung Hak | - |
dc.contributor.googleauthor | Lee, Chul Won | - |
dc.contributor.googleauthor | Shin, Dong Hyuk | - |
dc.relation.code | 2012100286 | - |
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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