Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Megumi Kawasaki | - |
dc.date.accessioned | 2018-03-26T07:37:58Z | - |
dc.date.available | 2018-03-26T07:37:58Z | - |
dc.date.issued | 2014-12 | - |
dc.identifier.citation | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&, 3(4), p.311-318 | en_US |
dc.identifier.issn | 2238-7854 | - |
dc.identifier.issn | 2214-0697 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S2238785414000490?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/52549 | - |
dc.description.abstract | The processing of metals through the application of high-pressure torsion (HPT) provides the potential for achieving exceptional grain refinement in bulk metals. Numerous reports are now available demonstrating the application of HPT to a range of pure metals and simple alloys. In practice, excellent grain refinement is achieved using this processing technique with the average grain size often reduced to the true nano-scale range. Contrary to the significant grain refinement achieved in metals during HPT, the models of the hardness evolution are very different depending upon the material properties. For a better understanding of the material characteristics after conventional HPT processing, this report demonstrates the hardness evolutions in simple metals including high-purity Al, commercial purity aluminum Al-1050, ZK60A magnesium alloy and Zn-22% Al eutectoid alloy after processing by HPT. Separate models of hardness evolution are described with increasing equivalent strain by HPT. Moreover, a new approach for the use of HPT is demonstrated by synthesizing an Al-Mg metal system by processing two separate commercial metals of Al-1050 and ZK60A through conventional HPT processing at room temperature. (C) 2014 Brazilian Metallurgical, Materials and Mining Association. Published by Elsevier Editora Ltda. | en_US |
dc.description.sponsorship | This work was supported in part by the research fund of Hanyang University (HY-2013) (MK), in part by the R&D Convergence Program of MSIP and ISTK of Republic of Korea, Grant B551179-11-02-00 (BA), in part by the National Science Foundation of the United States under Grant No. DMR-1160966 (TGL) and in part by the European Research Council under ERC Grant Agreement No. 267464-SPDMETALS (APZ & TGL). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Hardness | en_US |
dc.subject | High-pressure torsion | en_US |
dc.subject | Homogeneity | en_US |
dc.subject | Severe plastic deformation | en_US |
dc.title | Evolution of hardness in ultrafine-grained metals processed by high-pressure torsion | en_US |
dc.type | Article | en_US |
dc.relation.no | 4 | - |
dc.relation.volume | 3 | - |
dc.identifier.doi | 10.1016/j.jmrt.2014.06.002 | - |
dc.relation.page | 311-318 | - |
dc.contributor.googleauthor | Kawasaki, Megumi | - |
dc.contributor.googleauthor | Lee, Han-Joo | - |
dc.contributor.googleauthor | Ahn, Byungmin | - |
dc.contributor.googleauthor | Zhilyaev, Alexander P. | - |
dc.contributor.googleauthor | Langdon, Terence G. | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | megumi | - |
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