Mechanical properties of copper after compression stage of high-pressure torsion
SCIE
SCOPUS
- Title
- Mechanical properties of copper after compression stage of high-pressure torsion
- Authors
- Song, YP; Yoon, EY; Lee, DJ; Lee, JH; Kim, HS
- Date Issued
- 2011-05-24
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- The mechanical properties and microstructure of commercial purity copper subjected to various pressure values in a compression stage of high-pressure torsion (HPT) were investigated here by analyzing microhardness, deformed geometry, and electron back scattering diffraction images along the radial direction of the compressed disks. Compression before torsion significantly increases the hardness and low angle grain boundary in the center as well as in the intermediate and edge regions. It is found that the compressive strain is the reason for the increased strength and refined grain size in the center region during HPT. This result sheds light on the strategy for achieving microstructure and property homogeneity in HPT. (C) 2011 Elsevier B.V. All rights reserved.
- Keywords
- High-pressure torsion; Compression stage; Copper; Ultrafine grained microstructure; Deformation heterogeneity; FINITE-ELEMENT-ANALYSIS; SEVERE PLASTIC-DEFORMATION; MICROSTRUCTURAL EVOLUTION; BEHAVIOR; HOMOGENEITY; STRAIN
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17434
- DOI
- 10.1016/J.MSEA.2011.02.020
- ISSN
- 0921-5093
- Article Type
- Article
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, vol. 528, no. 13, page. 4840 - 4844, 2011-05-24
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- There are no files associated with this item.
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