Finite element analysis of plastic deformation in twist extrusion
SCIE
SCOPUS
- Title
- Finite element analysis of plastic deformation in twist extrusion
- Authors
- Latypov, MI; I.V. Alexandrov; Y.E. Beygelzimer; Beygelzimer, YE; Lee, S; Kim, HS
- Date Issued
- 2012-07
- Publisher
- ELSEVIER
- Abstract
- Twist extrusion (TE), a promising severe plastic deformation (SPD) technique for grain refinement down to ultrafine/nanocrystalline microstructures, was introduced as an attempt to provide large plastic deformation conditions similar to those in high pressure torsion while allowing large workpiece dimensions for industrial applications. As a relatively new SPD technique, TE requires in-depth investigation of its plastic deformation characteristics. The present study investigates the influence of process parameters such as backward pressure and friction on the loading history, the stress/strain states, and the final shape of processed workpieces using the finite element method. The results provide a basis for reasonable decision of processing conditions and also identify prerequisites for studies in formability and fracture of metals subjected to TE. (C) 2012 Elsevier B.V. All rights reserved.
- Keywords
- Twist extrusion; Severe plastic deformation; Finite element method; Simple shear; Backward pressure; BACK-PRESSURE; CHANNEL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15854
- DOI
- 10.1016/j.commatsci.2012.03.035
- ISSN
- 0927-0256
- Article Type
- Article
- Citation
- Computational Materials Science, vol. 60, page. 194 - 200, 2012-07
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