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Finite element analysis of plastic deformation in twist extrusion

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Title Finite element analysis of plastic deformation in twist extrusion
 
Creator Latypov M.I.
Alexandrov I.V.
Beygelzimer Y
Lee S.
Kim H.S.
 
Subject Twist extrusion
ultrafine/nanocrystalline microstructures
grain refinement
 
Description 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.
 
Date 2012-12-09T20:00:36Z
2012-12-09T20:00:36Z
2012
 
Type Article
 
Identifier http://ea.donntu.edu.ua/handle/123456789/16440
 
Relation SCOPUS, IF 1.583;Computational Materials Science 60 (2012) 194–200
 
Publisher Computational Materials Science