Plastic deformation characteristics of cross-equal channel angular pressing

Anumalasetty, Venkata Nagasekhar and Kim, Hyoung Seop (2008) Plastic deformation characteristics of cross-equal channel angular pressing. Computational Materials Science, 43 4: 1069-1073. doi:10.1016/j.commatsci.2008.02.030


Author Anumalasetty, Venkata Nagasekhar
Kim, Hyoung Seop
Title Plastic deformation characteristics of cross-equal channel angular pressing
Journal name Computational Materials Science   Check publisher's open access policy
ISSN 0927-0256
Publication date 2008-10-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.commatsci.2008.02.030
Volume 43
Issue 4
Start page 1069
End page 1073
Total pages 5
Editor H. Dreysse
S. Schmauder
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Language eng
Subject 291403 Alloy Materials
C1
861203 Metal Castings
091207 Metals and Alloy Materials
0912 Materials Engineering
Abstract For the first time, the plastic deformation characteristics of cross-equal channel pressing (cross-ECAP), a modified equal channel angular pressing, using a cross-shaped channel instead of a conventional l-shaped channel, was analyzed by using finite element analysis. The deformation in the cross-ECAP is more complicated and the strain induced is much more severe than that in the conventional ECAP. However, the plastic strain is localized in the central linear region of the workpiece and very small strain is developed in the edge regions, which is in good agreement with experimental results in the literature showing nonuniformity in microstructure and hardness distribution. The load requirements of cross-ECAP are much higher in comparison to conventional ECAP and T-ECAP processes.Copyright © 2008 Elsevier B.V
Keyword Deformation non-uniformity
Cross-channel extrusion
Severe plastic deformation
Equal channel angular pressing
Finite element analysis
Stress–strain variations
Q-Index Code C1
Q-Index Status Confirmed Code

 
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Created: Thu, 02 Apr 2009, 23:24:58 EST by Sally Beard on behalf of Materials