An analysis of the shear zone for metals deformed by equal-channel angular processing
An analysis of the shear zone for metals deformed by equal-channel angular processing
Four fundamental models, based on slip-line theory, are compared to experimental results obtained from deforming scribed billets in a single pass of equal-channel angular pressing (ECAP). Two ECAP die configurations, having sharp and round corners, are used to determine the experimental flow-line fields for Pb, pure Cu and pure Al billets. Two different types of deformation behavior are observed when using the die with a sharp-corner: (a) for the Cu and Al billets a gap develops at the outer corner of the die so that the material flows without filling the outer corner and (b) for Pb billets a “dead-metal” zone is formed which fills with material in the outer corner of the die. Strain mapping is used to delineate different spatial strain distributions for sharp-corner and round-corner dies.
equal-channel angular processing (ecap), deformation, slip-line theory
239-242
Stoica, G.M.
f2beecd3-c5bf-42dc-a21a-23a4e8819a80
Fielden, D.E.
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McDaniels, R.
4aad754e-43a9-4edf-b1a5-6f2cdbfa79dc
Liu, Y.
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Huang, B.
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Liaw, P.K.
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Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2005
Stoica, G.M.
f2beecd3-c5bf-42dc-a21a-23a4e8819a80
Fielden, D.E.
8a07166c-b5b0-4e2f-9f34-8ea942b4cd26
McDaniels, R.
4aad754e-43a9-4edf-b1a5-6f2cdbfa79dc
Liu, Y.
621975c3-5440-4f2c-b313-4e724228220d
Huang, B.
1da4edaf-e0b9-403a-b200-27ca5a207c08
Liaw, P.K.
7278b514-7c3a-477d-b1bc-cb6948a35f62
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Stoica, G.M., Fielden, D.E., McDaniels, R., Liu, Y., Huang, B., Liaw, P.K., Xu, C. and Langdon, T.G.
(2005)
An analysis of the shear zone for metals deformed by equal-channel angular processing.
Materials Science and Engineering: A, 410-411, .
(doi:10.1016/j.msea.2005.08.186).
Abstract
Four fundamental models, based on slip-line theory, are compared to experimental results obtained from deforming scribed billets in a single pass of equal-channel angular pressing (ECAP). Two ECAP die configurations, having sharp and round corners, are used to determine the experimental flow-line fields for Pb, pure Cu and pure Al billets. Two different types of deformation behavior are observed when using the die with a sharp-corner: (a) for the Cu and Al billets a gap develops at the outer corner of the die so that the material flows without filling the outer corner and (b) for Pb billets a “dead-metal” zone is formed which fills with material in the outer corner of the die. Strain mapping is used to delineate different spatial strain distributions for sharp-corner and round-corner dies.
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Published date: 2005
Additional Information:
The Langdon Symposium: Flow and forming of Crystalline Materials
Keywords:
equal-channel angular processing (ecap), deformation, slip-line theory
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 23838
URI: http://eprints.soton.ac.uk/id/eprint/23838
ISSN: 0921-5093
PURE UUID: e616127c-2c6d-4c94-aec3-12b557bda4fa
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Date deposited: 22 Mar 2006
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
G.M. Stoica
Author:
D.E. Fielden
Author:
R. McDaniels
Author:
Y. Liu
Author:
B. Huang
Author:
P.K. Liaw
Author:
C. Xu
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