Influence of stacking fault energy on nanostructure formation under high pressure torsion
Influence of stacking fault energy on nanostructure formation under high pressure torsion
Copper, bronze (Cu–10 wt.% Zn) and brass (Cu–30 wt.% Zn) were deformed by high pressure torsion (HPT) under a pressure of 6 GPa for five rotations. The stacking fault energies (SFEs) of copper, bronze and brass are 78, 35 and 14 mJ/m2, respectively, and their average grain sizes after the HPT processing were about 84, 54 and 17 nm, respectively. Deformation twins were found in all samples and their densities increased with decreasing SFE. This work demonstrates that under the same conditions of HPT a low SFE promotes the formation of nanostructures and deformation twins.
stacking fault energy, copper and copper alloys, high pressure torsion, microstructure, deformation twins
188-193
Zhao, Y.H.
4fea315b-8c7d-4bb1-badc-236b309ef228
Liao, X.Z.
f0645a6d-aee1-4d28-aa13-f1b00fdedc41
Zhu, Y.T.
ddbd5b30-13ca-45a6-9296-ed5b60811efb
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2005
Zhao, Y.H.
4fea315b-8c7d-4bb1-badc-236b309ef228
Liao, X.Z.
f0645a6d-aee1-4d28-aa13-f1b00fdedc41
Zhu, Y.T.
ddbd5b30-13ca-45a6-9296-ed5b60811efb
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhao, Y.H., Liao, X.Z., Zhu, Y.T., Horita, Z. and Langdon, T.G.
(2005)
Influence of stacking fault energy on nanostructure formation under high pressure torsion.
Materials Science and Engineering: A, 410-411, .
(doi:10.1016/j.msea.2005.08.074).
Abstract
Copper, bronze (Cu–10 wt.% Zn) and brass (Cu–30 wt.% Zn) were deformed by high pressure torsion (HPT) under a pressure of 6 GPa for five rotations. The stacking fault energies (SFEs) of copper, bronze and brass are 78, 35 and 14 mJ/m2, respectively, and their average grain sizes after the HPT processing were about 84, 54 and 17 nm, respectively. Deformation twins were found in all samples and their densities increased with decreasing SFE. This work demonstrates that under the same conditions of HPT a low SFE promotes the formation of nanostructures and deformation twins.
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Published date: 2005
Additional Information:
The Langdon Symposium: Flow and forming of Crystalline Materials
Keywords:
stacking fault energy, copper and copper alloys, high pressure torsion, microstructure, deformation twins
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 23845
URI: http://eprints.soton.ac.uk/id/eprint/23845
ISSN: 0921-5093
PURE UUID: 25f0bd4f-86b8-4a1e-99af-553753c18682
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Date deposited: 22 Mar 2006
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
Y.H. Zhao
Author:
X.Z. Liao
Author:
Y.T. Zhu
Author:
Z. Horita
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