Microdiffraction to detemine grain sizes at selected postitions in disks precessed by high-pressure torsion
Microdiffraction to detemine grain sizes at selected postitions in disks precessed by high-pressure torsion
Disks of pure Cu, Cu–10% Zn and Cu–30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu–30% Zn alloy but for the Cu–10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.
copper alloys, high-pressure torsion, microhardness, severe plastic deformation, x-ray line profile analysis
153-156
Ungár, Tamás
680ae94a-9896-4aae-adb3-60bb9a492bf5
Belogh, Levente
10d099e2-0640-4cea-a15f-60b2d3a4e87b
Zhu, Yuntian T.
11fb4604-6eb0-4dbb-861f-9e5c671907f3
Horita, Zenji
011521b8-3b29-494b-bf3f-346827ddbcce
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2007
Ungár, Tamás
680ae94a-9896-4aae-adb3-60bb9a492bf5
Belogh, Levente
10d099e2-0640-4cea-a15f-60b2d3a4e87b
Zhu, Yuntian T.
11fb4604-6eb0-4dbb-861f-9e5c671907f3
Horita, Zenji
011521b8-3b29-494b-bf3f-346827ddbcce
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Ungár, Tamás, Belogh, Levente, Zhu, Yuntian T., Horita, Zenji, Xu, Cheng and Langdon, Terence G
(2007)
Microdiffraction to detemine grain sizes at selected postitions in disks precessed by high-pressure torsion.
Materials Science and Engineering: A, 444 (1-2), .
(doi:10.1016/j.msea.2006.08.059).
Abstract
Disks of pure Cu, Cu–10% Zn and Cu–30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu–30% Zn alloy but for the Cu–10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.
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Published date: 2007
Keywords:
copper alloys, high-pressure torsion, microhardness, severe plastic deformation, x-ray line profile analysis
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 43719
URI: http://eprints.soton.ac.uk/id/eprint/43719
ISSN: 0921-5093
PURE UUID: 3c81ea20-85bf-4c0b-b996-3ddc81d04622
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Date deposited: 26 Jan 2007
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
Tamás Ungár
Author:
Levente Belogh
Author:
Yuntian T. Zhu
Author:
Zenji Horita
Author:
Cheng Xu
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