Shear fracture mechanism in micro-tension of an ultrafine-grained pure copper using synchrotron radiation X-ray tomography
Shear fracture mechanism in micro-tension of an ultrafine-grained pure copper using synchrotron radiation X-ray tomography
In order to investigate the early fracture of ultrafine-grained (UFG) pure copper with a partially recrystallized microstructure and simple shear texture, the evolution of surface strain was measured using in situ micro-tension with digital image correlation. The spatial distribution of voids in tensile specimens was revealed after testing using synchrotron radiation X-ray tomography. The results show that the shear fracture behavior is associated with void evolution in UFG copper and this is strongly affected by the simple shear texture produced by equal-channel angular pressing (ECAP). The results have important implications for use in micro-forming.
25-29
Li, Jianwei
299f1c63-8058-414b-afd1-c5c9a6a13762
Xu, Jie
593871b5-a17a-4e0f-ae0e-7e48b1aadd99
Guo, Bin
6454155d-fa5f-480b-8747-88d06498a923
Shan, Debin
fd8652eb-1eeb-4ae2-bcc4-102320f3c2d7
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
15 April 2017
Li, Jianwei
299f1c63-8058-414b-afd1-c5c9a6a13762
Xu, Jie
593871b5-a17a-4e0f-ae0e-7e48b1aadd99
Guo, Bin
6454155d-fa5f-480b-8747-88d06498a923
Shan, Debin
fd8652eb-1eeb-4ae2-bcc4-102320f3c2d7
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Li, Jianwei, Xu, Jie, Guo, Bin, Shan, Debin and Langdon, Terence G.
(2017)
Shear fracture mechanism in micro-tension of an ultrafine-grained pure copper using synchrotron radiation X-ray tomography.
Scripta Materialia, 132, .
(doi:10.1016/j.scriptamat.2017.01.021).
Abstract
In order to investigate the early fracture of ultrafine-grained (UFG) pure copper with a partially recrystallized microstructure and simple shear texture, the evolution of surface strain was measured using in situ micro-tension with digital image correlation. The spatial distribution of voids in tensile specimens was revealed after testing using synchrotron radiation X-ray tomography. The results show that the shear fracture behavior is associated with void evolution in UFG copper and this is strongly affected by the simple shear texture produced by equal-channel angular pressing (ECAP). The results have important implications for use in micro-forming.
Text
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Accepted/In Press date: 19 January 2017
e-pub ahead of print date: 29 January 2017
Published date: 15 April 2017
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 405230
URI: http://eprints.soton.ac.uk/id/eprint/405230
ISSN: 1359-6462
PURE UUID: 51188781-1f5c-4c35-af3e-30028c2453c9
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Date deposited: 30 Jan 2017 14:18
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
Jianwei Li
Author:
Jie Xu
Author:
Bin Guo
Author:
Debin Shan
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