Micro-forming using ultrafine-grained aluminum processed by equal-channel angular pressing
Micro-forming using ultrafine-grained aluminum processed by equal-channel angular pressing
A very high-purity (99.999%) aluminum was processed by equal-channel angular pressing (ECAP) at room temperature through 1 to 8 passes using a die with a channel angle of 90°. Analysis shows that processing by ECAP produces an ultrafine-grained (UFG) structure with a grain size of ?1.3??m and with microhardness and microstructural homogeneity. The mechanical properties and the fracture behavior were evaluated using micro-tensile testing after ECAP processing. A micro-forming process was used to fabricate a micro-turbine at ambient temperature and subsequent examination demonstrated that UFG pure aluminum gives higher strength and more uniform mechanical properties by comparison with conventional coarse-grained pure aluminum. The results confirm the very significant potential for using UFG pure aluminum for micro-forming at ambient temperature.
1022-1033
Xu, Jie
593871b5-a17a-4e0f-ae0e-7e48b1aadd99
Zhu, Xiaocheng
fbce4cb2-a109-48b3-99da-64d55dbbf616
Shi, Lei
3e73da43-5e7e-4544-a327-9de0046edfa2
Shan, Debin
fd8652eb-1eeb-4ae2-bcc4-102320f3c2d7
Guo, Bin
4c18c2f2-4b7f-4ac8-8fa1-51b580fab4c8
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2015
Xu, Jie
593871b5-a17a-4e0f-ae0e-7e48b1aadd99
Zhu, Xiaocheng
fbce4cb2-a109-48b3-99da-64d55dbbf616
Shi, Lei
3e73da43-5e7e-4544-a327-9de0046edfa2
Shan, Debin
fd8652eb-1eeb-4ae2-bcc4-102320f3c2d7
Guo, Bin
4c18c2f2-4b7f-4ac8-8fa1-51b580fab4c8
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Xu, Jie, Zhu, Xiaocheng, Shi, Lei, Shan, Debin, Guo, Bin and Langdon, Terence G.
(2015)
Micro-forming using ultrafine-grained aluminum processed by equal-channel angular pressing.
Advanced Engineering Materials, 17 (7), .
(doi:10.1002/adem.201400448).
Abstract
A very high-purity (99.999%) aluminum was processed by equal-channel angular pressing (ECAP) at room temperature through 1 to 8 passes using a die with a channel angle of 90°. Analysis shows that processing by ECAP produces an ultrafine-grained (UFG) structure with a grain size of ?1.3??m and with microhardness and microstructural homogeneity. The mechanical properties and the fracture behavior were evaluated using micro-tensile testing after ECAP processing. A micro-forming process was used to fabricate a micro-turbine at ambient temperature and subsequent examination demonstrated that UFG pure aluminum gives higher strength and more uniform mechanical properties by comparison with conventional coarse-grained pure aluminum. The results confirm the very significant potential for using UFG pure aluminum for micro-forming at ambient temperature.
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e-pub ahead of print date: 2 January 2015
Published date: 2015
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 382396
URI: http://eprints.soton.ac.uk/id/eprint/382396
ISSN: 1438-1656
PURE UUID: f78fc19a-6541-4b15-baf2-8b2e41ae8dc8
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Date deposited: 27 Oct 2015 10:52
Last modified: 15 Mar 2024 03:14
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Author:
Jie Xu
Author:
Xiaocheng Zhu
Author:
Lei Shi
Author:
Debin Shan
Author:
Bin Guo
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