Microstructural evolution and properties of a hot extruded and HPT-processed resorbable magnesium WE43 alloy
Microstructural evolution and properties of a hot extruded and HPT-processed resorbable magnesium WE43 alloy
Disks of an extruded magnesium WE43 alloy are processed by high-pressure torsion (HPT) and the evolutions of microstructure and mechanical properties are investigated in detail. Excellent grain refinement is achieved by HPT processing with a reduction in grain size from an initial value of ?12??m to a final value of ?200–300?nm after 10 turns. The microhardness increases significantly with HPT processing but low hardness values are recorded at the centers of the disks. The tensile strength initially increases and then decreases while the elongation decreases. Observations of the fracture surfaces reveal a corresponding transition of the fracture mode from ductile to brittle.
1600698 (1-8)
Liu, Dexue X.
7022c006-2f30-426c-88ea-e30739ea616f
Pang, Xin
5eb896c7-c4a2-4e12-a186-e4123e55b30e
Li, Denglu L.
485ca7e6-8709-4f23-b112-5bf9086a7031
Guo, Chenggong G.
5707ed48-8728-4f53-b572-bbbbb390fae5
Wongsa-Ngam, Jittraporn
3a196159-d8e5-4658-a47b-a6f6c5a7dcc7
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Meyers, Marc A.
d0a8c07b-3f0f-493b-bef1-3a85246f5e4d
17 March 2017
Liu, Dexue X.
7022c006-2f30-426c-88ea-e30739ea616f
Pang, Xin
5eb896c7-c4a2-4e12-a186-e4123e55b30e
Li, Denglu L.
485ca7e6-8709-4f23-b112-5bf9086a7031
Guo, Chenggong G.
5707ed48-8728-4f53-b572-bbbbb390fae5
Wongsa-Ngam, Jittraporn
3a196159-d8e5-4658-a47b-a6f6c5a7dcc7
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Meyers, Marc A.
d0a8c07b-3f0f-493b-bef1-3a85246f5e4d
Liu, Dexue X., Pang, Xin, Li, Denglu L., Guo, Chenggong G., Wongsa-Ngam, Jittraporn, Langdon, Terence G. and Meyers, Marc A.
(2017)
Microstructural evolution and properties of a hot extruded and HPT-processed resorbable magnesium WE43 alloy.
Advanced Engineering Materials, 19 (3), .
(doi:10.1002/adem.201600698).
Abstract
Disks of an extruded magnesium WE43 alloy are processed by high-pressure torsion (HPT) and the evolutions of microstructure and mechanical properties are investigated in detail. Excellent grain refinement is achieved by HPT processing with a reduction in grain size from an initial value of ?12??m to a final value of ?200–300?nm after 10 turns. The microhardness increases significantly with HPT processing but low hardness values are recorded at the centers of the disks. The tensile strength initially increases and then decreases while the elongation decreases. Observations of the fracture surfaces reveal a corresponding transition of the fracture mode from ductile to brittle.
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Accepted/In Press date: 27 November 2016
e-pub ahead of print date: 6 December 2016
Published date: 17 March 2017
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 403620
URI: http://eprints.soton.ac.uk/id/eprint/403620
ISSN: 1438-1656
PURE UUID: 21b043bb-0d77-4ba1-bf9c-6ec28f0d01f1
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Date deposited: 06 Dec 2016 15:21
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
Dexue X. Liu
Author:
Xin Pang
Author:
Denglu L. Li
Author:
Chenggong G. Guo
Author:
Jittraporn Wongsa-Ngam
Author:
Marc A. Meyers
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