Microstructural and hardness evolution of additively manufactured Al–Si–Cu alloy processed by high-pressure torsion
Microstructural and hardness evolution of additively manufactured Al–Si–Cu alloy processed by high-pressure torsion
Nanostructured Al-9%Si-3%Cu alloy was achieved by direct metal laser sintering (DMLS) and then processed using high-pressure torsion (HPT) processing, which resulted in considerable grain refinement down to 60 nm associated with a substantial dislocation density up 6.2×1014m-2 and a significant reduction in the porosity. Hardness measurements across the horizontal and vertical cross-sections showed an improvement in the strength homogeneity for processed samples after 10 turns of HPT processing. These results indicate that a controllable ultrafinegrained microstructure can be achieved by employing additive manufacturing, followed by effective severe plastic deformation processing.
8956 -8977
Al–Zubaydi, Ahmed S.J.
d59e9818-6c38-4a94-9c5a-e40f9b875862
Gao, Nong
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Reed, Philippa
8b79d87f-3288-4167-bcfc-c1de4b93ce17
6 May 2022
Al–Zubaydi, Ahmed S.J.
d59e9818-6c38-4a94-9c5a-e40f9b875862
Gao, Nong
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Reed, Philippa
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Al–Zubaydi, Ahmed S.J., Gao, Nong, Wang, Shuncai and Reed, Philippa
(2022)
Microstructural and hardness evolution of additively manufactured Al–Si–Cu alloy processed by high-pressure torsion.
Materials Science and Engineering, 57 (19), .
(doi:10.1007/s10853-022-07234-4).
Abstract
Nanostructured Al-9%Si-3%Cu alloy was achieved by direct metal laser sintering (DMLS) and then processed using high-pressure torsion (HPT) processing, which resulted in considerable grain refinement down to 60 nm associated with a substantial dislocation density up 6.2×1014m-2 and a significant reduction in the porosity. Hardness measurements across the horizontal and vertical cross-sections showed an improvement in the strength homogeneity for processed samples after 10 turns of HPT processing. These results indicate that a controllable ultrafinegrained microstructure can be achieved by employing additive manufacturing, followed by effective severe plastic deformation processing.
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Al-Zubaydi2022_Article_MicrostructuralAndHardnessEvol
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Accepted/In Press date: 13 April 2022
Published date: 6 May 2022
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Funding Information:
This work was supported by the Ministry of Higher Education and Scientific Research and University of Technology (Iraq), as well as the University of Southampton, School of Engineering (UK). The author (Ahmed S.J. Al-Zubaydi) is appreciative to Prof. Philippa A.S. Reed and Dr. Nong Gao for their support.
Funding Information:
This work was supported by the Ministry of Higher Education and Scientific Research and University of Technology (Iraq), as well as the University of Southampton, School of Engineering (UK). The author (Ahmed S.J. Al-Zubaydi) is appreciative to Prof. Philippa A.S. Reed and Dr. Nong Gao for their support.
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© 2022, The Author(s).
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Local EPrints ID: 468344
URI: http://eprints.soton.ac.uk/id/eprint/468344
ISSN: 0025-5416
PURE UUID: f0d8d6f4-e447-4945-be2f-3bdff32f26ec
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Date deposited: 10 Aug 2022 18:15
Last modified: 17 Mar 2024 02:53
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Ahmed S.J. Al–Zubaydi
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