Microstructure and microtexture evolution with aging treatment in an Al-Mg-Si alloy severely deformed by HPT
Microstructure and microtexture evolution with aging treatment in an Al-Mg-Si alloy severely deformed by HPT
Experiments were conducted on an Al–0.6 % Mg–0.4 % Si alloy to evaluate the effect of different preliminary thermal treatments on the evolution of microstructure and microtexture during processing by High-Pressure Torsion (HPT). Disks of the alloy were solution-treated, then some disks were briefly aged at 473 K, and other disks were briefly aged at 523 K before processing by HPT for up to 20 complete revolutions. The processing by HPT refined the microstructure to an average grain size as small as ~0.25 ?m in the solution-treated alloy after 20 turns but preliminary aging led to slightly larger average grain sizes of ~0.35–0.40 ?m after 20 turns. For all processing conditions, there was a high fraction of high-angle grain boundaries after HPT and it is shown that aging introduces changes in the microtexture intensities.
4573-4581
Loucif, A.
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Baudin, T.
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Figueiredo, R.B.
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Brisset, F.
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Helbert, A.L.
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Chemam, R.
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Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2013
Loucif, A.
f5239165-a22b-45f8-a650-bbba9ea9d0b3
Baudin, T.
7b1243e5-273f-45c6-b806-13663d7c1743
Figueiredo, R.B.
1b4f5fa6-b201-4435-8f5e-13833fc8d504
Brisset, F.
713eea79-7b40-4fae-8e56-32072c344852
Helbert, A.L.
2bfe66f6-ba7c-4a4f-9994-5a1b8386d771
Chemam, R.
dd0a760f-afd0-4639-b83d-70070188281c
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Loucif, A., Baudin, T., Figueiredo, R.B., Brisset, F., Helbert, A.L., Chemam, R. and Langdon, T.G.
(2013)
Microstructure and microtexture evolution with aging treatment in an Al-Mg-Si alloy severely deformed by HPT.
Journal of Materials Science, 48 (13), .
(doi:10.1007/s10853-012-7065-z).
Abstract
Experiments were conducted on an Al–0.6 % Mg–0.4 % Si alloy to evaluate the effect of different preliminary thermal treatments on the evolution of microstructure and microtexture during processing by High-Pressure Torsion (HPT). Disks of the alloy were solution-treated, then some disks were briefly aged at 473 K, and other disks were briefly aged at 523 K before processing by HPT for up to 20 complete revolutions. The processing by HPT refined the microstructure to an average grain size as small as ~0.25 ?m in the solution-treated alloy after 20 turns but preliminary aging led to slightly larger average grain sizes of ~0.35–0.40 ?m after 20 turns. For all processing conditions, there was a high fraction of high-angle grain boundaries after HPT and it is shown that aging introduces changes in the microtexture intensities.
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Published date: 2013
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 351981
URI: http://eprints.soton.ac.uk/id/eprint/351981
ISSN: 0022-2461
PURE UUID: 4d857346-b685-4ef0-bbb8-df9edf7234b3
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Date deposited: 29 Apr 2013 15:40
Last modified: 15 Mar 2024 03:13
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Author:
A. Loucif
Author:
T. Baudin
Author:
R.B. Figueiredo
Author:
F. Brisset
Author:
A.L. Helbert
Author:
R. Chemam
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