Microstructural evolution and mechanical properties of a Cu–Zr alloy processed by high-pressure torsion
Microstructural evolution and mechanical properties of a Cu–Zr alloy processed by high-pressure torsion
Experiments were conducted on a Cu–0.1% Zr alloy in order to examine the evolution of hardness and microstructure after processing by high-pressure torsion. Disks were pressed through different numbers of revolutions up to a maximum of 10 turns using an applied pressure of 6.0 GPa. It is shown that there is a gradual evolution in both the hardness and the microstructure with increasing numbers of turns. After 5 and 10 turns there is a high degree of hardness homogeneity and the microstructure consists of well-defined equiaxed grains. The measured grain size after 5 turns was ?180 nm in the peripheral region of the disk. Tensile testing at 673 and 723 K after processing through 5 and 10 turns showed a maximum elongation to failure of ?280% at 723 K using a strain rate of 1.0 × 10?4 s?1
7715-7722
Wongsa-Ngam, Jittraporn
3a196159-d8e5-4658-a47b-a6f6c5a7dcc7
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Zhao, Yonghao
a1946ade-15b3-409a-9f81-93919b91065d
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
25 September 2011
Wongsa-Ngam, Jittraporn
3a196159-d8e5-4658-a47b-a6f6c5a7dcc7
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Zhao, Yonghao
a1946ade-15b3-409a-9f81-93919b91065d
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Wongsa-Ngam, Jittraporn, Kawasaki, Megumi, Zhao, Yonghao and Langdon, Terence G.
(2011)
Microstructural evolution and mechanical properties of a Cu–Zr alloy processed by high-pressure torsion.
Materials Science and Engineering: A, 528 (25-26), .
(doi:10.1016/j.msea.2011.06.056).
Abstract
Experiments were conducted on a Cu–0.1% Zr alloy in order to examine the evolution of hardness and microstructure after processing by high-pressure torsion. Disks were pressed through different numbers of revolutions up to a maximum of 10 turns using an applied pressure of 6.0 GPa. It is shown that there is a gradual evolution in both the hardness and the microstructure with increasing numbers of turns. After 5 and 10 turns there is a high degree of hardness homogeneity and the microstructure consists of well-defined equiaxed grains. The measured grain size after 5 turns was ?180 nm in the peripheral region of the disk. Tensile testing at 673 and 723 K after processing through 5 and 10 turns showed a maximum elongation to failure of ?280% at 723 K using a strain rate of 1.0 × 10?4 s?1
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e-pub ahead of print date: 24 June 2011
Published date: 25 September 2011
Organisations:
Bioengineering Group
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Local EPrints ID: 335082
URI: http://eprints.soton.ac.uk/id/eprint/335082
ISSN: 0921-5093
PURE UUID: 6df1dd0a-7495-47c6-a38a-52f7bddf04db
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Date deposited: 14 Mar 2012 09:48
Last modified: 15 Mar 2024 03:13
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Author:
Jittraporn Wongsa-Ngam
Author:
Megumi Kawasaki
Author:
Yonghao Zhao
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