Microstructural evolution and electro-resistivity in HPT nickel
Microstructural evolution and electro-resistivity in HPT nickel
Microstructural evolution of pure nickel was studied in the very early stages of high-pressure torsioning. It is shown that the microhardness becomes sufficiently homogeneous across the disks after one-half of a complete revolution. An analysis by EBSD supports this finding showing almost identical EBSD microstructures for HPT through more than 0.5 rotation. Electrical resistivity measurements correlate with the microhardness and EBSD data showing a maximum value at the strain corresponding to 0.5 rotation. The results suggest that the main source of electron scattering is point defects and dislocations.
437-445
Korznikova, E.A.
4262895a-a25a-463c-8b7d-1704eb5dadd9
Mironov, S. Yu
b5631813-a67a-430d-9c9e-ea7d8a90d185
Korznikov, A.V.
d4efb517-eb67-47b0-9dc2-62b03fa513de
Zhilyaev, A.P.
fe22cdc1-590d-4bbd-bd1a-6ca18e3ee971
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
October 2012
Korznikova, E.A.
4262895a-a25a-463c-8b7d-1704eb5dadd9
Mironov, S. Yu
b5631813-a67a-430d-9c9e-ea7d8a90d185
Korznikov, A.V.
d4efb517-eb67-47b0-9dc2-62b03fa513de
Zhilyaev, A.P.
fe22cdc1-590d-4bbd-bd1a-6ca18e3ee971
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Korznikova, E.A., Mironov, S. Yu, Korznikov, A.V., Zhilyaev, A.P. and Langdon, T.G.
(2012)
Microstructural evolution and electro-resistivity in HPT nickel.
Materials Science and Engineering: A, 556, .
(doi:10.1016/j.msea.2012.07.010).
Abstract
Microstructural evolution of pure nickel was studied in the very early stages of high-pressure torsioning. It is shown that the microhardness becomes sufficiently homogeneous across the disks after one-half of a complete revolution. An analysis by EBSD supports this finding showing almost identical EBSD microstructures for HPT through more than 0.5 rotation. Electrical resistivity measurements correlate with the microhardness and EBSD data showing a maximum value at the strain corresponding to 0.5 rotation. The results suggest that the main source of electron scattering is point defects and dislocations.
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Published date: October 2012
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 345678
URI: http://eprints.soton.ac.uk/id/eprint/345678
ISSN: 0921-5093
PURE UUID: 6252d692-8d57-4ceb-bf96-eb6f4e06e20a
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Date deposited: 28 Nov 2012 12:59
Last modified: 15 Mar 2024 03:13
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Contributors
Author:
E.A. Korznikova
Author:
S. Yu Mironov
Author:
A.V. Korznikov
Author:
A.P. Zhilyaev
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