Mechanisms of low temperature dislocation motion in high-entropy Al0.5CoCrCuFeNi alloy
Mechanisms of low temperature dislocation motion in high-entropy Al0.5CoCrCuFeNi alloy
An analysis of the processes of plastic deformation and acoustic relaxation in a high-entropy alloy, Al
0.5CoCrCuFeNi, was carried out. The following were established: dominant dislocation defects; types of barriers that prevent the movement of dislocations; mechanisms of thermally activated movement of various elements of dislocation lines through barriers at room and low temperatures. Based on modern dislocation theory, quantitative estimates were obtained for the most important characteristics of dislocations and their interaction with barriers.
acoustic relaxation, cryogenic temperatures, high-entropy alloy, low-temperature plasticity, plastic deformation
Semerenko, Yuri. O.
7c4c6b28-a610-485a-a136-6b5d218454c4
Natsik, Vasilij D.
23ce3dda-4cfc-4cd1-a2ec-e8db4607f954
Tabachnikova, Elena D.
b02a01f9-ff38-4d59-a70d-cfe724d57aff
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
30 June 2024
Semerenko, Yuri. O.
7c4c6b28-a610-485a-a136-6b5d218454c4
Natsik, Vasilij D.
23ce3dda-4cfc-4cd1-a2ec-e8db4607f954
Tabachnikova, Elena D.
b02a01f9-ff38-4d59-a70d-cfe724d57aff
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Semerenko, Yuri. O., Natsik, Vasilij D., Tabachnikova, Elena D., Huang, Yi and Langdon, Terence G.
(2024)
Mechanisms of low temperature dislocation motion in high-entropy Al0.5CoCrCuFeNi alloy.
Metals, 14 (7), [778].
(doi:10.3390/met14070778).
Abstract
An analysis of the processes of plastic deformation and acoustic relaxation in a high-entropy alloy, Al
0.5CoCrCuFeNi, was carried out. The following were established: dominant dislocation defects; types of barriers that prevent the movement of dislocations; mechanisms of thermally activated movement of various elements of dislocation lines through barriers at room and low temperatures. Based on modern dislocation theory, quantitative estimates were obtained for the most important characteristics of dislocations and their interaction with barriers.
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metals-14-00778
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Accepted/In Press date: 27 June 2024
Published date: 30 June 2024
Keywords:
acoustic relaxation, cryogenic temperatures, high-entropy alloy, low-temperature plasticity, plastic deformation
Identifiers
Local EPrints ID: 491878
URI: http://eprints.soton.ac.uk/id/eprint/491878
ISSN: 2075-4701
PURE UUID: c6627803-f3f3-439e-9ab1-cdcd2350d64d
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Date deposited: 04 Jul 2024 17:58
Last modified: 20 Nov 2024 02:44
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Contributors
Author:
Yuri. O. Semerenko
Author:
Vasilij D. Natsik
Author:
Elena D. Tabachnikova
Author:
Yi Huang
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