Competing mechanisms on the strength of ion-irradiated Zr/Nb nanoscale multilayers: interface strength versus radiation hardening
Competing mechanisms on the strength of ion-irradiated Zr/Nb nanoscale multilayers: interface strength versus radiation hardening
The structural stability and mechanical properties of sputter-deposited Zr/Nb nanoscale multilayers subjected to Si-ion irradiation were investigated in relation to the individual layer thickness. The interface density distribution played a major role on the nature and amount of accumulated radiation damage. The multilayer with a smaller periodicity experienced a significantly higher atomic-scale disorder and radiation hardening compared to the multilayer with thicker individual layers. In the latter case, an enhanced radiation damage tolerance was achieved due to the balance between competing deformation mechanisms.
Interfaces, Multilayers, Nanoindentation, Radiation hardening, Transmission electron microscopy (TEM)
31-35
Callisti, M.
86e03724-aacc-46d5-bccc-4c7025556667
Karlik, M.
26f74a9e-c3e3-4f97-8f8d-32a8a6f288a2
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
15 July 2018
Callisti, M.
86e03724-aacc-46d5-bccc-4c7025556667
Karlik, M.
26f74a9e-c3e3-4f97-8f8d-32a8a6f288a2
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Callisti, M., Karlik, M. and Polcar, T.
(2018)
Competing mechanisms on the strength of ion-irradiated Zr/Nb nanoscale multilayers: interface strength versus radiation hardening.
Scripta Materialia, 152, .
(doi:10.1016/j.scriptamat.2018.03.039).
Abstract
The structural stability and mechanical properties of sputter-deposited Zr/Nb nanoscale multilayers subjected to Si-ion irradiation were investigated in relation to the individual layer thickness. The interface density distribution played a major role on the nature and amount of accumulated radiation damage. The multilayer with a smaller periodicity experienced a significantly higher atomic-scale disorder and radiation hardening compared to the multilayer with thicker individual layers. In the latter case, an enhanced radiation damage tolerance was achieved due to the balance between competing deformation mechanisms.
Text
AM Competing mechanisms on the strength of ion-irradiated Zr/Nb nanoscale multilayers: Interface strength versus radiation hardening
- Accepted Manuscript
More information
Accepted/In Press date: 27 March 2018
e-pub ahead of print date: 13 April 2018
Published date: 15 July 2018
Keywords:
Interfaces, Multilayers, Nanoindentation, Radiation hardening, Transmission electron microscopy (TEM)
Identifiers
Local EPrints ID: 420962
URI: http://eprints.soton.ac.uk/id/eprint/420962
ISSN: 1359-6462
PURE UUID: 646356a7-5db1-4fad-b07d-2d889b02f31d
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Date deposited: 18 May 2018 16:31
Last modified: 06 Jun 2024 04:03
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Contributors
Author:
M. Callisti
Author:
M. Karlik
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