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Fracture toughness determination by repetitive nano-impact testing in Cu/W nanomultilayers with length-scale-dependent films properties

Fracture toughness determination by repetitive nano-impact testing in Cu/W nanomultilayers with length-scale-dependent films properties
Fracture toughness determination by repetitive nano-impact testing in Cu/W nanomultilayers with length-scale-dependent films properties

Nanoscale metallic multilayers based on Cu/W have been considered as a potential material for structural applications in nuclear reactors and for the cladding of storage tanks for advanced fuels kept at high temperatures. The understanding of how mechanical properties change in relation to periodicity, λ, is required in order to use Cu/W nano-multilayers as a protective coating against radiation damage. The aim of this work is to demonstrate the feasibility of using the repetitive-nano-impact technique to obtain quantitative fracture toughness, K C , values in nano-multilayers and assess its variation as a function of λ.

Dynamic fracture, Fracture toughness, Impact testing, Layered material, Stress intensity factor
1391-1404
Frutos, E.
8730c6ea-7f59-44b7-aa33-cfee57de8b25
Karlik, M.
df29ecf1-6f1e-4713-a15a-82b321804596
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Frutos, E.
8730c6ea-7f59-44b7-aa33-cfee57de8b25
Karlik, M.
df29ecf1-6f1e-4713-a15a-82b321804596
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2

Frutos, E., Karlik, M. and Polcar, T. (2016) Fracture toughness determination by repetitive nano-impact testing in Cu/W nanomultilayers with length-scale-dependent films properties. Procedia Structural Integrity, 2, 1391-1404. (doi:10.1016/j.prostr.2016.06.177).

Record type: Article

Abstract

Nanoscale metallic multilayers based on Cu/W have been considered as a potential material for structural applications in nuclear reactors and for the cladding of storage tanks for advanced fuels kept at high temperatures. The understanding of how mechanical properties change in relation to periodicity, λ, is required in order to use Cu/W nano-multilayers as a protective coating against radiation damage. The aim of this work is to demonstrate the feasibility of using the repetitive-nano-impact technique to obtain quantitative fracture toughness, K C , values in nano-multilayers and assess its variation as a function of λ.

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Published date: 2016
Additional Information: Funding Information: The authors wish to express their thanks for the financial support of the European Commission through the project RADINTERFACES (Grant Agreement Number 263273) and the Czech Science Foundation through the project 14-32801P. Publisher Copyright: Copyright © 2016 The Authors. Published by Elsevier B.V. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
Keywords: Dynamic fracture, Fracture toughness, Impact testing, Layered material, Stress intensity factor

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Local EPrints ID: 454415
URI: http://eprints.soton.ac.uk/id/eprint/454415
PURE UUID: dd85280e-fea1-45c1-9fd6-4d097acfbdcc
ORCID for T. Polcar: ORCID iD orcid.org/0000-0002-0863-6287

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Date deposited: 09 Feb 2022 17:32
Last modified: 25 Jun 2022 01:44

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Contributors

Author: E. Frutos
Author: M. Karlik
Author: T. Polcar ORCID iD

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