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Experimental studies and modelling of the deformation behaviour of multiple nanolayers

Wang, Jiangting, Yang, Chunhui and Hodgson, Peter D. 2012, Experimental studies and modelling of the deformation behaviour of multiple nanolayers, Steel research international, Special Issue, pp. 755-758.

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Title Experimental studies and modelling of the deformation behaviour of multiple nanolayers
Author(s) Wang, JiangtingORCID iD for Wang, Jiangting orcid.org/0000-0002-8171-6291
Yang, Chunhui
Hodgson, Peter D.
Journal name Steel research international
Season Special Issue
Start page 755
End page 758
Total pages 4
Publisher Wiley
Place of publication London, Eng.
Publication date 2012-01-01
ISSN 1611-3683
Keyword(s) Cu/Fe
Failure
Finite element modelling
Microcompression test
Multiple nanolayers
Science & Technology
Technology
Metallurgy & Metallurgical Engineering
Summary Microcompression tests were performed on monolithic Cu and Fe thin films and a Cu/Fe multilayer that had each individual layer of 200 nm thick, to understand the mechanical behaviour of multiple nanolayers. The micron-sized pillars were prepared by focused-ion beam (FIB) technique and compressed with a flat punch in a nanoindenter. The flow curves of the monolithic Cu and Fe thin films and Cu/Fe multilayer were extracted from the microcompression tests. The monolithic Cu thin film bulges in the top region of the pillar, while the Fe thin film cracks due to its columnar grain structure. For the Cu/Fe multilayer, the ductile Cu layers accommodate the majority of plastic deformation upon compression, while cracking in the Fe layers leads to the failure of the multilayer. Finite element models of microcompression tests were also developed to provide insights into the deformation behaviours of the multilayer and monolithic thin films. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2012, Wiley
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070125

Document type: Journal Article
Collection: Institute for Frontier Materials
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