Experimental studies and modelling of the deformation behaviour of multiple nanolayers

Jiangting Wang, Chunhui Yang, Peter D. Hodgson

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

![CDATA[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.]]
Original languageEnglish
Title of host publicationMetal forming 2012: Proceedings of the 14th International Conference on Metal Forming, September 16 - 19, 2012, AGH University of Science and Technology, Krakow, Poland
PublisherWiley
Pages755-758
Number of pages4
ISBN (Print)9783514007970
Publication statusPublished - 2012
EventInternational Conference on Metal Forming -
Duration: 16 Sept 2012 → …

Conference

ConferenceInternational Conference on Metal Forming
Period16/09/12 → …

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