An in-situ synchrotron study on microplastic flow of electrodeposited nanocrystalline nickel

Ghosh, Pradipta and Van Petegem, Steven and Van Swygenhoven, Helena and Chokshi, Atul H (2017) An in-situ synchrotron study on microplastic flow of electrodeposited nanocrystalline nickel. In: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 701 . pp. 101-110.

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Abstract

Deformation in nanocrystalline (NC) materials is strongly influenced by the presence of a large fraction of grain boundaries. We present a comparative study on the role of intragranular root-mean-square strain and crystal-lographic texture on recovery processes. The detailed microstructure analysis with conventional X ray diffraction and in-situ synchrotron measurements during deformation are used to understand the various attributes of recovery mechanisms associated with annealing and deformation of electrodeposited NC nickel (grain size = 30 nm). Our results emphasize the dominance of local atomic rearrangements during thermal recovery processes, while deformation induced recovery processes are supported primarily by large-scale dislocation activity. The in-situ deformation of NC samples with two different textures illustrates further the influence of gran boundary character on recovery processes.

Item Type:	Journal Article
Publication:	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Additional Information:	Copy right for this article belongs to the ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	01 Sep 2017 09:48
Last Modified:	01 Sep 2017 09:48
URI:	http://eprints.iisc.ac.in/id/eprint/57722

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