NDLI: Deformation Kinetics in Cu/Ta Nanoscale Multilayers

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Wang, F. Huang, P. Xu, M. Lu, T. J.
Copyright Year	2010
Abstract	Intensive research has been carried out on two key parameters important for interpreting the deformation kinetics of nanocrystalline metals, i.e., strain rate sensitivity and activation volume. Other than nanocrystalline metals, however, only a few recent studies focus on evaluating the two parameters for nanoscale multilayers that also possess nanoscale grain size. Using transmission electron microscope and nanoindentation test, we study the deformation behavior of nanoscale Cu/Ta multilayers having modulation period of 140 nm and 18 nm, respectively. The microstructure, grain size and strain rate sensitivity of the nanoscale multilayer subjected to nanoindentation are examined to explore its deformation mechanisms. It is established that the strain rate sensitivity of nanoscale Cu/Ta multilayers differ from those of nanocrystalline metals. The implications of these findings for the mechanical properties of nanoscale multilayers are discussed.
Starting Page	631
Ending Page	643
Page Count	13
File Format	PDF
ISBN	9780791844465
DOI	10.1115/IMECE2010-37483
Volume Number	Volume 9: Mechanics of Solids, Structures and Fluids
Conference Proceedings	ASME 2010 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2010-11-12
Publisher Place	Vancouver, British Columbia, Canada
Access Restriction	Subscribed
Subject Keyword	Grain size Deformation Metals Nanoindentation Nanoscale phenomena Electron microscopes Mechanical properties
Content Type	Text
Resource Type	Article

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