Submitting Campus

Daytona Beach

Department

Aerospace Engineering

Document Type

Article

Publication/Presentation Date

11-11-2010

Abstract/Description

We examine the processes of spherical indentation and tension in Ni nanowires and thin films containing random distributions of nanoscale grains by molecular dynamics simulations. It is shown that the resistance to nanoindentation of nanocrystalline Ni nanowires with diameters of 12 and 30 nm tends not to depend on the wire diameter and free surfaces, contrary to nanoindentation in single-crystalline nanowires. Accommodation of plastic deformation by grain boundary sliding suggests a mitigation strategy for sample boundary effects in nanoscale plasticity.

Publication Title

Scripta Materialia

DOI

https://doi.org/10.1016/j.scriptamat.2010.08.028

Publisher

Elsevier

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