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Indentation Size Effects in Single Crystal Cu as Revealed by Synchrotron X-ray Microdiffraction

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Probing Crystal Plasticity at the Nanoscales

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Abstract

The observation of Laue peak streaking near small indentations in the (111) surface of a copper single crystal is described. The geometrically necessary dislocation (GND) density is computed from the µSXRD data for a different indentation depths. It is shown that GND density increases with decreasing indentation depth, which is in agreement with a revised Nix-Gao model. This finding supports that the indentation size effect is associated with geometrically necessary dislocations and related strain gradients.

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Authors and Affiliations

  1. Singapore University of Technology and Design, Singapore, Singapore

    Arief Suriadi Budiman

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Correspondence to Arief Suriadi Budiman .

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Budiman, A.S. (2015). Indentation Size Effects in Single Crystal Cu as Revealed by Synchrotron X-ray Microdiffraction. In: Probing Crystal Plasticity at the Nanoscales. SpringerBriefs in Applied Sciences and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-287-335-4_6

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