Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation

Siddhartha Pathak; Surya R. Kalidindi; Jordan S. Weaver; Yongqiang Wang; Russell P. Doerner; Nathan A. Mara

doi:10.1038/s41598-017-12071-6

Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation

Siddhartha Pathak, Surya R. Kalidindi, Jordan S. Weaver, Yongqiang Wang, Russell P. Doerner, Nathan A. Mara

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

We discuss and demonstrate the application of recently developed spherical nanoindentation stress-strain protocols in characterizing the mechanical behavior of tungsten polycrystalline samples with ion-irradiated surfaces. It is demonstrated that a simple variation of the indenter size (radius) can provide valuable insights into heterogeneous characteristics of the radiation-induced-damage zone. We have also studied the effect of irradiation for the different grain orientations in the same sample.

Original language	English (US)
Article number	11918
Journal	Scientific reports
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41598-017-12071-6
State	Published - Dec 1 2017

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© 2017 The Author(s).

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Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation

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