Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
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Authors
Pathak, Siddhartha
Kalidindi, Surya R.
Weaver, Jordan S.
Wang, Yongqiang
Doerner, Russell P.
Mara, Nathan A.
Issue Date
2017
Type
Article
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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.
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Citation
Pathak, S., Kalidindi, S. R., Weaver, J. S., Wang, Y., Doerner, R. P., & Mara, N. A. (2017). Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation. Scientific Reports, 7(1). doi:10.1038/s41598-017-12071-6
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ISSN
2045-2322