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

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...

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Autores principales: Pathak, Siddhartha, Kalidindi, Surya R., Weaver, Jordan S., Wang, Yongqiang, Doerner, Russell P., Mara, Nathan A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607315/
https://www.ncbi.nlm.nih.gov/pubmed/28931874
http://dx.doi.org/10.1038/s41598-017-12071-6
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author Pathak, Siddhartha
Kalidindi, Surya R.
Weaver, Jordan S.
Wang, Yongqiang
Doerner, Russell P.
Mara, Nathan A.
author_facet Pathak, Siddhartha
Kalidindi, Surya R.
Weaver, Jordan S.
Wang, Yongqiang
Doerner, Russell P.
Mara, Nathan A.
author_sort Pathak, Siddhartha
collection PubMed
description 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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spelling pubmed-56073152017-09-24 Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation Pathak, Siddhartha Kalidindi, Surya R. Weaver, Jordan S. Wang, Yongqiang Doerner, Russell P. Mara, Nathan A. Sci Rep Article 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. Nature Publishing Group UK 2017-09-20 /pmc/articles/PMC5607315/ /pubmed/28931874 http://dx.doi.org/10.1038/s41598-017-12071-6 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Pathak, Siddhartha
Kalidindi, Surya R.
Weaver, Jordan S.
Wang, Yongqiang
Doerner, Russell P.
Mara, Nathan A.
Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
title Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
title_full Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
title_fullStr Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
title_full_unstemmed Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
title_short Probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
title_sort probing nanoscale damage gradients in ion-irradiated metals using spherical nanoindentation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607315/
https://www.ncbi.nlm.nih.gov/pubmed/28931874
http://dx.doi.org/10.1038/s41598-017-12071-6
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