Correcting for contact area changes in nanoindentation using surface acoustic waves
Nanoindentation is extensively used to quantify nano-scale mechanical behaviour. A widely-used assumption is that a well-defined, material-independent relationship exists between the indentation depth and indenter contact area. Here we demonstrate that this assumption is violated by ion-implanted tu...
| Main Authors: | , , , , , |
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| Format: | Article |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/1721.1/113389 https://orcid.org/0000-0001-7804-5418 |
| _version_ | 1826208263153123328 |
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| author | Beck, Christian E. Hofmann, Felix Armstrong, David E.J. Eliason, Jeffrey Kristian Maznev, Alexei Nelson, Keith Adam |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Beck, Christian E. Hofmann, Felix Armstrong, David E.J. Eliason, Jeffrey Kristian Maznev, Alexei Nelson, Keith Adam |
| author_sort | Beck, Christian E. |
| collection | MIT |
| description | Nanoindentation is extensively used to quantify nano-scale mechanical behaviour. A widely-used assumption is that a well-defined, material-independent relationship exists between the indentation depth and indenter contact area. Here we demonstrate that this assumption is violated by ion-implanted tungsten, where pileup around the indenter tip leads to substantial changes in contact area. Using high accuracy surface acoustic wave measurements of elastic modulus, we are able to correct for this effect. Importantly we demonstrate that a priori knowledge of elastic properties can be readily used to compensate for pileup effects in nanoindentation without the need for any further measurements. Keywords: nanoindentation; pile-up; ion implantation; irradiation; surface acoustic waves |
| first_indexed | 2024-09-23T14:03:06Z |
| format | Article |
| id | mit-1721.1/113389 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:03:06Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1133892022-10-01T18:51:30Z Correcting for contact area changes in nanoindentation using surface acoustic waves Beck, Christian E. Hofmann, Felix Armstrong, David E.J. Eliason, Jeffrey Kristian Maznev, Alexei Nelson, Keith Adam Massachusetts Institute of Technology. Department of Chemistry Eliason, Jeffrey Kristian Maznev, Alexei Nelson, Keith Adam Nanoindentation is extensively used to quantify nano-scale mechanical behaviour. A widely-used assumption is that a well-defined, material-independent relationship exists between the indentation depth and indenter contact area. Here we demonstrate that this assumption is violated by ion-implanted tungsten, where pileup around the indenter tip leads to substantial changes in contact area. Using high accuracy surface acoustic wave measurements of elastic modulus, we are able to correct for this effect. Importantly we demonstrate that a priori knowledge of elastic properties can be readily used to compensate for pileup effects in nanoindentation without the need for any further measurements. Keywords: nanoindentation; pile-up; ion implantation; irradiation; surface acoustic waves National Science Foundation (U.S.) (Grant CHE-1111557) 2018-02-02T14:18:44Z 2018-02-02T14:18:44Z 2016-10 2016-09 2018-01-31T15:09:01Z Article http://purl.org/eprint/type/JournalArticle 1359-6462 http://hdl.handle.net/1721.1/113389 Beck, Christian E. et al. “Correcting for Contact Area Changes in Nanoindentation Using Surface Acoustic Waves.” Scripta Materialia 128 (February 2017): 83–86 © 2016 Acta Materialia Inc https://orcid.org/0000-0001-7804-5418 http://dx.doi.org/10.1016/J.SCRIPTAMAT.2016.09.037 Scripta Materialia Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Beck, Christian E. Hofmann, Felix Armstrong, David E.J. Eliason, Jeffrey Kristian Maznev, Alexei Nelson, Keith Adam Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_full | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_fullStr | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_full_unstemmed | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_short | Correcting for contact area changes in nanoindentation using surface acoustic waves |
| title_sort | correcting for contact area changes in nanoindentation using surface acoustic waves |
| url | http://hdl.handle.net/1721.1/113389 https://orcid.org/0000-0001-7804-5418 |
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