Temperature dependence of the indentation size effect

The influence of temperature on the indentation size effect is explored experimentally. Copper is indented on a custom-built high-temperature nanoindenter at temperatures between ambient and 200 °C, in an inert atmosphere that precludes oxidation. Over this range of temperatures, the size effect is...

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Bibliographic Details
Main Authors: Franke, Oliver, Trenkle, Jonathan C., Schuh, Christopher A.
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:en_US
Published: Cambridge University Press/Materials Research Society 2012
Online Access:http://hdl.handle.net/1721.1/69887
https://orcid.org/0000-0001-9856-2682
Description
Summary:The influence of temperature on the indentation size effect is explored experimentally. Copper is indented on a custom-built high-temperature nanoindenter at temperatures between ambient and 200 °C, in an inert atmosphere that precludes oxidation. Over this range of temperatures, the size effect is reduced considerably, suggesting that thermal activation plays a major role in determining the length scale for plasticity.