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Temperature dependence of the indentation size effect

Published online by Cambridge University Press:  31 January 2011

Oliver Franke ,
Jonathan C. Trenkle  and
Christopher A. Schuh
Christopher A. Schuh*
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
*
a)Address all correspondence to this author. e-mail: schuh@mit.edu

Abstract

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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.

Keywords

NanoindentationHardness
Type
Materials Communications
Information
Journal of Materials Research , Volume 25 , Issue 7 , July 2010 , pp. 1225 - 1229
Copyright
Copyright © Materials Research Society 2010

References

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