The correlation of indentation size effect experiments with pyramidal and spherical indenters

Swadener, J.G., George, E.P. and Pharr, G.M. (2001). The correlation of indentation size effect experiments with pyramidal and spherical indenters. Materials Research Society Symposium Proceedings, 695 , pp. 451-456.

Abstract

Experiments were conducted in annealed iridium using pyramidal and spherical indenters over a wide range of load. For a Berkovich pyramidal indenter, the hardness increased with decreasing depth of penetration. However, for spherical indenters, hardness increased with decreasing sphere radius. Based on the number of geometrically necessary dislocations generated during indentation, a theory that takes into account the work hardening differences between pyramidal and spherical indenters is developed to correlate the indentation size effects measured with the two indenters. The experimental results verify the theoretical correlation.

Publication DOI: https://doi.org/10.1557/PROC-695-L11.5.1
Divisions: Engineering & Applied Sciences > Mechanical engineering & design
Engineering & Applied Sciences
Additional Information: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
Uncontrolled Keywords: annealed iridium,pyramidal indenters,spherical indenters, Iridium alloys,Indentation,Indentation size effect
Full Text Link: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8226658
Related URLs: http://www.scopus.com/inward/record.url?scp=0036352109&partnerID=8YFLogxK (Scopus URL)
Published Date: 2001
Authors: Swadener, J.G. ( 0000-0001-5493-3461)
George, E.P.
Pharr, G.M.

Export / Share Citation


Statistics

Additional statistics for this record