Effect of Pile-Up on Nanoindentation Measurements of Polycrystalline Bulk Metals

Abstract:

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This paper presents the results of an experimental investigation on the effects of orientation and grain size on nanoindentation measurements of hardness and modulus of elasticity for three polycrystalline metals: copper, nickel, and iron. Three geometrically different indenter tips were used, and the pile-ups were characterized with a surface probe instrument. The electron backscatter diffraction (EBSD) technique and a scanning electron microscope (SEM) were used to characterize grain orientation and microstructure. It was found that additional contact areas due to pile-ups have a significant effect on determination of mechanical properties by the nanoindenter.

Info:

Periodical:

Edited by:

Guohui Yang

Pages:

143-150

DOI:

10.4028/www.scientific.net/AMR.853.143

Citation:

R. A. Mirshams and A. K. Srivastava, "Effect of Pile-Up on Nanoindentation Measurements of Polycrystalline Bulk Metals", Advanced Materials Research, Vol. 853, pp. 143-150, 2014

Online since:

December 2013

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$35.00

* - Corresponding Author

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