Improved Method to Determine the Hardness and Elastic Moduli using Nano-Indentation
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Abstract
It is well known that hardness and elastic moduli can be determined by indenting the specimen to various depths. This paper shows the application of three application of three approximation approaches for this purpose: the ideal method, Sun’s method, and modified Oliver & Pharr’s method. A comparison of the results for silicon (100) and high speed steel (HSS) specimens in terms of hardness and elastic moduli has been made. In general, the results obtained from the Sun’s method are more stable and reliable than the other methods.
Keywords: Nanoindentation, load-displacement curve, hardness
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