Description of Unloading Behavior of Berkovich Nanoindentation

Abstract:

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We established a new expression to describe the nanoindentation unloading data by assuming that the Berkovich indenter behaves as a conical punch, rather than a paraboloid punch, and properly considering the effect of residual contact stress on the unloading load-displacement relation. The validity of this new approach was confirmed by analyzing the experimental data obtained for a series of brittle materials. It was shown that, compared with the generally adopted power law, this new expression has much clearer physical significance.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

1757-1760

DOI:

10.4028/www.scientific.net/KEM.280-283.1757

Citation:

H. Z. Miao et al., "Description of Unloading Behavior of Berkovich Nanoindentation", Key Engineering Materials, Vols. 280-283, pp. 1757-1760, 2005

Online since:

February 2007

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Price:

$35.00

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