Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10634335 | Scripta Materialia | 2005 | 5 Pages |
Abstract
A correction method is proposed for the Nix/Gao model of the indentation size effect, assuming that the geometrically necessary dislocations are stored within the plastically deformed volume, whose radius is given, depending on the material, by a factor times the contact radius. Using this volume for calculating the depth dependence of hardness and the characteristic indentation length scale h* a good agreement with experiments is found for many metallic materials.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Karsten Durst, Björn Backes, Mathias Göken,