Indentation size effect in spherical and pyramidal indentations

K Durst, M Göken, GM Pharr - Journal of Physics D: Applied …, 2008 - iopscience.iop.org
The indentation size effect (ISE) is studied for spherical and pyramidal indentations on a Ni
poly-crystal. The indentation experiments were conducted using a Berkovich geometry as …

Indentation size effect in metallic materials: Modeling strength from pop-in to macroscopic hardness using geometrically necessary dislocations

K Durst, B Backes, O Franke, M Göken - Acta Materialia, 2006 - Elsevier
The indentation size effect observed during indentation testing of crystalline materials is
modeled in terms of geometrically necessary dislocations using a corrected Nix/Gao model …

The correlation of the indentation size effect measured with indenters of various shapes

JG Swadener, EP George, GM Pharr - … of the Mechanics and Physics of …, 2002 - Elsevier
Experimental results are presented which show that the indentation size effect for pyramidal
and spherical indenters can be correlated. For a pyramidal indenter, the hardness measured …

Scaling relationships for indentation measurements

YT Cheng, Z Li, CM Cheng - Philosophical Magazine A, 2002 - Taylor & Francis
Using dimensional analysis and finite-element calculations, several relationships that relate
features of indentation loading and unloading curves to the hardness, the elastic modulus …

Indentation size effect in metallic materials: Correcting for the size of the plastic zone

K Durst, B Backes, M Göken - Scripta Materialia, 2005 - Elsevier
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 …

Modelling of sharp indentation experiments: some fundamental issues

PL Larsson - Philosophical Magazine, 2006 - Taylor & Francis
Correct interpretation of sharp indentation experiments requires a fundamental
understanding of the mechanics involved in the process. Such an understanding can only …

On the indentation size effect in spherical indentation

IJ Spary, AJ Bushby, NM Jennett - Philosophical magazine, 2006 - Taylor & Francis
Size effects in plasticity at small length scales have been widely reported in a variety of
loading situations. The hardness size effect has often been cited as an archetypal example …

Detailed assessment of indentation size-effect in recrystallized and highly deformed niobium

J Alkorta, JM Martínez-Esnaola, JG Sevillano - Acta materialia, 2006 - Elsevier
The nanoindentation hardness H of polycrystalline niobium in the recrystallized condition
and after up to eight room temperature 90° equal-channel angular pressing passes …

Size effects in nanoindentation: an experimental and analytical study

GZ Voyiadjis, R Peters - Acta mechanica, 2010 - Springer
This work addresses the size effect encountered in nanoindentation experiments. It is
generally referred to as the indentation size effect (ISE). Classical descriptions of the ISE …

Investigations on indentation size effects using a pile-up corrected hardness

YH Lee, JH Hahn, SH Nahm, JI Jang… - Journal of Physics D …, 2008 - iopscience.iop.org
Indentation size effects (ISEs) become severe in the nanoindentation regime because
various influencing factors become active in a very shallow indentation regime. Additionally …