Indentation Size Effects in Ductile and Brittle Materials

Indentation hardness of homogeneous materials should be constant. However, at very small depths, the apparent hardness often increases with decreasing imprint size. The paper discusses various cases of this indentation size effect in metals and ceramics and explains the extrinsic and intrinsic reasons.

[1]  G. Pharr,et al.  The Indentation Size Effect: A Critical Examination of Experimental Observations and Mechanistic Interpretations , 2010 .

[2]  Keshra Sangwal,et al.  Review: Indentation size effect, indentation cracks and microhardness measurement of brittle crystalline solids – some basic concepts and trends , 2009 .

[3]  D. Dunstan,et al.  Materials mechanical size effects: a review , 2008 .

[4]  A. Bushby,et al.  Indentation size effect at the initiation of plasticity for ceramics and metals , 2008 .

[5]  David J. Dunstan,et al.  Size effect in the initiation of plasticity for ceramics in nanoindentation , 2008 .

[6]  Rashid K. Abu Al-Rub,et al.  Prediction of micro and nanoindentation size effect from conical or pyramidal indentation , 2007 .

[7]  Andrew J. Bushby,et al.  On the indentation size effect in spherical indentation , 2006 .

[8]  Keh Chih Hwang,et al.  A model of size effects in nano-indentation , 2006 .

[9]  Mark F. Horstemeyer,et al.  Interpretations of Indentation Size Effects , 2002 .

[10]  G. Pharr,et al.  The correlation of the indentation size effect measured with indenters of various shapes , 2002 .

[11]  J. Vlassak,et al.  Determination of indenter tip geometry and indentation contact area for depth-sensing indentation experiments , 1998 .

[12]  Huajian Gao,et al.  Indentation size effects in crystalline materials: A law for strain gradient plasticity , 1998 .

[13]  Philip Sargent,et al.  Indentation size effect and strain-hardening , 1989 .

[14]  T. Page,et al.  An explanation of the indentation size effect in ceramics , 1989 .