Numerical comparison between Berkovich and conical nano-indentations: mechanical behaviour and micro-texture evolution

Authors

Mao Liu, University of WollongongFollow
Cheng Lu, University of WollongongFollow
A Kiet Tieu, University of WollongongFollow
Hailiang Yu, University of WollongongFollow

RIS ID

94780

Publication Details

Liu, M., Lu, C., Tieu, K. & Yu, H. (2014). Numerical comparison between Berkovich and conical nano-indentations: mechanical behaviour and micro-texture evolution. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 619 57-65.

Abstract

A crystal plasticity finite element method (CPFEM) model has been developed to investigate the influence of indenter geometry on the mechanical behaviour and micro-texture evolution during nano-indentation of single crystal aluminium. The developed model has been validated by comparison with experimental observations. The numerical results show that indenter geometry influences the load-indentation depth curve, hardness and elastic modulus significantly. The surface profile, equivalent plastic strain distribution and micro-texture evolution during nano-indentation have been analysed in detail.