Indentation in F.C.C. Single Crystals
A three-dimensional crystal-plasticity finite element model of nano-indentation is developed in this paper to analyze deformation of a face-centred cubic (f.c.c.) high-purity single crystal of copper. This model was implemented as a user-deﬁned subroutine in the commercial finite element software ABAQUS/Standard and used to study cases with different crystallographic orientations of the single crystal. The effects of various factors – crystallographic orientation of the indented material, an indenter angle and contact conditions between the indenter and workpiece material – on the load-displacement characteristics are studied. The obtained results show an anisotropic nature of surface topography around the obtained indents.
Mircea Nicoară, Aurel Răduţă and Carmen Opriş
A. Zahedi et al., "Indentation in F.C.C. Single Crystals", Solid State Phenomena, Vol. 188, pp. 219-225, 2012