Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study
Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionPhysical Science and Engineering (PSE) Division
Date
2014-07Permanent link to this record
http://hdl.handle.net/10754/563008
Metadata
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In this paper the texture evolution in nano-indentation experiments was investigated numerically. To achieve this, a three-dimensional implicit finite-element model incorporating a strain-gradient crystal-plasticity theory was developed to represent accurately the deformation of a body-centred cubic metallic material. A hardening model was implemented to account for strain hardening of the involved slip systems. The surface topography around indents in different crystallographic orientations was compared to corresponding lattice rotations. The influence of strain gradients on the prediction of lattice rotations in nano-indentation was critically assessed. © 2014 Elsevier B.V..Citation
Demiral, M., Roy, A., El Sayed, T., & Silberschmidt, V. V. (2014). Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study. Materials Science and Engineering: A, 608, 73–81. doi:10.1016/j.msea.2014.04.033Sponsors
The research leading to these results received funding from the European Union Seventh Framework Programme(FP7/2007-2013) under Grant agreement PITN-GA-2008-211536, project MaMiNa and KAUST baseline fund. MD thanks Prof. Fionn Dunne for useful discussions.Publisher
Elsevier BVae974a485f413a2113503eed53cd6c53
10.1016/j.msea.2014.04.033