The Effect of the Vertex Angles of Wedged Indenters on Deformation during Nanoindentation
AbstractIn order to study the effect of the angle of wedged indenters during nanoindentation, indenters with half vertex angles of 60°, 70° and 80° are used for the simulations of nanoindentation on FCC aluminum (Al) bulk material by the multiscale quasicontinuum method (QC). The load-displacement responses, the strain energy-displacement responses, and hardness of Al bulk material are obtained. Besides, atomic configurations for each loading situation are presented. We analyze the drop points in the load-displacement responses, which correspond to the changes of microstructure in the bulk material. From the atom images, the generation of partial dislocations as well as the nucleation and the emission of perfect dislocations have been observed with wedged indenters of half vertex angles of 60° and 70°, but not 80°. The stacking faults move beneath the indenter along the direction
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Hu, X.; Ni, Y. The Effect of the Vertex Angles of Wedged Indenters on Deformation during Nanoindentation. Crystals 2017, 7, 380.
Hu X, Ni Y. The Effect of the Vertex Angles of Wedged Indenters on Deformation during Nanoindentation. Crystals. 2017; 7(12):380.Chicago/Turabian Style
Hu, Xiaowen; Ni, Yushan. 2017. "The Effect of the Vertex Angles of Wedged Indenters on Deformation during Nanoindentation." Crystals 7, no. 12: 380.
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