Figure 11.16 Deformation of a material by a grain boundary mechanisms. In an idealized
manner, the grains are depicted as hexagons of equal size. It is important to note (as depicted)
that the numbers and arrangement of the grains remain unchanged.
Figure 11.18 Size of the Vickers hardness indentation as a function of the indentation time,
together with the results of model calculations assuming the Ashby–Verall and Coble
mechanisms. In this case, TiAl deformation follows the Ashby–Verall mechanism [14].
Figure 11.17 Deformation of a material by the Ashby–Verall mechanism. Shown here are the
original, intermediary, and final states. The grain size dependency of this mechanism is d
À3
.
312j 11 Mechanical Properties of Nanoparticles
manner, the grains are depicted as hexagons of equal size. It is important to note (as depicted)
that the numbers and arrangement of the grains remain unchanged.
Figure 11.18 Size of the Vickers hardness indentation as a function of the indentation time,
together with the results of model calculations assuming the Ashby–Verall and Coble
mechanisms. In this case, TiAl deformation follows the Ashby–Verall mechanism [14].
Figure 11.17 Deformation of a material by the Ashby–Verall mechanism. Shown here are the
original, intermediary, and final states. The grain size dependency of this mechanism is d
À3
.
312j 11 Mechanical Properties of Nanoparticles